SENTRON 3VA1140-6EF32-0JA0 — 40 A MCCB with shunt trip, line protection
It carries a 40 A continuous rating at 40 °C ambient, holds that rating through 50 °C, and derates to 37 A at 70 °C — so in a warm enclosure you lose only 3 A off the nameplate. Breaking capacity is 220 kA at 240 V AC, 154 kA at 415 V, and 121 kA at 440 V — numbers that put it in the high-interrupting category for industrial mains distribution. The shunt trip lets a remote safety relay or emergency-stop circuit open the breaker independently of the overload mechanism — standard for E-stop chains and undervoltage protection schemes.
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a 3-pole MCCB footprint that fits standard Siemens SENTRON mounting bases and busbar systems.