The Siemens 3NJ6313-3AB0.-.... is a SENTRON 3NJ63 switch disconnector with fuses in an in-line design, accepting NH1 fuse links rated up to 250 A. It is a 3-pole unit rated for AC23A duty at 500 V, with a making/breaking capacity of 120 kA at AC500 V — that is the fault current it can safely close onto and interrupt, which matters for motor-starting and high-fault installations. The built-in EFM 10 electronic fuse monitoring gives a signal when a fuse blows, saving a walk to the panel.
This part carries a current lifecycle stage and is classified as Product class C — manufactured to order, not a stocked shelf item. That means each unit is built when you order it, so lead time is project-specific and confirmed at quote. RoHS compliance is effective from 27 September 2019, and REACH Article 33 candidate-list information is available on request.
In-line design means the line and load connections are opposite each other, so plan for straight-through busbar or cable routing. The NH1 fuse carrier accepts standard 250 A NH fuse links. The EFM 10 monitoring module needs a separate control voltage — verify that before wiring. Mounting is on a mounting plate or DIN rail via the base adapter; the 3-pole block takes a standard 185 mm wide footprint for this class.
Compliance documentation
RoHS compliance is confirmed since 27 September 2019. REACH Article 33 duty-to-inform data is available per the current candidate list. The product group is 5862; the group code is P360 — these are Siemens internal classification codes used for catalog sorting and cross-reference lookups.