SSAC ESDR450A1 Solid State Time Delay Relay Module

SSAC ESDR450A1 Solid State Time Delay Relay Module is a 120 VAC, 1 A solid‑state timer in the SSAC ESDR family from Littelfuse, designed as a recycling timer with no moving parts to reduce wear in automation circuits. It provides two independently adjustable delay periods: OFF delay from 1 to 100 seconds and ON delay from 0.1 to 10 seconds, with external adjustment options for setting both delays precisely. The device accepts 120 VAC input and delivers a 1 A output, suitable for switching moderate loads in general industrial control, sequencing, dwell timing, and automation tasks. Its solid‑state construction offers long life and silent operation compared with mechanical timers, making it well suited for applications where reliable timing cycles are required.