SENTRON 3VA1132-3EF36-0DC0 — 32 A MCCB with Undervoltage Release
Breaking capacity reaches 75.6 kA at 240 V AC, stepping down to 52.5 kA at 415 V and 32 kA at 440 V — enough to handle high-fault utility feeds in industrial distribution panels.
The 32 A rating holds flat from 40 °C to 50 °C, then gently tapers to 30 A at 70 °C — no surprise derating curve to chase in a warm enclosure.
At 76.2 mm wide × 130 mm high × 70 mm deep, this MCCB fits standard 3-pole MCCB panel cutouts and mounts via screw-clamp or optional DIN-rail adapter. The undervoltage release (UVR) is wired to a separate control voltage — typically 24 V DC or 230 V AC — and drops the breaker if that voltage falls below dropout threshold, which is the standard scheme for emergency-stop chains or upstream contactor interlocks. The two HQ auxiliary switches provide form-C (changeover) contacts for remote status: one for breaker open/closed, one for tripped indication.