Industrial PRB43 TDS120ALD Time Delay Relay 120 VAC

The Littelfuse Digi-Set SSAC TDS120ALD time-delay relay (120 VAC coil) is a plug-in, 11-pin DPDT device designed for precise single-shot timing in industrial control circuits. When the initiate input is energized, the internal digital timer starts on the input's leading edge and the output relay remains energized for a programmable interval from 1 to 1023 seconds (in 1-second steps). The timing is independent of input state changes during the timing window, so opening or re-energizing the input does not alter the countdown. The DPDT (two Form C) contacts are rated at 10 A at 120/240 VAC, making it suitable for sequencing and interlock tasks in control panels. The unit integrates digital timing circuitry with isolated contacts in an 11-pin plug-in package, aligning with Littelfuse's SSAC Digiset line and its role in compact, reliable automation timers.