SENTRON 3VA2 MCCB for Motor Protection
Interrupting Ratings and Selectivity
The 3VA2163-5MN32-0JH0 delivers 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The sharp drop at 690 V is typical for this frame size — the arc extinction limits at higher voltage mean this breaker is not a candidate for 690 V motor circuits unless the available fault current is verified below 3.7 kA. At 415 V the 121 kA figure provides headroom for most industrial distribution panels, supporting selective coordination with downstream 18 kA or 25 kA MCCBs.
