What it is and what it does
The ABB AFS26Z-30-22-30 is a 3-pole safety relay with a 2NO2NC contact configuration, powered by a 24 VDC coil. It is designed for use in safety circuits where redundant, monitored switching of safety-related loads is required — typical in emergency stop, light curtain, or two-hand control applications.
Contact configuration and deployment
Three poles with two normally-open and two normally-closed contacts give the AFS26Z-30-22-30 flexibility for dual-channel safety inputs and feedback loop monitoring. The 24 VDC coil is standard for control panels with a 24 VDC bus; verify coil suppression polarity if driving from a PLC solid-state output.