What this MCCB delivers
At 240 V it interrupts 52.5 kA; at 415 V that figure holds at 32 kA, and at 440 V it still clears 13.6 kA — meaning this breaker handles high-fault scenarios common in industrial distribution panels without needing an upstream current-limiting fuse. The thermal-magnetic curve stays flat across the 40 °C to 50 °C band — still rated 20 A — then derates gradually to 18 A at 70 °C.
The 3VA1020-2ED36-0JH0 measures 76.2 mm wide, 130 mm tall, and 70 mm deep — a standard 3-pole MCCB footprint that drops into a SENTRON panelboard or a separate DIN-rail adapter. That gives you two independent signal paths for status feedback (open/closed) and a dedicated alarm contact that changes state only on a trip event — useful for remote annunciation without tying up a PLC input on the breaker's main position.
Auxiliary release and accessories
The integrated auxiliary trip accessory is order code 3VA9688-0BL32 — that's the part number to add if you need a separate undervoltage release or additional shunt trip capability.