Cutler-Hammer D12CRB22A Control Relay is an IEC-style industrial relay with four contacts: 2 normally open (NO) and 2 normally closed (NC), all driven by a 110–127 VAC coil, and it uses quick-connect terminals for fast wiring. The 2NO/2NC arrangement provides separate control paths, enabling simple interlock, sequencing, or multi-channel control within a single relay module. This makes it suitable for control circuits in automation panels and machinery where reliable signal switching is required, such as energizing a secondary relay, signaling controller logic, or routing control signals to multiple loads.
