Circuit breaker 3VA1 IEC Frame 160 Switching capacity class M Icu=55 kA @ 415 V 3-pole, system protection TM240, ATAM, In=20 A Overload protection Ir=14 A...20 A short-circuit protection Ii=8...16 x In Terminal connection Undervoltage release (UVR) 208-230 V AC 50/60 Hz 2 auxiliary switches HQ