What it is and what it does
The Siemens 3VA1116-5EE32-0AD0 is a SENTRON molded case circuit breaker (MCCB) with a TM220 thermal-magnetic overcurrent release, designed for line protection in distribution panels. It's a 3-pole unit rated for a continuous current of 160 A at 40 °C ambient, with an interrupting capacity of 187 kA at 240 V AC.
What the ratings mean for fit
The 187 kA interrupting rating at 240 V is the headline number — it tells you this breaker can safely clear a fault of that magnitude without welding or rupturing, which is critical for high-fault-capacity service entrances or industrial feeders. At 415 V it still handles 121 kA, and at 690 V it's 17 kA. The TM220 release means the thermal element tracks overloads and the magnetic element trips on short-circuit; it's set at the factory for line protection, not motor or generator protection. The current rating holds at 160 A up to 50 °C ambient, then derates to 150 A at 70 °C — that 10 A drop matters when the breaker sits in a hot panel next to other heat sources. Plan your fill factor accordingly. Rated insulation voltage is 800 V, so the 690 V interrupting figures are within the insulation envelope.
Mounting and integration
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that drops into most DIN-rail or bolted-panel mountings. It comes with three auxiliary switches (HQ design) for remote status indication. No undervoltage release, no ground-fault monitoring, no communication function — this is a straight line-protection breaker, not a smart device.