The Siemens 3VA1196-5EE42-0AA0-ZD00 is an IEC frame 160 molded-case circuit breaker from the 3VA1 series, rated for line protection with a TM220 thermal-magnetic trip unit. It carries a 55 kA Icu at 415 V — breaking capacity class M — which means it can safely interrupt fault currents up to that level on a 415 V three-phase system without cascading to upstream devices. That's the spec that governs selectivity coordination in a distribution panel.
Ratings and fit
Rated at In=16 A with adjustable overload protection Ir spanning 11 A to 16 A, and fixed short-circuit protection Ii set at 20 x In (320 A). The 4-pole configuration with an unprotected N conductor suits it for three-phase line protection where the neutral is not switched. The nut keeper kit is a panel-builder detail — keeps the mounting hardware captive during assembly, which matters on a high-vibration OEM build destined for DC Power applications in China.
Lifecycle and sourcing
Lifecycle stage is listed as current — Siemens has not flagged this order code for phase-out. For a critical-spare holding or a BOM line that needs a known part number, this one is still in the active catalog. Sourced to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.