ABB 1SVR430183R0300 Timer Relay Module 110-240V

ABB 1SVR430183R0300 is an electronic timer relay module from ABB’s CT-APS family, designed as a star-delta timer for motor start sequencing in industrial control panels, offering precise ON- and OFF-delay timing to control contactor coils and auxiliary circuits. The unit provides two changeover contacts (2 SPDT) for switching loads and supports a broad supply range, including 24 V, 42–48 VAC/DC, and 110–240 VAC, making it adaptable to mixed-control architectures. Timing ranges and functionality are configurable; ABB documents describe ON-delay and OFF-delay timing with multiple ranges (commonly from 0.05 seconds up to 300 hours) within CT timers, enabling short-sequence delays for startup sequences or longer timers for process steps.