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The SCHNEIDER ELECTRIC ABR7S21 is an electromechanical plug-in general purpose relay rated at 5 amps and 24 volts DC. It uses a plug-in terminal configuration for straightforward installation and replacement in compatible relay sockets. This relay is designed for control circuit switching in industrial, commercial, and building automation applications. It meets IEC 60947-1 and IEC 60947-5-1 standards, confirming suitability for low-voltage control switching duties. Licensed electricians and controls technicians are the typical installers, working with 24-volt control panels, automation panels, and building management systems.
This relay is suited for use in control panels and automation enclosures where a compact, socket-mounted switching device is needed. Its plug-in design supports quick field replacement without rewiring. Typical applications include HVAC control panels, industrial automation circuits, and building management system panels that use standardized relay sockets. The compact form factor fits in tight panel layouts where space is limited.
Designed as an OEM-style plug-in general purpose relay for use in compatible relay sockets rated for 24 VDC control circuits.
Installation should be performed by a licensed electrician or qualified controls technician. De-energize the control panel and verify the circuit is de-energized before removing or installing the relay. Confirm the socket type matches the relay footprint before insertion. Follow applicable NEC guidelines and local electrical codes for control circuit wiring and panel work.
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