TE Connectivity SCERW21ABA Temperature Switch

SCERW21ABA is a TE Connectivity Agastat time-delay relay, part of the SCE Series, used to introduce controlled delays in switching circuits. The relay provides a timed output action when its coil is energized, making it suitable for sequencing and delay applications in industrial automation. TE’s internal description for SCERW21ABA notes coil operating voltages of 120 VAC and 125 VDC, which indicates compatibility with common control architectures that use either AC mains or DC signals. The part carries TE internal number 1437463-4 and is cataloged under the Agastat brand within TE Connectivity’s relays portfolio. On TE’s product page the SCERW21ABA is listed as active but not currently available, reflecting its status in the catalog. Documentation associated with this model includes SCE Series Time Delay Relay engineering documentation and related datasheets used to specify installation and timing characteristics for the series. The SCERW21ABA designation confirms it as a time-delay relay rather than a temperature switch or a standard mechanical relay, ensuring buyers select a device built to provide predictable delay intervals in control circuits.