3WL1010-3.A21-....Brand: SiemensMPN: 3WL1010-3.A21-....fixed-mounted non-automatic air circuit breakers 4-pole, frame size 0, IEC N conductor on the right In=1000A to 690V, 50/60Hz ac Icu=66kA at 415V Icu=50kA at 50Request a quote