Siemens SENTRON 3VA1010-4ED42-0HH0 — 100 A, 4-Pole MCCB for Line Protection
The Siemens 3VA1010-4ED42-0HH0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. It carries a 100 A rating at 40 °C across all four poles, with the same current capacity maintained up to 50 °C before a gentle derate begins — 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. The 4-pole configuration makes it suitable for three-phase systems with a fully switched neutral, common in North American and IEC installations where the neutral requires overcurrent protection. Breaking capacity is the headline spec here: 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That 121 kA at 240 V means it can safely interrupt a fault current up to that level without the arc re-striking or the case rupturing — critical for high-fault installations close to a step-down transformer. The 75.6 kA at 415 V covers most European 400 V distribution busbars. At 690 V the 11.9 kA figure is still adequate for many industrial motor-control centers, but if your system has higher available fault current at that voltage, you'll need to coordinate upstream.
Fit and Integration — Panel Dimensions and Auxiliary Options
This MCCB measures 101.6 mm wide, 130 mm tall, and 70 mm deep — a standard SENTRON 3VA footprint that drops into the same panel cutout as other 100 A frame units in the family. The 70 mm depth (2.76 in) is shallow enough for compact enclosures; watch the wiring bend radius behind it, especially with 4-pole lug kits. Factory-fitted auxiliary options include 2 auxiliary switches plus 1 trip alarm switch (HQ type), and a shunt trip release (STL) for remote tripping. The shunt trip lets a safety PLC or E-stop circuit drop the breaker without a manual visit. No undervoltage release or ground-fault monitoring on this variant — those are separate order codes if your spec requires them. The trip indicator and voltage trigger are present, so you get local visual trip indication and a signal that the breaker has operated. Rated insulation voltage is 800 V, which covers the 690 V operating ceiling with margin. Maximum power loss is 25 W at rated load — factor that into enclosure thermal calculations if you're packing multiple breakers in a sealed box.