DIN Rail Utility Box, Complete Unit- Duplex Receptacle with Aux Contact, DIN Rail Box, 20A Duplex, Gray. Hubbell’s DIN Rail Utility Box offers a labor saving way to provide utility power to any control cabinet. Installing the DIN Rail Utility Box is as easy as snapping the box onto a 35mm DIN Rail and connecting the line, neutral and ground wires to the terminal block. Utility power for fans, lights, laptop computers, testers or any other power requirement. If load limiting is a concern, Hubbell’s “CB” version comes with a 5 Amp circuit breaker that provides over-current protection to make sure that large loads are not drawn from the DIN Rail Utility Box. All Hubbell DIN Rail Utility Boxes may be mounted either vertically or horizontally on the DIN Rail; the “H” version comes with the terminal block mounted for easy wiring when the DIN Rail Utility Box is mounted horizontally. It provide utility power to any control cabinet Optional auxiliary contacts for feed through capability Pre-wired "kits" are available for end-user customization 20A 125V, 2-Pole 3-Wire Grounding