Description
About this item
For indoor or outdoor use with specific transfer switches, manual transfer panels and generator-ready load centers
Outdoor, raintight NEMA 3R non-metallic power inlet box
Maximum generator running watts: 12,500
Maximum generator input: 50A@125/250VAC
Intended for use with 8 AWG 75 degrees C insulated wire
From the manufacturer

About Reliance Controls Corporation:
Since 1909, Reliance Controls Corporation has contributed more innovations than any other single manufacturer and has been awarded over 85 patents on manual transfer switches, time switches and accessories. Reliance Controls Corporation specializes in the manufacturing of a wide variety of electrical products. And after over a century of innovation, Reliance Controls Corporation has built an enviable reputation for high quality and superior engineering.
Reliance Controls Corporation PB50 50-Amp NEMA 3R Power Inlet Box
50-Amp for Generators Up to 12,500 Running Watts
The Reliance Controls Corporation PB50 50-Amp NEMA 3R Power Inlet Box is designed for the use with the Pro/Tran transfer switches and Panel/Link manual transfer panels and generator-ready load centers. The power inlet box may be installed indoors, or outdoors in an open area where the generator is being used. Using one of the four combination 1/2-inch and 3/4-inch knockouts the power inlet box can be wired directly to the transfer switch or panel.

The rain tight NEMA 3R PBN-Series steel power inlet box is designed for use with Pro/Tran transfer switches, Panel/Link transfer panels and generator-ready load centers.
The front entry inlet has a weatherproof spring cover which closes when not in use to protect the inlet from the elements.
It is designed to be installed outdoors in an open area where the generator is being used to avoid carbon monoxide hazard.
Works Best with these Reliance Controls Accessories

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Product Description
The Reliance Controls PB50 50-Amp NEMA 3R Power Inlet Box is a watertight electrical inlet box designed to be located outdoors where the generator is running in order to prevent dangerous carbon monoxide fumes from entering your house or other cherished space. This inlet box should be safely hardwired through an outside wall directly to the transfer switch or panel, eliminating the need for cords running through windows or doors. It was also designed to be wired directly to the transfer switch or panel by using one of the four included combination 1/2-inch and 3/4-inch knockouts (one on each side, bottom and back). The exclusive, patented make provides generous wiring space and facilitates rough-in. The face of the box is removable for easy placement and wiring and, finally, it was constructed of steel with rugged, anti-corrosive, powder-coated paint and has a spring-loaded inlet cap to prevent moisture front entering the front-mounted connector inlet when not in use. Since 1909, Reliance Controls Corporation has contributed more innovations than any other single manufacturer and has been awarded over 85 patents on manual transfer switches, time switches and accessories. Reliance Controls Corporation specializes in the manufacturing of a wide variety of electrical products. The primary product line consists of heavy duty time clocks and controls, generator accessories, transfer switches and transfer panels for portable generators. And after over a century of innovation, Reliance Controls Corporation has built an enviable reputation for high quality, superior engineering and exceptional customer service.














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