The Siemens SENTRON 3VA2140-7JQ36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 40 A continuous current, with a maximum frame rating of 480 A and a minimum setting of 60 A.
Breaking capacity — the real-world fault handling
This MCCB delivers 330 kA breaking capacity at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V.
Thermal performance and derating
That's useful in a crowded panel where internal temperatures run high.
The 3-pole block lands on a 105 mm wide busbar or lug kit, and the communication function means it can report status to a higher-level control system.
Ground-fault and monitoring
This variant includes summation-current ground-fault monitoring on the line conductors — it measures the vector sum of the phase currents to detect leakage to earth. No undervoltage release or voltage trigger is fitted, and there's no trip indicator.