MCCB for line protection with shunt trip
The Siemens SENTRON 3VA1010-3ED32-0HA0 is a 3-pole molded case circuit breaker (MCCB) rated 100 A at 40 °C, designed for line protection per its product designation. It carries a TM210 thermal-magnetic overcurrent release — the fixed thermal element and magnetic trip provide short-circuit and overload protection without electronic adjustment. The built-in shunt trip (STL) allows remote tripping via a control voltage, which matters when you need to integrate the breaker into an emergency-stop chain or a supervisory shutdown logic.
Breaking capacity across the voltage range
Breaking capacity is voltage-dependent: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. For a 400 V class panel, the 52.5 kA figure at 415 V gives you headroom above the typical 25–36 kA SCCR requirement for most industrial distribution boards — provided the upstream transformer and fault current study confirm the available fault current stays under that ceiling. The 690 V rating of 7.5 kA is lower; if your line side runs at 690 V, verify coordination with the upstream protective device.
Current derating and thermal limits
Rated 100 A continuously from 40 °C through 50 °C ambient. Above that, derate linearly: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, 91 A at 70 °C. If the breaker lives in a non-ventilated enclosure or next to heat-generating gear, use the 70 °C column (91 A) for the conservative load limit. Maximum power loss is 25 W — that heat must be managed inside the panel; adjacent devices should not be packed tighter than the manufacturer's spacing guidelines.
Physical fit and panel integration
Dimensions: 130 mm height, 76.2 mm width, 70 mm depth. The 76.2 mm (3 in) width is the standard 3-pole MCCB footprint for this class — it fits the same DIN-rail or mounting-plate hole pattern as other SENTRON 3VA frame breakers. Depth of 70 mm (2.76 in) is shallow enough for a 200 mm deep enclosure with room for wiring gutters. No trip indicator on the front; the shunt trip is the only auxiliary release. Insulation voltage rated 800 V, which covers 480/277 V and 600 V systems with margin.