Siemens 3VA2116-5KP42-0AA0 — 160 A SENTRON MCCB with ETU850 Trip Unit
The Siemens 3VA2116-5KP42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current, configured as a 4-pole unit for line protection. It carries an ETU850 electronic overcurrent release, giving you adjustable long-time, short-time, instantaneous, and ground-fault protection curves — the kind of selectivity headroom you need for main or feeder breakers in a distribution panel. Breaking capacity is 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The 690 V figure is low enough that you need to verify coordination if that's your service voltage; at typical 400/415 V distribution levels the 121 kA SCCR covers most utility-fault scenarios without cascading upstream. Thermal derating is flat across the board: 160 A from 40 °C through 70 °C ambient. That means no de-rate calculation for a warm panel — the breaker delivers its full nameplate at any temperature inside its operating range of -25 °C to 70 °C.
Lifecycle & Sourcing
Compliance documentation is standard for Siemens SENTRON: the breaker is designed to meet IEC 60947-2 and UL 489 requirements. RoHS and REACH declarations of conformity are available on request. The IP40 protection class on the front means it is suited for enclosed panel mounting where the enclosure itself provides the environmental seal.
Integration & Physical Fit
Dimensions are 181 mm high, 140 mm wide, and 86 mm deep. The 140 mm width is the 4-pole frame width — a standard 4-module MCCB footprint for DIN-rail or panel-mount backplate installation. Verify the busbar or cable-entry clearance against the 86 mm depth; it fits most distribution boards without a deep enclosure. The ETU850 trip unit includes a communication function, enabling integration with higher-level monitoring or energy-management systems. No undervoltage release or voltage trigger is fitted as standard; those are field-addable accessories if your safety circuit requires a shunt or UVR. Rated insulation voltage is 800 V, so the breaker is electrically rated for 690 V systems even though the interrupting capacity at that voltage is limited. Maximum power loss is 25.5 W at rated current — account for that heat in the enclosure thermal calculation.