It carries a breaking capacity class N with Icu=25kA at 415V, a rated current In=160A, adjustable overload protection Ir=112A to 160A, and fixed short-circuit protection Ii=10 x In. The unit includes a 24V DC universal release accessory for shunt or undervoltage trip applications, plus two auxiliary switch changeover contacts. Clamp terminals handle the power connections.
The TM220 thermal-magnetic trip gives you adjustable thermal overload (Ir) from 112A to 160A, so you dial in the exact motor or feeder protection without swapping trip units. Fixed magnetic pickup at 10x In (1600A) handles instantaneous short-circuit protection. The 24V DC universal release lets you integrate remote tripping from a safety PLC or emergency-stop circuit — it's a common add-on for coordinated shutdown schemes.
Clamp terminals accept copper or aluminum conductors — strip length and torque per the terminal marking. The 24V DC release and auxiliary switches wire into the control circuit separately from the power path; verify polarity on the release coil before energizing.