B-Line Eaton series electrical accessories, Used to add a receptacle/outlet inside enclosures, Clip for 35 mm DIN rail, Electrical accessories, USA/Ca

The ER1 is a DIN rail mounted receptacle accessory, used to add a receptacle/outlet inside an enclosure so you can power a laptop, light, fan, or service tool from within the panel instead of running a cord in from outside.

If that rail is standard 35 mm DIN, yes. The ER1 clips directly to 35 mm DIN rail, so it snaps on beside your breakers and terminal blocks with no drilling into the enclosure wall. Panels built on other rail profiles need a different mounting arrangement.

Yes. The ER1 is built for USA/Canada service, so it takes standard North American plug patterns. For panels being shipped to Europe or Asia you would need a receptacle module matched to that region's plug standard instead.

A rail mounted unit like the ER1 keeps the enclosure envelope intact, which matters when the box is rated for a wet or dusty location and you do not want to compromise it with a field cutout. It also lets you add or relocate the outlet later by unclipping it from the 35 mm rail. Cutting the wall for a duplex box makes sense when you need the outlet accessible from outside the enclosure with the door closed.

Order it as Eaton B-Line ER1. That is the single model for this receptacle accessory, so there is no finish, voltage, or length suffix to specify on the order.