What this 3VA2 MCCB delivers on the panel
The Siemens 3VA2040-6HM36-0AA0 is a SENTRON molded case circuit breaker rated for 40 A continuous current across its full ambient range — it holds 40 A from 40 °C through 70 °C without derating, which simplifies panel layout when the breaker sits near warm drives or transformers.
Footprint is 105 mm wide × 181 mm tall × 86 mm deep — standard 3-pole MCCB envelope for a 40 A frame. Bolts onto the mounting plate; line and load lugs accept copper or aluminum conductors sized for the 40 A rating.
Interrupting ratings: 242 kA at 240 VAC, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V.
Ground-fault and monitoring
This variant includes summation-current ground-fault monitoring on the L conductors — it measures vector sum of the phase currents to detect leakage to ground. No separate voltage trigger or communication function on this order code.