What this 3VA MCCB brings to a panel
The 3VA1132-5EF32-0CC0: The interrupting capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. That's a lot of fault-clearing muscle for a 32 A frame — it means this breaker can sit upstream of a high-fault panel without needing a current-limiting fuse ahead of it, as long as the available fault current at its mounting point stays under those numbers. Rated insulation voltage is 800 V (Ui), so it's comfortable on 690 V line-to-line systems common in heavy industrial and mining installations. The front face carries IP40 protection — fine for a clean indoor panel, but not for washdown zones.
Thermal derating and real-world current
The 32 A rating holds steady up to 50 °C ambient. Above that, it steps down: 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C. If the panel runs hot — say next to a drive cabinet or in a non-climate-controlled enclosure — that derating curve tells you exactly how much headroom you lose. The operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C.
Auxiliary and undervoltage release
This version ships with an undervoltage release (UVR) and two auxiliary switches (HQ type). The UVR trips the breaker when control voltage drops below a threshold — standard for safety circuits that need to drop power on loss of the control supply. The auxiliary switches give remote status: open/closed indication back to a PLC or annunciator panel. The integrated auxiliary trip order code is 3VA9608-0BB24.
Footprint and panel fit
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep. That's a standard 3-pole MCCB footprint — it'll drop into a SENTRON panelboard or a DIN-rail adapter without surprises. No communication module, no ground-fault monitoring on this variant; it's a straight line-protection breaker with the UVR and aux contacts built in.