HONEYWELL RA889A1001 120V, 60 Hz Switching Relay with Spdt switching. The RA889A Switching Relay with 24 V controller provides intermediate switching of line- and low-voltage devices from a line- or low-voltage controller and is typically applied in Hydronic heating systems. ? High load switching capability.
? Troubleshooting LED.
? Push-to-test button.
? Replaceable transformer fuse.
? Long-life DC relay drive control technology.
? Relay for use with external 24 Vac or 24 Vdc supply, with line-voltage control, or with internal 24 V transformer supply.
? One model replaces many Honeywell models.
? Secondary of transformer protected by replaceable 1A automotive fuse.