Integrator's spec recap — 3VA1032-4ED36-0CC0
The Siemens 3VA1032-4ED36-0CC0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. It carries a 32 A rating at 40 °C ambient, holding that rating flat through 50 °C before a mild derate to 30 A at 70 °C — useful for warm enclosures without oversizing. Breaking capacity reaches 121 kA at 240 V AC and 75.6 kA at 415 V, so it handles high-fault utility feeds or transformer secondaries. The 3-pole frame includes an integrated undervoltage release (UVR) and provisions for two HQ auxiliary switches, making it a drop-in for safety circuits that need loss-of-voltage tripping.
Breaking capacity across voltages
Rated insulation voltage is 800 V, and the interrupting ratings span the common industrial voltages: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. At 690 V the 11.9 kA figure is the limiting case — confirm available fault current on 690 V systems before specifying.
Panel fit and mounting
The MCCB measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard SENTRON 3VA frame footprint that fits existing DIN-rail or screw-mount panel layouts. The 70 mm depth leaves clearance behind a 200 mm deep enclosure door for wiring and auxiliary wiring.