The Siemens 3VA1116-5ED32-0CH0 is a SENTRON 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 160 A continuously from 40 °C up to 50 °C before it starts to derate — 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. That thermal curve means you size the breaker for the actual panel ambient, not the nameplate; in a well-ventilated 40 °C enclosure it holds full rating.
Interrupting capacity and what it means for coordination
The interrupting ratings climb steeply with voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. That 187 kA figure at 240 V is the headline — it clears a massive fault without upstream fuses needing to open, which simplifies selective coordination on a 240 V distribution board. At 690 V the 17 kA still covers most industrial motor-drive feeds, but you verify the available fault current at that voltage before committing the BOM line.
Built-in auxiliaries and release
This variant ships with an undervoltage release (UVR) and a 2-auxiliary-switch plus 1-trip-alarm-switch HQ configuration. The UVR means the breaker drops out on loss of control voltage — standard for safety circuits where a downstream contactor or safety relay needs the breaker to open on undervoltage. The HQ trip alarm gives a separate signal contact for remote annunciation, so a PLC or SCADA sees the trip event without wiring through the aux switches.
Physical fit and panel integration
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep. That 70 mm depth is shallow enough to clear a standard 200 mm deep enclosure backplate with room for wiring gutters. The 76.2 mm width (3 inches) is the standard 3-pole MCCB footprint — it drops into the same mounting holes as other SENTRON 3VA frame sizes, so swapping from a lower-rated 3VA1110 or 3VA1112 in the same panel requires no drilling or bus-bar rework.