4-pole IEC frame 160 MCCB with TM220 trip
The Siemens 3VA1132-5GE42-0AA0-ZD00 is a 4-pole IEC frame 160 molded case circuit breaker with a TM220 thermal-magnetic trip unit. It carries a breaking capacity class M rating of Icu=55kA at 415V, meaning it can safely interrupt fault currents up to that level on a 415V three-phase system without welding or rupturing. The In=32A continuous rating and adjustable overload protection Ir=22A...32A let you fine-tune the thermal pickup to match the protected conductor or load. Short-circuit protection is fixed at Ii=10 x In (320A magnetic pickup), which is typical for line protection on distribution feeders rather than motor starting. The 100% N-conductor protection means the neutral pole is fully rated and will trip with the phase poles — important for 4-wire systems where neutral overcurrent must be cleared.
Sourcing and lifecycle
The lifecycle stage for this order code is listed as current, so it remains in the active Siemens catalog and is not subject to a last-time-buy or phase-out notice at this time. Availability and current pricing are confirmed at quote time against an RFQ through independent distribution channels. The ZD00 suffix indicates a customer-specific version — in this case a nut keeper kit for DC Power OEM in China. That means the base breaker (3VA1132-5GE42-0AA0) is a standard Siemens catalog item, but the full code with suffix is a configured variant. Verify the OEM-specific hardware is what your BOM calls for before ordering.