The adjustable thermal trip band of 15–25 A lets you set the overload threshold to match the downstream conductor or load, not the breaker's maximum. At 240 V it interrupts 242 kA; at 415 V and 440 V it holds 187 kA; at 500 V it drops to 121 kA; at 690 V it still clears 3 kA.
Ground-fault and communication — what is built in
This 4-pole MCCB includes ground-fault monitoring via summation current formation on the L + N conductor. That means it senses the vector sum of phase and neutral currents — a common method for detecting leakage to earth without a separate GFCI module. It also carries a communication function and an other measurement function, which points to an electronic trip unit capable of reporting status or values over a bus. No undervoltage release is fitted, and the trip indicator is absent — the trip state is read from the handle position or communicated electronically.
Panel fit and physical integration
The 3VA2025-6KQ42-0AA0 measures 181 mm high by 140 mm wide by 86 mm deep.