Time Delay Relays


Available in DIP switch selectable socket mount (plug-in) or DIN-rail mounted versions, Marsh Bellofram time delay relays (also known as TDRs or timers) are used to equip industrial machinery, conveyor belts, exhaust fans, heating systems, lubricators, and pump and motor controls with timed sequence delay, soft-start delay or auto-start functions for added machinery and equipment protection.


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 […]

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 […]