It carries a rated current of 100 A at 40 °C ambient, with no derating needed up to 50 °C — at 55 °C it still holds 98 A, and at 70 °C it delivers 91 A, so it handles warm enclosures without a frame-size jump. Breaking capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that cover most commercial and light-industrial fault levels. At 500 V and 690 V it still interrupts 7.5 kA, so it can serve 480Y/277 V panels with adequate SCCR headroom. The trip indicator is present, so a quick visual check confirms whether the breaker tripped on fault versus being manually opened.
Sizing and panel fit
Dimensions are 130 mm high, 76.2 mm wide, and 70 mm deep — a standard SENTRON 3VA frame footprint that drops into existing DIN-rail or panel-mount cutouts without re-drilling. It is a straightforward thermal-magnetic MCCB with the UVR as the only auxiliary release.