Industrial 521A-E AC Coil Relay Normally Open Contacts

CONRAC's 521A-E is an industrial AC coil relay with normally open contacts, designed to switch AC loads from a compact control circuit in harsh environments. It is specified to handle up to 20A at 115V, providing a reliable interface between low-power control signals and higher-current equipment in control panels, machines, and automation setups. The normally open contacts close when the coil is energized, enabling simple on/off control and allowing designers to implement load switching without continuous energization. Built for industrial use, the 521A-E fits standard relay sockets and control architectures where dependable, high-current switching of 115V AC loads up to 20A is required.