Square D JDL36225 Molded Case Circuit Breaker

No, the JDL36225 is a unit-mount circuit breaker intended for feed-thru applications and mounts via screws and brackets. For a Square D I-Line panelboard, you must use an I-Line plug-on equivalent, such as the JDA36225.

Yes. Standard unit-mount PowerPacT J-frame thermal-magnetic circuit breakers have factory-sealed trip units and can be safely reverse fed without derating.

While the thermal overload protection is fixed at 225A, the instantaneous magnetic trip can be adjusted using the dial on the face of the breaker. The short-circuit pickup range is adjustable between 1125A and 2250A.

The JDL36225 comes equipped with AL250JD lugs on the line and load sides. When terminating 3/0 AWG to 350 kcmil copper or aluminum conductors, these lugs must be torqued to 225 lb-in using a 5/16-inch hex bit.

In the Square D PowerPacT nomenclature, "J" designates the 250A maximum frame size. "D" specifies the intermediate interrupting capacity tier (18kAIC at 480VAC). "L" indicates that the breaker is supplied with mechanical lugs on both the line and load sides.

This breaker accepts standard PowerPacT J-frame internal plug-in accessories. Electricians can field-install shunt trips, undervoltage releases (UVR), auxiliary switches, and alarm switches directly behind the front accessory cover.

Yes, the PowerPacT J-frame design features removable lugs. The standard AL250JD line and load lugs can be removed and swapped for mechanical copper-only lugs (CU250JD), control wire tap lugs, or terminal nut kits for direct busbar connections.

No, this standard model is rated for continuous loading at 80% of its maximum 225A capacity. If your application requires a 100% continuous current rating, you must specify the JDL36225C variant and ensure compliance with 100% rating enclosure and conductor requirements.