What this MCCB carries
The Siemens SENTRON 3VA1010-4ED42-0DH0 is a 4-pole molded case circuit breaker (MCCB) rated for 100 A at 40 °C ambient, designed for line protection in distribution panels. The 100 A rating holds steady from 40 °C up to 50 °C, then derates to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C — useful to check against your enclosure's internal temperature rise. Breaking capacity runs 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. That's a high-interrupting rating for the 240 V and 415 V levels — expect it to hold fault clearance on most industrial service entrances and sub-distribution boards without cascading upstream. Rated insulation voltage is 800 V, so the breaker is rated for 690 V line-to-line systems with margin. The 4-pole construction handles three-phase-plus-neutral or three-phase with a switched neutral, common in North American and European panel builds.
Auxiliaries and releases built in
This variant ships with an undervoltage release (UVR) and a factory-fitted auxiliary switch block: 2 auxiliary switches plus 1 trip alarm switch (HQ configuration). The UVR means the breaker drops out when control voltage falls below the release threshold — standard for emergency-stop and undervoltage protection schemes where you want the load disconnected on power loss. A trip indicator is present on the front face, giving a visual flag when the breaker has tripped on fault rather than manual open. No ground-fault monitoring, no communication module — this is a straight line-protection MCCB with basic signaling.
Panel fit and dimensions
Mounts on a standard DIN rail or direct-panel mount via the 3VA base. Dimensions: 130 mm height, 101.6 mm width (4 inches), 70 mm depth. The 101.6 mm width is the standard 4-pole MCCB footprint — it occupies the same slot as any other SENTRON 3VA 4-pole unit, so a panel laid out for a 3VA1110-5ED36-0AC0 accepts this breaker mechanically without rewiring the bus bars.