The Siemens 3VA1116-3EE36-0LC0 is a 3-pole IEC frame 160 molded case circuit breaker rated for line protection with a TM220 thermal-magnetic trip unit. 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.
What the ratings mean for your panel
The 25kA Icu at 415V is the maximum short-circuit current the breaker can safely interrupt once under fault conditions — that's the rating that determines if it holds on a high-fault panel. 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.
Mounting and integration
The breaker mounts on a DIN rail or panel-mount base in a standard enclosure. 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.