Siemens SENTRON 3VA1116-5EF32-0AC0 — 160 A MCCB with TM240 Release
The Siemens 3VA1116-5EF32-0AC0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current (Iu) across a 3-pole configuration, with a TM240 thermal-magnetic overcurrent release. Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — figures that define the maximum fault current it can safely clear at each voltage level without upstream coordination failure.
What the Ratings Mean for Your Panel
The 160 A rating holds flat from 40 °C through 50 °C, then derates to 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C. In a 50 °C panel — common for enclosed switchgear — you still get the full 160 A; above that, the thermal curve governs the usable load. The 187 kA SCCR at 240 V means this breaker can interrupt faults up to that level without cascading upstream — critical for high-fault installations like transformer secondaries or large motor control centers. The TM240 release is a fixed thermal-magnetic trip unit; the long-time delay (tr max) is adjustable to 1 second, letting you coordinate with downstream feeders.
Panel Fit and Auxiliary Configuration
Dimensions are 70 mm deep, 76.2 mm wide, and 130 mm high — a standard 3-pole MCCB footprint that mounts on a DIN rail or panel-mount adapter in a distribution board. It ships with 2 HQ auxiliary switches (form C contacts) for status feedback to a PLC or indication lamp. No undervoltage release, no shunt trip, no ground-fault monitoring, and no communication module are fitted on this variant — it is a straight line-protection breaker. The rated insulation voltage is 800 V, and the operating temperature range spans -25 °C to 70 °C.