The 3VM1132-5GD42-0AA0: This MCCB delivers 187 kA at 240 V AC, 121 kA at 415 V AC, 76 kA at 440 V AC, and 17 kA at 500 V AC. The 187 kA at 240 V covers high-fault scenarios in North American 277/480 V panels when used on the 240 V leg.
At 55 °C it derates to 31 A, at 60 °C to 31 A, at 65 °C to 30 A, and at 70 °C to 30 A. For a panel running at 55 °C ambient, the continuous load should not exceed 31 A. Maximum power loss is 10.6 W.
Physical integration and protection
Dimensions are 70 mm deep, 101.6 mm wide, 130 mm high — a standard 4-pole MCCB footprint that fits most Siemens SENTRON distribution panels and switchboards. The N-conductor protection is rated at 100%, so the neutral pole is fully rated for the same 32 A as the phase poles — no derating needed on the neutral path.