What this 4-pole 100 A MCCB does on the line
The Siemens 3VA2010-6KQ46-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current at ambient temperatures from 40 °C through 70 °C without derating — the full-scale value holds across the entire operating range, so you don't have to recalculate for a warm panel. Four poles handle three-phase plus neutral or a second protected phase, with a rated insulation voltage of 800 V. Breaking capacity runs 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V — the 240 V figure is the highest in this frame class, sized for high-fault utility or transformer-fed service entrances where the available fault current is well above 100 kA.
Built-in communication and ground-fault monitoring
This MCCB includes a communication function and an other measurement function, plus summation-current ground-fault monitoring on the L + N conductor — meaning it can report status and trip events to a higher-level control system and detect leakage currents without a separate external relay. The undervoltage release is not fitted as standard; if you need UVR for your safety circuit, that's an accessory add-on.
Current production — no lifecycle concern
Power loss is 13.5 W maximum at rated load — a modest figure for a 100 A frame that keeps internal temperature rise manageable inside a crowded enclosure.
Panel fit and environmental limits
Dimensions are 181 mm high, 140 mm wide, 86 mm deep — the 86 mm depth is the front-to-back projection behind the panel door, which matters when you're laying out gland plates or busbar chambers. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C, so it can sit in an unheated warehouse or a hot rooftop enclosure.