Siemens SENTRON 3VA1010-4ED42-0HH0 — 100 A, 4-Pole MCCB for Line Protection
It carries a 100 A rating at 40 °C across all four poles, with the same current capacity maintained up to 50 °C before a gentle derate begins — 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. The 4-pole configuration makes it suitable for three-phase systems with a fully switched neutral, common in North American and IEC installations where the neutral requires overcurrent protection. Breaking capacity is the headline spec here: 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
Fit and Integration — Panel Dimensions and Auxiliary Options
This MCCB measures 101.6 mm wide, 130 mm tall, and 70 mm deep — a standard SENTRON 3VA footprint that drops into the same panel cutout as other 100 A frame units in the family. The 70 mm depth (2.76 in) is shallow enough for compact enclosures; watch the wiring bend radius behind it, especially with 4-pole lug kits. The shunt trip lets a safety PLC or E-stop circuit drop the breaker without a manual visit. The trip indicator and voltage trigger are present, so you get local visual trip indication and a signal that the breaker has operated.