What this 3VA1 MCCB carries
The Siemens 3VA1196-5GE42-0AA0-ZD00 is a 4-pole IEC frame 160 molded-case circuit breaker with breaking capacity class M — Icu=55 kA at 415 V. That rating means it can safely interrupt a fault current up to 55 kA without welding its contacts or failing catastrophically, which is the deciding spec for high-fault panel coordination in industrial distribution. It ships with a TM220 thermal-magnetic trip unit set for In=16 A, overload protection adjustable Ir=11…16 A, and a fixed short-circuit protection pickup Ii=20 × In. The 100 % N-conductor protection means the neutral pole is rated to carry full phase current — not derated — which matters for harmonic-rich loads or single-line-to-neutral faults in 4-wire systems.
Sourcing and lifecycle
The suffix ZD00 indicates a DC Power OEM variant for China, which includes a nut keeper kit. That OEM-specific build means the breaker is quoted to order; availability and current pricing are confirmed at quote time against an RFQ.
Where this breaker fits
The 3VA1 frame mounts on a DIN rail or panel plate in a standard IEC switchgear enclosure. At 16 A with a 55 kA interrupting rating, it is sized for main or feeder protection in low-voltage distribution boards where high fault current is available — typically downstream of a transformer or in a motor control center.