It is designed for AC23B duty at 500 V, meaning it handles the switching of motor loads including starting and stopping under load — the most demanding utilization category for fuse-switch disconnectors.
Where it lives in the panel
This is an in-line design switch disconnector — the busbar runs straight through, so it fits in a standard distribution or motor control center cubicle without extra adapters. The NH00 fuse size is the smallest in the NH range, common for sub-feed protection up to 160 A. Manual operation with fuse monitoring (EFM 20) means it reports a blown fuse condition, which saves a maintenance walk when a single phase drops on a pump or compressor in a cold-storage freezer — the line stays cold, but you know which fuse to pull before the product thaws.
The product status is active. RoHS compliance is confirmed since 27 September 2019. REACH Article 33 duty-to-inform information is available on request.