Mitsubishi Electric No-Fuse Breaker NF400-CA

A 400-amp, 3-pole molded case circuit breaker from Mitsubishi Electric, the NF400-CA carries the manufacturer's designation "No-Fuse Breaker" and is rated for AC 500V service. The nameplate identifies it as conforming to JIS, IEC, BS, and NEMA standards. Interrupting capacity ratings are listed as 20kA asymmetrical and 18kA symmetrical at AC 460V, and 35kA asymmetrical and 30kA symmetrical at AC 220V. Under NKE 4305 supplemental ratings, interrupting capacity is 20kA at AC 500V and 30kA at AC 250V. The ampere rating is fixed at 400A as shown on the front face indicator window. The breaker is a 3-pole configuration with a push-to-trip test button and a trip indicator visible on the front face. Bus bar-style load terminals with bolt-hole lugs are present on the output side. An auxiliary switch wiring pigtail is attached to the unit. The device carries catalog reference LN308N986-2 and was manufactured in Japan by Mitsubishi Electric Corp. This NF400-CA is commonly found as the main circuit breaker in Mazak and other Japanese CNC machine tool electrical enclosures. The unit is identified as A88 series on the nameplate.

Stock # 0226-709