What this MCCB carries
The Siemens 3VA2110-5HN36-0AG0 is a SENTRON 3VA2 molded case circuit breaker rated for 100 A continuous at 40 °C, with a 3-pole configuration and a maximum interrupting capacity of 187 kA at 240 V. That interrupting rating drops to 121 kA at 415 V and 75.6 kA at 500 V, and to 3.7 kA at 690 V — so the breaker's fault-clearing capability is sized for the system voltage it sees. Rated insulation voltage is 800 V, and it carries a built-in auxiliary switch plus a trip alarm switch (1 aux + 1 trip alarm HP).
Panel fit and dimensions
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep. That 86 mm depth is the dimension that matters for enclosure depth clearance — it determines whether the breaker sits flush or protrudes past the gland plate in a standard 200 mm deep panel. The 105 mm width occupies three pole spaces on a DIN rail or mounting plate.
Thermal performance and power loss
The breaker holds its 100 A rating across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Maximum power loss is 10 W, which keeps heat dissipation manageable inside a sealed enclosure without forced ventilation. Operating temperature range is -25 °C to 70 °C; storage range extends from -40 °C to 80 °C.