Siemens 3VA1010-3ED32-0JH0 — 100 A SENTRON MCCB for Line Protection
The Siemens 3VA1010-3ED32-0JH0 is a SENTRON 3-pole molded case circuit breaker (MCCB) designed for line protection in distribution panels. It carries a rated current of 100 A at 40 °C ambient, with no derating needed up to 50 °C — still 100 A at that temperature (cites:,). Breaking capacity reaches 75.6 kA at 240 V AC, stepping down to 52.5 kA at 415 V and 32 kA at 440 V (cites:,). The unit includes a shunt trip release (STL) and provisions for two auxiliary switches plus one trip alarm switch HQ, factory-fitted (cites:,).
What the Ratings Mean for Your Panel
The 100 A continuous rating at 40 °C is the thermal baseline for sizing feeder circuits in a 40 °C enclosure environment. Above 55 °C you derate linearly — 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, 91 A at 70 °C (cites:,). The 75.6 kA interrupting rating at 240 V tells you this MCCB can safely clear a fault up to that level without upstream devices needing to coordinate — important for high-fault panels near transformers. At 690 V the breaking capacity is still 7.5 kA (cites:,). Rated insulation voltage is 800 V, so the internal clearances support 690 V line-to-line applications (cite:). Maximum power loss is 25 W per pole — factor that into enclosure thermal rise calculations (cite:).
Integration and Mounting
The 3VA1010-3ED32-0JH0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a compact 3-pole footprint that fits standard Siemens SENTRON panel mounting (cites:,). It accepts screw or plug-in terminations; the shunt trip release and auxiliary switch block are pre-installed, so no field assembly of those accessories is needed. Operating temperature range is -25 °C to +70 °C; storage range -40 °C to +80 °C (cites:,).