The Siemens SENTRON 3NJ6304-2AC0.-.... is a 4-pole switch disconnector with fuses, rated 160 A at AC23B 500 V with a breaking capacity of 55 kA at AC 500 V. It is designed for motor drive operating duty and includes EFM20 fuse monitoring. The unit accepts NH00 fuse links and is configured for in-line panel mounting.
Deployment Context
The in-line design and NH00 fuse accommodation suit this switch disconnector for motor branch circuits in industrial control panels where fused isolation and short-circuit protection are required. The AC23B rating covers switching of motor loads including starting, stopping, and inching. The 55 kA SCCR at 500 V provides headroom for high-fault installations without cascading upstream devices.