SENTRON 3VA2110-5KP32-0JA0 — MCCB for Line Protection
The Siemens SENTRON 3VA2110-5KP32-0JA0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection, rated at 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V, so it handles high-fault utility feeds and downstream coordination in industrial distribution panels. The unit includes a shunt trip (STL) auxiliary release and a communication function, making it suitable for remote-trip and monitored circuits.
What the Ratings Mean for Your Panel
The 100 A continuous rating holds flat from 40 °C through 70 °C — that is a full thermal class 100 frame that does not force a derate in a warm enclosure. The 187 kA at 240 V is the maximum short-circuit current the breaker can safely interrupt at that voltage; at 690 V the same unit still clears 3.7 kA, which covers most motor-circuit fault levels but should be checked against the available fault current at the point of installation. The 800 V rated insulation voltage tells you the internal creepage and clearance are designed for 690 V systems with margin. The shunt trip (STL) release lets a remote signal (e.g., from a safety relay or PLC) open the breaker independently of the overcurrent mechanism — useful for emergency-off or interlock circuits.
Mounting and Integration
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep — a standard SENTRON 3VA frame that fits the same panel cutout and bus-bar spacing as other 100 A 3-pole units in the series. The communication function suggests a plug-in module or remote indication capability; verify the specific protocol (PROFIBUS, PROFINET, Modbus) against your control system. The shunt trip requires a separate control voltage — confirm polarity and voltage rating from the nameplate before wiring.