SENTRON 3VA2140-6HL32-0AA0 — 40 A MCCB for Line Protection
The Siemens SENTRON 3VA2140-6HL32-0AA0 is a 3-pole molded case circuit breaker rated for a continuous current of 40 A, with an insulation voltage of 800 V and a maximum breaking capacity of 242 kA at 240 V. Designed for line protection, it carries the ETU320 overcurrent release and holds its 40 A rating across the full ambient range from 40 °C to 70 °C — no derating needed up to the enclosure limit. The front face is rated IP40, suitable for standard panel mounting where drip or tool ingress is controlled.
Breaking Capacity Across Voltages — SCCR Headroom
The interrupting rating climbs to 242 kA at 240 V, holds at 187 kA for 415 V and 440 V, drops to 121 kA at 500 V, and settles at 3.7 kA at 690 V. That 187 kA at 415 V gives substantial headroom for most low-voltage distribution panels in industrial and commercial builds — the breaker clears a bolted fault well before upstream devices need to coordinate.
Dimensions and Panel Fit
The 3VA2140-6HL32-0AA0 measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard 3-pole MCCB footprint that fits the SENTRON 3VA mounting base and busbar system.