Siemens 3VA1 IEC frame 100 circuit breaker, breaking capacity class B, Icu=16kA @ 415V, 3-pole, line protection TM210, FTFM, In=50A, Ir=50A fixed, Ii=10 x In, nut keeper kit, 4 auxiliary switches HQ.
The In=50A overload setting is fixed at Ir=50A, and the short-circuit pickup is fixed at Ii=10 x In (500A magnetic). The 16kA rating at 415V puts it in breaking capacity class B, meaning it offers a higher interrupting rating than the class A baseline for this frame size.
The 3-pole form factor handles three-phase loads up to 50A continuous.
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The breaking capacity is Icu=16kA at 415V AC under IEC 60947-2, which is the standard for industrial circuit-breaker performance. This is the maximum fault current it can safely interrupt at that voltage.
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