What this 100 A 4-pole MCCB is and where it fits
The Siemens SENTRON 3VA2110-5HL46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, designed for line protection in industrial distribution panels. It uses an ETU320 electronic trip unit, which gives you adjustable overload and short-circuit protection curves rather than a fixed thermal-magnetic response — useful when you need to coordinate with downstream breakers or motor starters. The 100 A rating holds flat from 40 °C through 70 °C ambient, so no derating headache in a warm enclosure. Breaking capacity is 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — that covers most North American and European distribution voltages with headroom for high-fault locations like substation feeders or large motor control centers.
Panel fit and integration notes
Dimensions are 181 mm high, 140 mm wide, 86 mm deep — a standard 4-pole MCCB footprint that drops into most SENTRON 3VA mounting bases and busbar systems. Front IP40 protection means it is suited for enclosed distribution boards where the panel door provides the environmental seal. The ETU320 release supports line protection only — no ground-fault monitoring, undervoltage release, or communication function on this variant. If you need those, you would step up to a 3VA2 with a different suffix.