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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | SSAC / Littelfuse |
| Manufacturer Product Number | TRS24D2Z1 |
| Description | TDR; 0.05...1 s; Onboard knob; 24/28V DC; Tolerance ±5%; 1C SPDT; Single Shot |
| Datasheet | Download Datasheet |
The Littelfuse SSAC TRS24D2Z1 is a single shot timer for 24/28 V DC, with isolated SPDT relay contacts rated 8 A resistive at 120/240 V AC. Its delay is adjustable from 0.05 to 1 seconds with its onboard knob.
Input voltage must be applied before and during timing. A momentary or maintained closure of the initiate switch (leading-edge triggered) energizes the output for the set time; opening or reclosing the switch during timing has no effect. Applying input voltage with the switch closed energizes the load and starts the delay. It resets when the delay is complete and the switch is open; loss of input voltage resets the delay and the output.
Output: 1C SPDT relay, 8 A resistive at 120/240 V AC; 1/3 hp at 120/240 V AC, tolerance ±5%. Repeat accuracy: ±2%. Setting accuracy: ±5% setting accuracy; ±5% over temperature and voltage. Reset time: 75 ms. Supply tolerance: -15% / +20% of nominal; 50/60 Hz. Power: 3.25 W max. Life: 10,000,000 operations mechanical, 1,000,000 electrical.
It plugs into an 8 pin octal socket (OT08PC or P1011-6 (UL listing)). It operates from -20 to +65 °C and stores from -30 to +85 °C. Approvals: UL Listed with OT08-PC / RB08-PC / OT11-PC / RB11-PC socket.
| Category | |
| Manufacturer | SSAC / Littelfuse |
| Model | TRS |
| Output Technology | Electromechanical Relay |
| Timing Function | Single Shot |
| Delay Time | 0.05...1 s |
| Timing Adjustment Method | Onboard knob |
| Options | Tolerance ±5% |
| Timing Initiate Method | Control Switch |
| Contact Configuration | 1C SPDT |
| Output Rating | 8 A resistive at 120/240 V AC; 1/3 hp at 120/240 V AC |
| Input Voltage | 24/28V DC |
| Termination Style | Plug In |
| Mounting Type | Socketable |
| Socket Family | 8 Pin Octal |
| Required Socket | OT08PC or P1011-6 (UL listing) |
| Operating Temperature | -20...+65 °C (-30...+85 °C) |
| Approvals | UL Listed with OT08-PC / RB08-PC / OT11-PC / RB11-PC socket |
| Setting Accuracy (%) | ±5% setting accuracy; ±5% over temperature and voltage |
| Repeatability (%) | ±2% |
| Recovery Time (ms) | 75 |
| Mechanical Life | 10,000,000 cycles (1,000,000 cycles) |
| Input Operating Range | -15% / +20% of nominal; 50/60 Hz |
| Rated Power | 3.25 W max |