Middle Atlantic MPR-JB863A – MPR Junction Box, 8 x 6 x 3 Inch
Middle Atlantic MPR-JB863A – MPR Junction Box, 8 x 6 x 3 Inch is backordered and will ship as soon as it is back in stock.
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Middle Atlantic MPR-JB863A – MPR Junction Box, 8 x 6 x 3 Inch
Product Overview
The Middle Atlantic MPR-JB863A is an optional junction box that fits on the end of an MPR Series raceway, measuring 8 inches deep by 6 inches wide by 3 inches high. Built from steel with a black finish, it is equipped with electrical knockouts for routing conduit and wiring into the raceway power system. It gives electricians a code-friendly termination point where building power transitions into MPR power distribution.
Product Description
MPR Series raceways distribute power vertically behind equipment walls, displays, and millwork, and every raceway run needs a clean point where electrical rough-in meets the raceway. The Middle Atlantic MPR-JB863A junction box provides that transition. It mounts on the end of an MPR raceway and presents standard electrical knockouts, allowing conduit or cable to enter the box and terminate where the raceway circuit connections are made. The 8 x 6 x 3 inch steel enclosure offers generous interior volume for conductors and splices, and the black finish matches the MPR raceway aesthetic when the installation remains visible. This is the wider of the two MPR junction box options: choose the MPR-JB863A when you need the 6-inch-wide box, or the MPR-JB853A when the narrower 5-inch-wide footprint fits the space better. Because the J-box is an optional accessory, it can be added per circuit only where the wiring plan calls for it. Find MPR raceways, modules, and other Middle Atlantic power distribution products at Creation Networks.
Key Features
- End-of-Raceway Mounting — Optional J-box fits directly on the end of an MPR Series raceway.
- Electrical Knockouts — Pre-formed knockouts accept conduit and cable entries for power rough-in.
- Steel Construction — Durable steel enclosure with a black finish.
- 8 x 6 x 3 Inch Size — The wider MPR junction box option, with room for conductors and splices.
- Sibling Option Available — MPR-JB853A offers a narrower 5-inch-wide alternative.
Technical Specifications
| Model | MPR-JB863A |
| Type | Junction box for MPR Series raceways |
| Dimensions (D x W x H) | 8 x 6 x 3 in |
| Construction | Steel |
| Finish | Black |
| Knockouts | Electrical knockouts included |
| Mounting | Fits on end of MPR raceway |
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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