Siemens 3VA2 IEC frame 160, breaking capacity class M, Icu=55kA @ 415V, 3-pole, motor protection ETU350M, LSI, In=100A, overload Ir=40A...100A, short-circuit Isd=3...15 x Ir, Ii=15 x In, clamp connection, undervoltage release (UVR) 24V DC.
Overload protection (Ir) is adjustable from 40A to 100A, matching the In=100A frame rating. Short-circuit protection (Isd) is set between 3 and 15 times Ir, and the instantaneous pickup (Ii) is fixed at 15 times In. The undervoltage release (UVR) operates on 24V DC — if the control voltage drops, the breaker trips, which is standard practice for emergency-stop or safety-related disconnection circuits.
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The description is: circuit breaker 3VA2 IEC frame 160 breaking capacity class M Icu=55kA @ 415V 3-pole, motor protection ETU350M, LSI, In=100A overload protection Ir=40A...100A short-circuit protection Isd=3...15 x Ir, Ii=15 x In clamp connection undervoltage release (UVR) 24V DC.
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