Panelboard Main Breaker Kit, JDL, JGL, JJL, JLL, JRL, 250A, 347V, Main Circuit Breaker, 3 Phase MPN:N250MJ
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In Stock
Free Shipping
In Stock
SKU
510-G4586504
Panelboard Main Breaker Kit, JDL, JGL, JJL, JLL, JRL, 250A, 347V, Main Circuit Breaker, 3 Phase
This Square D Panelboard Main Breaker Kit is designed for use with J-Frame panelboards, offering a convenient and efficient solution for electrical installations. The kit includes all necessary components, including a cover plate, label, mounting plate, screw set, and rail extensions, making it a complete solution for main circuit breaker applications. With a 250A capacity and 347V AC rating, this kit is ideal for three-phase electrical systems. Its compact design and easy installation make it suitable for a variety of applications, including commercial and industrial settings, and provides a reliable and safe electrical distribution system.
Top product features:
- Main Circuit Breaker provides overcurrent protection for the panelboard
- Includes a mounting plate for secure installation
- Two brackets for support provide structural integrity to the panelboard
Top product applications:
- Main Breaker Replacement
- Commercial Electrical Panel Upgrade
- Industrial Electrical Panel Installation
Panelboard Main Breaker Kit, For Use With Square D J-Frame Panelboards, Amps 250, Includes (1) Cover Plate, (1) Label, (1) Mounting Plate, (1) Screw Set, (2) Bracket for Support, (2) Rail Extension, (2) Rail Splice, (2) Terminals, (3) Connector, 347V AC, Phase Three, Frame Size 225A/J, Compatible Circuit Breaker Series JDL, JGL, JJL, JLL, JRL, Length 50 in, Width 20 in, Depth 5.75 in
Additional Information
- Country of Origin: MX
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 25.30
- Package Width: 14.50
- Package Height: 2.30
- Package Weight: 10.35
Product info last updated on February 4, 2026 5:21am UTC
Category: Circuit Protection