SLA Series Three-Phase Monitoring Relay

SLA Series Three-Phase Monitoring Relay

The SLA Series Three-Phase Monitoring Relay from ATC Diversified Electronics is designed to provide cost-effective protection against from phase loss, under voltage, and phase reversal conditions that can contribute to premature motor or equipment failure and downtime.

UOA Series Single Phase Under Voltage Monitoring Relay

UOA Series Single Phase Under Voltage Monitoring Relay

The UOA Series Single Phase Under Voltage Monitoring Relay from the ATC Diversified Electronics division of Marsh Bellofram is a family of single phase voltage monitoring relays, designed to ensure the cost-effective reliable protection of critical equipment that is required […]

VBA Series Single Phase Monitoring Relay

VBA Series Single Phase Monitoring Relay

The VBA Series Single Phase Monitoring Relay from the ATC Diversified Electronics division of Marsh Bellofram is a family of single phase voltage monitoring relays, designed to ensure the cost-effective reliable protection of critical equipment that is required to continuously […]

CBA Series AC Current Band Monitoring Relay

CBA Series AC Current Band Monitoring Relay

The CBA Series AC Current Band Monitoring Relay from the ATC Diversified Electronics division of Marsh Bellofram is used to detect both under and over current conditions which could have a potentially negative effect on the continuous operation of motors, […]

CDD Series Universal DC Current Monitoring Relay

CDD Series Universal DC Current Monitoring Relay

The CDD Series Universal DC Current Monitoring Relay from the ATC Diversified Electronics division of Marsh Bellofram is used to detect both DC under and over current conditions which could have a potentially negative effect on the continuous operation of […]

CDO Series DC Over Current Monitor

CDO Series DC Over Current Monitor

The CDO Series DC Over Current Monitor from the ATC Diversified Electronics division of Marsh Bellofram is used to detect both DC over current conditions which could have a potentially negative effect on the continuous operation of motors, pumps or […]

CMB Series AC Go/No-Go Current Monitoring Relay

CMB Series AC Go/No-Go Current Monitoring Relay

The CMB Series AC Go/No-Go Current Monitoring Relay from the ATC Diversified Electronics division of Marsh Bellofram is designed to detect the presence and level of AC current, ensuring consistent levels for the continuous operation of motors, pumps or other […]

CMO Series AC Over Current Monitoring Relay

CMO Series AC Over Current Monitoring Relay

The CMO Series AC Over Current Monitoring Relay from the ATC Diversified Electronics division of Marsh Bellofram is an AC over current monitoring relay with adjustable time delay, designed to prevent damage and premature equipment failure in pumps, motors and […]

CMU Series AC Under Current Monitor

CMU Series AC Under Current Monitor

The CMU Series AC Under Current Monitor from the ATC Diversified Electronics division of Marsh Bellofram is an AC under current monitoring relay with adjustable time delay, designed to prevent damage and premature equipment failure in pumps, motors and other […]

CMG Series Self-powered Go No-Go AC Current Monitoring Relay

CMG Series Self-powered Go No-Go AC Current Monitoring Relay

The CMG Series Self-powered Go No-Go AC Current Monitoring Relay from the ATC Diversified Electronics division of Marsh Bellofram is self-powered solid state go-no-go current monitoring relay, designed to detect the presence of AC current. No physical connection is required […]

CMG-0101 Series AC Self-Powered Current Monitoring Relay

CMG-0101 Series AC Self-Powered Current Monitoring Relay

The CMG-0101 Series AC Self-Powered Current Monitoring Relay from the ATC Diversified Electronics division of Marsh Bellofram is a solid state self-powered monitoring relay that is used to detect the presence of AC current go/no-go. When the monitored current exceeds […]

ARA, ARB Series Duplexer Alternating Relays

ARA, ARB Series Duplexer Alternating Relays

ARA, ARB Series Duplexer Alternating Relays from the ATC Diversified Electronics Division of Marsh Bellofram are used in control panel applications where two loads are required to alternate in order to provide equal run time. The alternating action is initiated […]

ARA Series Triplexer Quadraplexer Alternating Relays

ARA Series Triplexer Quadraplexer Alternating Relays

ARA Series Triplexer Quadraplexer Alternating Relays from the ATC Diversified Electronics Division of Marsh Bellofram are designed for use in multiple load installations that are required to alternate in sequence while assuring equal run time on all loads. They also […]

ARA Series Expandable Alternating Relays

ARA Series Expandable Alternating Relays

ARA series expandable alternating relays from the ATC Diversified Electronics Division of Marsh Bellofram are designed for use in multiple load installations that are required to alternate in sequence and have the ability to accept an additional load installation in […]

ARA-120-AHE Special Function Triplexer Alternating Relay

ARA-120-AHE Special Function Triplexer Alternating Relay

The ARA-120-AHE special function triplexer alternating relay from the ATC Diversified Electronics Division of Marsh Bellofram are designed for use in three-load installations.  This model has a field selection switch that is used to omit one of the three loads […]

ARA-120-AJE Alternating Relay with Sequence Locking Switch

ARA-120-AJE Alternating Relay with Sequence Locking Switch

The ARA-120-AJE Alternating Relay with Sequence Locking Switch is a special function triplexer alternating relays are designed three-load installations. 

ARM Series Integrated Duplex Controller

ARM Series Integrated Duplex Controller

The ARM Series Integrated Duplex Controller with Intrinsically Safe Inputs from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability alternating relays and duplex controllers, designed to ensure equal runtime of multiple load installations in […]

ARM Series Alternating Triplex Quadraplex Controllers

ARM Series Alternating Triplex Quadraplex Controllers

ARM Series Alternating Triplex Quadraplex Controllers from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability alternating relays and triplex and quadraplex controllers, designed to ensure equal runtime of multiple load installations in pump sequencing, […]

ISO Series Single Channel Isolated Switch

ISO Series Single Channel Isolated Switch

The ISO Series Single Channel Isolated Switch from the ATC Diversified Electronics Division of Marsh Bellofram is a family of single- channel devices used to provide a safe and reliable means of controlling loads from hazardous locations without releasing sufficient […]

ISO ISL Series Multiple Channel Isolated Switches

ISO ISL Series Multiple Channel Isolated Switches

ISO ISL Series Multiple Channel Isolated Switches from the ATC Diversified Electronics Division of Marsh Bellofram are a family of multi- channel devices used to provide a safe and reliable means of controlling loads from hazardous locations without releasing sufficient […]

TBD Series Off-Delay DIP Switch Time Delay Relay

TBD Series Off-Delay DIP Switch Time Delay Relay

The TBD Series Off-Delay DIP Switch Time Delay Relay from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability off-delay DIP switch time delay relays (TDRs), designed to equip industrial machinery, conveyor belts, exhaust fans, […]

TBE Series Single Shot DIP Switch Time Delay Relay

TBE Series Single Shot DIP Switch Time Delay Relay

The TBE Series Single Shot DIP Switch Time Delay Relay from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability single shot DIP switch time delay relays (TDRs), designed to equip industrial machinery, conveyor belts, […]

TDB TUB Series Interval Relay Output

TDB TUB Series Interval Relay Output

The TDB TUB Series Interval Relay Output from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability interval relay outputs, designed to equip industrial machinery, conveyor belts, exhaust fans, heating systems, lubricators, and pump and […]

TDC TUC Series On-Delay Relay Output

TDC TUC Series On-Delay Relay Output

The TDC TUC Series On-Delay Relay Output from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability ON-delay relay outputs, designed to equip industrial machinery, conveyor belts, exhaust fans, heating systems, lubricators, and pump and […]

TDD TUD Series OFF-Delay Relay Output

TDD TUD Series OFF-Delay Relay Output

The TDD TUD Series OFF-Delay Relay Output from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability OFF-delay relay outputs, designed to equip industrial machinery, conveyor belts, exhaust fans, heating systems, lubricators, and pump and […]

TDE/TUE Series Single-Shot Relay Output

TDE/TUE Series Single-Shot Relay Output

The TDE/TUE series from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability single-shot relay outputs, designed to equip industrial machinery, conveyor belts, exhaust fans, heating systems, lubricators, and pump and motor controls with timed […]

ETN Series Solid-State Flasher

ETN Series Solid-State Flasher

The ETN Series Solid-State Flasher from the ATC Diversified Electronics division of Marsh Bellofram Corporation is a family of rugged, high-reliability solid-state flasher relays, designed to equip industrial machinery, conveyor belts, exhaust fans, heating systems, lubricators, and pump and motor […]

TSB Series Interval Solid-State Output Timers

TSB Series Interval Solid-State Output Timers

The TSB Series Interval Solid-State Output Timers from the ATC Diversified Electronics division of Marsh Bellofram are a family of rugged, high-reliability interval solid-state output time delay relays (TDRs).  The time delay begins when power is applied to the timer. […]

TSC Series ON-Delay Solid-State Output Time Delay Relay

TSC Series ON-Delay Solid-State Output Time Delay Relay

The TSC Series ON-Delay Solid-State Output Time Delay Relay from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability ON-delay solid state output time delay relays (TDRs), available in both fixed and adjustable time versions.  […]

TSD Series OFF-Delay Solid-State Output Timer

TSD Series OFF-Delay Solid-State Output Timer

The TSD Series OFF-Delay Solid-State Output Timer from the ATC Diversified Electronics division of Marsh Bellofram Corporation is a family of rugged, high-reliability OFF-delay solid state output time delay relays (TDRs), available in both fixed and adjustable time versions.

TSE Series Single Shot Solid-State Output Time Delay Relay

TSE Series Single Shot Solid-State Output Time Delay Relay

The TSE Series Single Shot Solid-State Output Time Delay Relay from ATC Diversified Electronics is a family of rugged, high-reliability single shot solid state output time delay relays (TDRs).  The distinguishing feature of this series is its single shot switch […]

SLB Series Phase Unbalance Monitor

SLB Series Phase Unbalance Monitor

The SLB Series Phase Unbalance Monitor from the ATC Diversified Electronics division of Marsh Bellofram Corporation is designed to protect three-phase equipment against Phase Unbalance, Phase Loss, and Phase Reversal conditions.

SLC Series Phase Unbalance and Loss Monitor

SLC Series Phase Unbalance and Loss Monitor

The SLC Series Phase Unbalance and Loss Monitor from the ATC Diversified Electronics division of Marsh Bellofram Corporation is designed to protect 3-phase equipment against Phase Unbalance and Phase Loss conditions.

SLD Series Phase and Under-Voltage Monitor

SLD Series Phase and Under-Voltage Monitor

The SLD Series Phase and Under-Voltage Monitor from the ATC Diversified Electronics division of Marsh Bellofram Corporation is designed to protect 3-phase equipment against Phase Unbalance, Phase Loss, Under Voltage and Phase Reversal conditions.

SLE Series Phase Monitor

SLE Series Phase Monitor

The SLE Series Phase Monitor from the ATC Diversified Electronics division of Marsh Bellofram Corporation is designed to protect three-phase equipment against Phase Unbalance, Phase Loss, and Under Voltage.

SLH Series Phase Loss, Under Voltage and Phase Sequence Monitor Relay

SLH Series Phase Loss, Under Voltage and Phase Sequence Monitor Relay

The SLH Series Phase Loss, Under Voltage and Phase Sequence Monitor/Relay from the ATC Diversified Electronics division of Marsh Bellofram Corporation is designed to protect equipment against PHASE LOSS (single phasing), UNDER VOLTAGE (brown outs), and PHASE REVERSAL (improper sequence).  […]

SLJ Series Phase Sequence Under Voltage Monitor

SLJ Series Phase Sequence Under Voltage Monitor

The SLJ Series Phase Sequence Under Voltage Monitor from the ATC Diversified Electronics division of Marsh Bellofram Corporation has a built-in Delay-on-Make Time Delay. The SLJ continuously monitors the three phase lines for adverse conditions such as PHASE LOSS (single […]

PBC Series 3-Phase Voltage Band Monitor

PBC Series 3-Phase Voltage Band Monitor

The PBC Series 3-Phase Voltage Band Monitor from the ATC Diversified Electronics division of Marsh Bellofram Corporation offers protection to three-phase equipment that is required to operate between two voltage limits. All three phases are monitored individually for a pre-selected under […]

PBD Series 3-Phase Sequence & Voltage Band Monitor Relays

PBD Series 3-Phase Sequence & Voltage Band Monitor Relays

PBD Series 3-Phase Sequence & Voltage Band Monitor Relays from ATC Diversified Electronics offers protection to three-phase sequence sensitive equipment that is required to operate between two voltage limits. All three phases are monitored individually for a pre-selected Under and […]

PBE Series True RMS 3-Phase Sequence Voltage Band Monitor Relay

PBE Series True RMS 3-Phase Sequence Voltage Band Monitor Relay

About the PBE Series True RMS 3-Phase Sequence Voltage Band Monitor Relay from the ATC Diversified Electronics division of Marsh Bellofram Corporation: In today’s industrial environment, Line Noise and Power Line Harmonics are becoming an increasing problem. True-RMS detection may […]

CV Series Single Phase Under Over Voltage Monitor

CV Series Single Phase Under Over Voltage Monitor

The CV Series Single Phase Under Over Voltage Monitor from the ATC Diversified Electronics division of Marsh Bellofram combines the voltage monitor with short cycle protectors for appliance control. These units employ a user selectable voltage range Set Point switch.  […]

CT Series Current Transformers

CT Series Current Transformers

The CT Series Current Transformers are of the inserted primary type with the secondary toroidally wound over a core of oriented electrical steel.

TBB Interval DIP Switch Time Delay Relay

TBB Interval DIP Switch Time Delay Relay

About the TBB Interval DIP Switch Time Delay Relay from the ATC Diversified Electronics division of Marsh Bellofram Corporation: When supply voltage is applied to the input terminals, the relay energizes and the time delay begins. Upon completion of the […]

TBC On-Delay DIP Switch Time Delay Relay

TBC On-Delay DIP Switch Time Delay Relay

The TBC On-Delay DIP Switch TDR time delay from the ATC Diversified Electronics division of Marsh Bellofram Corporation begins when supply voltage is applied to the input. Upon completion of the delay period, the relay energizes. Reset during or after […]

TBF Repeat Cycle-OFF Timer First DIP Switch Time Delay Relay

TBF Repeat Cycle-OFF Timer First DIP Switch Time Delay Relay

About the TBF Repeat Cycle-OFF Timer First DIP Switch Time Delay Relay from the ATC Diversified Electronics division of Marsh Bellofram Corporation: When supply voltage is applied to the input, the OFF time (T1) begins. Upon completion of the OFF […]

TBG Repeat Cycle-ON Time First DIP Switch TDR

TBG Repeat Cycle-ON Time First DIP Switch TDR

About the TBG Repeat Cycle-ON Time First DIP Switch TDR from the ATC Diversified Electronics division of Marsh Bellofram Corporation: When supply voltage is applied to the input, the relay energizes and ON time (T1) begins. Upon completion of the […]

TBL Flasher DIP Switch Time Delay Relay

TBL Flasher DIP Switch Time Delay Relay

About the TBL Flasher DIP Switch Time Delay Relay from the ATC Diversified Electronics division of Marsh Bellofram Corporation: When supply voltage is applied to the input, the OFF time (T1) begins. Upon completion of the OFF time, the relay […]

TBU Programmable Multi-Mode DIP Switch TDR

TBU Programmable Multi-Mode DIP Switch TDR

The TBU Programmable Multi-Mode DIP Switch TDR from the ATC Diversified Electronics division of Marsh Bellofram Corporation offers the accuracy of DIP SWITCH delay ranges “A” through “E” as well as the user programmable model, DIP SWITCH delay range “P,” […]

TDF Repeat Cycle-OFF Time First Relay Output

TDF Repeat Cycle-OFF Time First Relay Output

Application of voltage to the input of the timer initiates the OFF time. Upon completion of the OFF time, the relay energizes and the ON time begins. Upon completion of the ON time, the relay de-energizes and one cycle is […]

TDG Repeat Cycle-ON Timer First Relay Output

TDG Repeat Cycle-ON Timer First Relay Output

Application of voltage to the input of the timer energizes the relay and initiates the ON time. Upon completion of the ON time, the relay de-energizes and the OFF time begins. Upon completion of the OFF time, the relay energizes […]

TDH Delayed Interval Relay Output

TDH Delayed Interval Relay Output

Application of voltage to the input of the timer initiates the OFF time. Upon completion of the OFF time, the relay energizes and the ON time begins. Upon completion of the ON time, the relay de-energizes and the cycle is […]

TDI Delay Single Shot Relay Output

TDI Delay Single Shot Relay Output

Voltage is continuously applied to the input. An external isolated switch controls the timer. When closed (momentary or maintained), the OFF time begins. Upon completion of the OFF time, the relay energizes and the ON time begins. Upon completion of […]

TDJ Series On-Delay/OFF-Delay Relay Output

TDJ Series On-Delay/OFF-Delay Relay Output

Voltage is continuously applied to the input. An external isolated switch controls the timer. When closed, the ON delay (T1) begins. Upon completion, the relay energizes. When the switch opens, the OFF delay (T2) begins. Upon completion, the relay de-energizes […]

TDM Energy Conservation Timer Relay Output

TDM Energy Conservation Timer Relay Output

When voltage is applied to the input, the internal relay picks up and the time delay begins regardless of the position of the control switch. With the switch in the open position, when voltage is applied, the timer will complete […]

TDP Percentage Timer Relay Output

TDP Percentage Timer Relay Output

When voltage is applied to the input, the internal relay energizes and the ON time (T1) begins. Upon completion of the ON time, the relay de-energizes and the OFF time (T2) begins. At the completion of the OFF time, one […]

TDT Series True OFF-Delay Relay Output

TDT Series True OFF-Delay Relay Output

When voltage is applied to the input, the relay energizes. When voltage is removed, the OFF delay begins. Upon completion of the delay period, the relay de-energizes. Reset is accomplished by reapplying voltage to the input terminals.

TDU Series Programmable Multi-Mode Relay Output

TDU Series Programmable Multi-Mode Relay Output

The TDU Series is one of the most versatile single timers available today. One model replaces forty-eight industry standard devices; 4 wide delay ranges x 6 most common modes of operation x 2 supply voltages—since they will operate on both […]

TDL Series Flasher Relay Output

TDL Series Flasher Relay Output

TDL Series Flasher Relay Output from the ATC Diversified Electronics Division from Marsh Bellofram Corporation. When power is applied to the input, the OFF time begins. Upon completion of the OFF time, the relay energizes and the ON time begins. […]

TSK Series Flasher Solid-State Output Timer

TSK Series Flasher Solid-State Output Timer

The TSK Series Flasher Solid-State Output Timer from the ATC Diversified Electronics division of Marsh Bellofram Corporation offers reliability and performance within a variety of applications. When power is applied, the OFF time begins. Upon completion of the OFF time, […]

TSL Series Flasher Solid-State Output Timer

TSL Series Flasher Solid-State Output Timer

The TSL Series Flasher Solid-State Output Timer from the ATC Diversified Electronics division of Marsh Bellofram offers reliability and performance. When power is applied, the OFF time begins. Upon completion of the OFF time, the load energizes and the ON […]

TSA Series Interval Solid-State Output

TSA Series Interval Solid-State Output

The TSA Series Interval Solid-State Output from the ATC Diversified Electronics division of Marsh Bellofram Corporation is a two input terminal device that connects in series with the input and load. When voltage is applied to the input terminals, the […]

TSF Repeat Cycle-OFF Time First Solid-State Output Timer

TSF Repeat Cycle-OFF Time First Solid-State Output Timer

About the TSF Repeat Cycle-OFF Time First Solid-State Output Timer from ATC Diversified Electronics: Application of voltage to the input of the timer initiates the OFF time. Upon completion of the OFF time, the load energizes and the ON time begins. […]

TSG Repeat Cycle-ON Time First Solid-State Output

TSG Repeat Cycle-ON Time First Solid-State Output

About the TSG Repeat Cycle-ON Time First Solid-State Output: Application of voltage to the input of the timer energizes the load and initiates the ON time. Upon completion of the ON time, the load de-energizes and the OFF time begins. […]

TSH Series Delayed Interval Solid-State Output Timer

TSH Series Delayed Interval Solid-State Output Timer

About the TSH Series Delayed Interval Solid-State Output Timer: Application of voltage to the input of the timer initiates the OFF time. Upon completion of the OFF time, the load energizes and the ON time begins.

TSM Energy Conservation Timer Solid-State Output

TSM Energy Conservation Timer Solid-State Output

The TSM Energy Conservation Timer Solid-State Output from the ATC Diversified Electronics division of Marsh Bellofram offers extended performance and reliability. When voltage is applied to the input, the internal relay picks up and the time delay begins regardless of […]

AC-2020 Series 3-Phase Compressor Protector

AC-2020 Series 3-Phase Compressor Protector

The AC 2020 compressor protector provides multi-mode time delays, reset selections and a memory capability which indicates using LED’s, the last fault condition. This offers not only protection for the compressor in adverse electrical conditions, but also a method to […]

AC-410 Phase Sequence Loss Monitor

AC-410 Phase Sequence Loss Monitor

About the AC-410 Phase Sequence Loss Monitor from the ATC Diversified Electronics division of Marsh Bellofram: This internal control relay drops out and a 3 minute delay-on-break time delay begins. This delay is used to lock out the compressor, allowing […]

AC-503 Series Delay-On-Break Timer

AC-503 Series Delay-On-Break Timer

The AC-503 Series Delay-On-Break Timer from the ATC Diversified Electronics division of Marsh Bellofram is a family of HVAC controls provides short cycle protection by locking out the compressor for a period of time after a voltage or thermostat interruption. […]

AC-505-5 Series Delay-On-Break Timer

AC-505-5 Series Delay-On-Break Timer

The AC-505-5 Series Delay-On-Break Timer from the ATC Diversified Electronics division of Marsh Bellofram provides short cycle protection by locking out the compressor for a period of time after a voltage or thermostat interruption.

ASC-500 Series Delay-On-Break Timer

ASC-500 Series Delay-On-Break Timer

The ASC-500 Series Delay-On-Break Timer from the ATC Diversified Electronics division of Marsh Bellofram Corporation provides short cycle protection by locking out the compressor for a period of time after a voltage or thermostat interruption.

AC-800 Series Star Performer Timer

AC-800 Series Star Performer Timer

The ATC Diversified AC-800 Series Star Performer Timer is a Delay On Make Timer, providing short cycle protection of compressors by delaying restart after a voltage or control circuit interruption.

PRT Phase Rotation Tester

PRT Phase Rotation Tester

The PRT Phase Rotation Tester from the ATC Diversified Electronics division of Marsh Bellofram Corporation is a hand-held tester that takes the guesswork out of connecting a three-phase motor.

RB-08 Surface Mounted

RB-08 Surface Mounted

Recommended for use with all 8 pin octal plug-in devices. UL Recognized and CSA Certified for 10 Amps @ 600 VAC.

OT-08 Din Rail/Surface Mounted

OT-08 Din Rail/Surface Mounted

DIN rail mount. Recommended for use with all 8 pin octal plug-in devices. UL Recognized and CSA Certified for 10 Amps @ 600 VAC.

PFO83A Din Rail/Surface Mounted

PFO83A Din Rail/Surface Mounted

Recommended for use with all 8 pin octal plug-in devices. UL Recognized and CSA Certified for 10 Amps @ 300 VAC. The molded polycarbonate base has brass, nickel plated inserts with #6-40 steel, nickel plated screws and captive self-lifting terminal […]

RB-11 Surface Mounted

RB-11 Surface Mounted

Recommended for use with all 11-pin magnal plug-in devices. UL Recognized and CSA certified for 10 Amp @ 300 VAC. The molded thermoplastic base has brass, nickel plated inserts with #6-32 steel, nickel plated screws.

70-463-1 Surface Mounted

70-463-1 Surface Mounted

Recommended for use with all 0.187 blade 11 Pin Square base plug-in devices. UL Recognized and CSA Certified for 10 Amps @ 300 VAC. The molded thermoplastic base has brass, nickel plated inserts with #6-32 steel, nickel plated screws.

PF113A Din Rail/Surface Mounted

PF113A Din Rail/Surface Mounted

Recommended for use with all 11 pin magnal plug-in devices. UL Recognized and CSA certified for 10 Amps @ 300 VAC. The molded polycarbonate base has brass, nickel plated inserts with #6-40 steel, nickel plated screws and captive self lifting […]

PYF14A Din Rail/Surface Mounted

PYF14A Din Rail/Surface Mounted

Recommended for use with all 14 pin multi-contact square base devices. UL Recognized and CSA Certified for 5 Amps @ 300 VAC.

Adjustment 101-026-105

Adjustment 101-026-105

Recommended for use with all the ATC Diversified Electronics family of “remote adjustable” timers. Proper spacing is maintained for UL and CSA applications.

Adjustment Hardware Lock Nut 100-054-070

Adjustment Hardware Lock Nut 100-054-070

Recommended for use with any adjustment or switch having a 3/8″ x 32 NEF bushing and 1/4″ shaft.

Flat Nut 100-054-071

Flat Nut 100-054-071

Recommended for use with any adjustment or switch having a 3/8″ x 32 NEF bushing and 1/4″ shaft. Ideally suited for a 101026105 adjustment and 100054073 knob.

Knob 100-054-073

Knob 100-054-073

Recommended for use with any adjustment or switch having a 1/4″ shaft.

Hold Down Bracket 100-054-080

Hold Down Bracket 100-054-080

Recommended for use with ATC-Diversified Electronics devices having octal or magnal plug-in bases.

Saddle Clamp Screw 100-054-226

Saddle Clamp Screw 100-054-226

The Saddle Clamp Screw can be used with all ATC-Diversified Electronics Style E surface mount enclosures.

Spring Clip 100-054-275

Spring Clip 100-054-275

Spring Clip. Set of 2. Can only be used with the PF083A socket.

SLU-0200 Series Universal Phase Monitoring Relay

SLU-0200 Series Universal Phase Monitoring Relay

The SLU-0200 Series Universal Phase Monitoring Relay (3-Phase Monitors) provides cost-effective protection against premature equipment failure or downtime caused by voltage faults or untimely outages on 3-Phase systems (Wye or Delta). The SLU-0200 comes complete with “Rapid Cycle Lockout.”

Model DPR175A Phase Voltage Monitoring Relay (3 Phase)

Model DPR175A Phase Voltage Monitoring Relay (3 Phase)

The Model DPR175A Phase Voltage Monitoring Relay (3 Phase) from the ATC Diversified Electronics division of Marsh Bellofram Corporation is a high-performance voltage and phase monitoring relay designed to protect industrial machinery, motors, and pumps against premature equipment failure caused […]

Universal Power Alert Model UPA-100S

Universal Power Alert Model UPA-100S

Universal Power Alert model UPA-100S reduces the risk of electrical arc flash by pre-verifying the electrical isolation from outside of a control panel.

SLM Series Microprocessor-based Three-Phase Monitor

SLM Series Microprocessor-based Three-Phase Monitor

The SLM Series Microprocessor-based Three-Phase Monitor from the ATC Diversified Electronics division of Marsh Bellofram Corporation is a microprocessor based 3 phase monitor. This device protects 3 phase equipment from under voltage, over voltage, phase loss, phase reversal, phase unbalance, […]

ARC ARD Series 8-pin Plug-in Pump Duplexor

ARC ARD Series 8-pin Plug-in Pump Duplexor

The ARC ARD Series 8-pin Plug-in Pump Duplexor from ATC Diversified Electronics is an 8-pin plug-in duplexor featuring sequence on simultaneous off (SOSO) three-input functionality.  The duplexor is designed to detect float switch inputs, from which it determines the necessary […]

SLU-0201 Universal Three Phase Voltage Monitoring Relay

SLU-0201 Universal Three Phase Voltage Monitoring Relay

Model SLU-0201 universal three phase phase voltage monitoring relay from the ATC Diversified Electronics Division of Marsh Bellofram Corporation provides cost effective protection against premature equipment failure caused by voltage faults on 3-Phase systems (Wye or Delta).

CDU Series DC Current Monitor Relays

CDU Series DC Current Monitor Relays

CDU Series DC current monitor relays from the ATC Diversified Electronics division of Marsh Bellofram is used to detect UNDER CURRENT conditions. The internal relay is energized (Pick-up) when the monitored current is above the preset trip point. The relay […]

CLB Series Three-Phase Current Unbalance and Over Current Monitor

CLB Series Three-Phase Current Unbalance and Over Current Monitor

The CLB Series Three-Phase Current Unbalance and Over Current Monitor from the ATC Diversified Electronics division of Marsh Bellofram is used to protect three phase equipment against CURRENT UNBALANCE and OVER CURRENT conditions. The control voltage is continuously applied to […]

CMD Series AC Universal Current Monitor

CMD Series AC Universal Current Monitor

The CMD Series AC Universal Current Monitor from the ATC Diversified Electronics division of Marsh Bellofram may be used as an OVER CURRENT Monitor or an UNDER CURRENT Monitor.

CMI Series AC Over Current Monitor

CMI Series AC Over Current Monitor

The CMI Series AC Over Current Monitor Relay from the ATC Diversified Electronics division of Marsh Bellofram operates in the FAILSAFE MODEL as the relay is energized (pick-up) when the monitored AC current is normal. The relay de-energizes (Drop-out) when […]

CML Series AC Over Current Monitor

CML Series AC Over Current Monitor

The CML Series AC Over Current Monitor from the ATC Diversified Electronics division of Marsh Bellofram is used to detect OVER CURRENT conditions. The internal relay energizes (Pick-up) when the monitored current exceeds the preset trip point for longer than […]

AC 2020 Series 3-Phase Compressor Protector

AC 2020 Series 3-Phase Compressor Protector

The AC 2020 3-Phase Compressor Protector from the ATC Diversified Electronics division of Marsh Bellofram Corporation provides multimode time delays, reset selections and a memory capability which indicates using LED’s, the last fault condition. This offers not only protection for […]

LPC Series Liquid Level Pump Controller

LPC Series Liquid Level Pump Controller

The ATC Diversified LPC Series Liquid Level Pump Controller is a conductive liquid level controller that uses two probes to sense tank level. There are two modes of operation that are user selectable: Drain (Pump Down): The output relay of […]

AC-410 Series Phase Sequence Loss Monitor

AC-410 Series Phase Sequence Loss Monitor

The AC-410 Series Phase Sequence Loss Monitor from the ATC Diversified Electronics division of Marsh Bellofram are plug in Phase Sequence and Loss Monitors that protect 3 phase refrigeration equipment from adverse line conditions such as: PHASE LOSS (SINGLE PHASING): […]

AC-503 Series Delay-On Break Timers

AC-503 Series Delay-On Break Timers

AC-503 Series Delay-on-Break Timers from the ATC Diversified Electronics division of Marsh Bellofram are a family of HVAC controls. They provide short cycle protection by locking out the compressor for a period of time after a voltage or thermostat interruption. […]

Model DPR350B DIN Rail Mount Voltage Phase Monitor

Model DPR350B DIN Rail Mount Voltage Phase Monitor

The Model DPR350B DIN rail mount voltage phase monitor from the ATC Diversified Electronics division of Marsh Bellofram is designed to monitor under voltage, over voltage, frequency shift, imbalance, phase loss and phase sequence for three-phase, three-wire and three-phase, four-wire […]

MAR Series Motor Auto-Restart Relay

MAR Series Motor Auto-Restart Relay

Features: Monitors 120 vac 50/60hz control voltage. SPDT Output Relay, Pilot Duty B150, 360VA 10 amps @ 120 vac resistive. 8 pin and 11 pin plug-in models. Adjustable under-voltage and restart delay settings. Operating temperature of 0 deg C to […]

VCFP96M Multi-Meter

VCFP96M Multi-Meter

The VCFP96M is a complete single phase and three phase digital metering system suitable for low, medium and high voltage control panels, gensets, load banks, building management systems and power management systems. The VCFP96M can be used on single phase, three […]

GFD Series Ungrounded Systems Alert

GFD Series Ungrounded Systems Alert

The GFD Series Ungrounded Systems Alert from the ATC Diversified Electronics division of Marsh Bellofram Corporation is intended for the use on ungrounded systems to detect and indicate the phase of the first ground fault condition.

BFA Series Fuse Status Indicator

BFA Series Fuse Status Indicator

About the BFA Series Fuse Status Indicator from the ATC Diversified Electronics division of Marsh Bellofram: With nominal 3-phase line voltage applied, a flashing green NORMAL LED gives positive indication of a good fuse and integrity of the wire connection […]

UPA-200 Power Alert

UPA-200 Power Alert

The UPA-200 Power Alert from ATC Diversified Electronics reduces the risk of electrical arc flash by pre-verifying the electrical isolation from outside of an electrical panel.

PRA Series Phase Sequence Monitor

PRA Series Phase Sequence Monitor

For applications where only the phase sequence is critical, consider the PRA Series Phase Sequence Monitor.  

UPA-130 DIV 2 Class 1, Div. 2 FM Approved Power Alert

UPA-130 DIV 2 Class 1, Div. 2 FM Approved Power Alert

The UPA-130 DIV 2 Class 1, Div. 2 FM Approved Power Alert is approved for use in Hazardous Environments. Power Alert reduces the risk of electrical arc flash by pre-verifying the electrical isolation from outside of a control panel.

UPA-130S Solid ON Power Alert

UPA-130S Solid ON Power Alert

The UPA-130S Solid ON Power Alert from ATC Diversified Electronics reduces the risk of electrical arc flash by pre-verifying the electrical isolation from outside of a control panel. Hardwired to the circuit breaker or main disconnect, the UPA lights at […]

SPM Submersible Pump Monitor

SPM Submersible Pump Monitor

The SPM Submersible Pump Monitor from ATC Diversified Electronics is a dual function alarm relay designed to monitor shaft seal and stator temperature of a submersible pump motor, providing early warning of machinery failure to reduce downtime and maintenance costs. […]

UPA-130 Power Alert

UPA-130 Power Alert

The UPA-130 Power Alert from ATC Diversified Electronics reduces the risk of electrical arc flash by pre-verifying the electrical isolation from outside of a control panel. Hardwired to the circuit breaker or main disconnect, the UPA flashes whenever voltage is […]

SPM Temperature Switch Relay

SPM Temperature Switch Relay

The SPM Temperature Switch Relay is a non-volatile latching temperature switch relay which is used to monitor a normally-closed-low temperature switch.

SLU-600 Universal Phase Monitoring Relay

SLU-600 Universal Phase Monitoring Relay

The SLU-600 Universal Phase Monitoring Relay from the ATC Diversified Electronics division of Marsh Bellofram Corporation is a family of universal phase monitoring relays, designed to provide cost-effective protection from premature equipment failure or downtime caused by voltage faults or […]

SPM Dual Channel Seal Failure Alarm

SPM Dual Channel Seal Failure Alarm

The SPM dual channel seal failure alarm from ATC Diversified Electronics is a specialized control for monitoring the shaft seals of two submersible pump motors.

SLU-100 Series Universal Phase Monitoring Relay

SLU-100 Series Universal Phase Monitoring Relay

The SLU-100 series universal monitor relay is designed to provide cost-effective protection against premature equipment failure or downtime caused by voltage faults or untimely outages on three-phase systems (Delta and Wye).

UPA-100 Power Alert

UPA-100 Power Alert

The UPA-100 Power Alert reduces the risk of electrical arc flash by pre-verifying the electrical isolation from outside of a control panel. Hardwired to the circuit breaker or main disconnect, the UPA flashes whenever voltage is present.

SPM Series Single Channel Seal Failure Alarm

SPM Series Single Channel Seal Failure Alarm

The SPM Series Single Channel Seal Failure Alarm is a specialized control for monitoring the shaft seal of a submersible pump motor.