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Square D JDL PowerPacT J 3-Pole Circuit Breaker, 600VAC Thermal Magnetic
Model: SQU-JDL
"Square D JDL PowerPacT J 3-Pole Circuit Breaker, 600VAC Thermal MagneticThe Square D PowerPacT J 3-Pole Circuit Breaker (JDL) is a J-Frame molded-case breaker built to protect electrical systems...
Square D
Starting at
$2,207.96
Square D PowerPacT J Mechanical Lug Kit, Circuit Breaker Accessory
The Square D PowerPacT J Mechanical Lug Kit is a connection accessory engineered specifically for PowerPacT J circuit breakers rated 150A to 250A. Constructed of copper, this mechanical lug kit accepts 1/0 AWG to 300 kcmil copper conductors and can be installed on either the upstream or downstream side of the breaker. Each kit is UL and CSA listed, ships as a set of three lugs, and delivers dependable, code-compliant terminations for professional electrical installations.
Key Features
- Rated Current: 150A to 250A, matched to PowerPacT J circuit breaker frame requirements.
- Durable Construction: Copper lug material for reliable, low-resistance conductor terminations.
- Conductor Range: Accepts 1/0 AWG to 300 kcmil copper conductors for flexible wire sizing.
- Mechanical Connection: Mechanical lug design simplifies field termination without special crimping tools.
- Connection Location: Usable on either the upstream or downstream side of the breaker.
- Tightening Torque: 28-28 N.m, 50-150 mm² (AWG 1/0...300 kcmil), for proper, code-compliant torque application.
- Kit Quantity: Includes three lugs per accessory kit (set of 3).
Certifications & Compliance
- UL Listed
- CSA Certified
- Complies with UL 50 and CSA listing requirements, ANSI Certified
Technical Specifications
- Warranty: 18 months
- Take Back: No
- Returnability: Yes
- Product Contributes To Saved And Avoided Emissions: No
- Warranty Period: 18 months
- Sustainable Packaging: No
- Mercury Free: Yes
- Packaging Without Single Use Plastic: No
- ROHS Eur In Scope: Yes
- Recycled Metal Content At Cr Level: 0 %
- Legacy WEEE Scope: In
- Packaging Made With Recycled Cardboard: Yes
- Serviceability: No
- With Recycled Cardboard: Yes
- WEEE Product Category: 5
- Without Single Use Plastic: No
- ROHS Exemption Information: Yes
- Traceability: No
- B2B Bullet Point 1: Mechanical lug terminal kit for copper wire connection
Typical Applications
- PowerPacT J Circuit Breaker Installations
- Commercial and Industrial Panelboard Wiring
- Circuit Breaker Retrofits and Accessory Upgrades
- Copper Conductor Terminations
- New Construction and Electrical Panel Servicing
Why Square D?
Square D backs the PowerPacT J Mechanical Lug Kit with solid copper construction, UL and CSA listing, and ANSI-certified performance for dependable, code-compliant connections. Backed by an 18-month warranty, this accessory kit delivers the reliability and consistent performance electrical professionals expect from Square D on every PowerPacT J installation.
Manufacturer Resources
Product Specs
- Product Type:
- Equipment Lug Kit
- Amperage Rating:
- 150A-250A
- Listing:
- UL Listed
- Standards:
- UL-CSA
- Series:
- PowerPacT J
- Product Material:
- Copper
- Department:
- Electrical
- Product Group:
- Wire Connectors & Terminals
- Product Subgroup:
- Lugs & Terminals
- Country Of Origin:
- United States
Square D CU250JD – Frequently Asked Questions
1) Will the Square D CU250JD lug kit fit my PowerPacT J frame breaker?
The CU250JD mechanical lug kit is built for PowerPacT J frame breakers rated 150A to 250A. If your breaker is a J frame in that amp range, the kit matches it. For other frames (H, L, or larger ampacities) you need the lug kit specified for that frame instead.
2) What wire sizes will the CU250JD lugs take?
Each lug accepts copper conductors from 1/0 AWG up to 300 kcmil, which in metric terms is the 50 to 150 mm2 range. The body is copper, so run copper conductors into it, not aluminum.
3) How many lugs come in the Square D CU250JD kit, and is one kit enough for a three-pole breaker?
Three lugs ship per kit, so one kit terminates a three-pole breaker on one side only. If you are landing conductors on both line and load, order two kits.
4) What torque do I tighten these PowerPacT J lugs to?
28 N.m across the full 1/0 AWG to 300 kcmil (50 to 150 mm2) conductor range. A calibrated torque wrench or torque screwdriver is required to hit that value for an inspection-ready termination.
5) What lug kit should I use if my feeder is larger than 300 kcmil and above 250A?
The Square D CU250JD tops out at 300 kcmil copper and is matched to PowerPacT J breakers rated 150A to 250A, so a larger feeder needs a different kit. For a higher-amperage main, the ABB MLA A-Series main lug kit uses pressure-type lugs and is rated 400A to 600A. Note that it is an ABB A-Series panel accessory, not a PowerPacT J breaker part, so it applies when the equipment itself is ABB.
6) Is there a direct equivalent to the Square D CU250JD lug kit for an Eaton breaker?
No. The CU250JD is built specifically for Square D PowerPacT J frame breakers rated 150A to 250A and its mounting pattern matches that frame only. For an Eaton breaker the corresponding part is the Eaton Series C line and load terminal accessory kit (3T20FB), which is designed for Eaton Series C breaker frames. Lug kits are frame-specific, so pick the kit that matches the breaker brand and frame you are terminating to rather than matching on conductor size alone.
7) Can these lugs be mounted on the line side as well as the load side?
Yes, the kit is usable on either the upstream or downstream side of the PowerPacT J breaker, so the same part covers line or load terminations.
8) Do I need a crimper or hydraulic tool to terminate with this kit?
No. These are mechanical lugs, so the conductor is clamped under a set screw and torqued, no crimp die or hydraulic tool needed. That makes them the practical choice for field terminations where a compression lug would mean hauling a crimper to the panel.
9) Does the Square D CU250JD accept aluminum conductors, or do I need a different lug?
The CU250JD is copper and is specified for 1/0 AWG to 300 kcmil copper conductors. If the feeder is aluminum, use a kit rated for dual-rated conductors instead, such as the ABB TLK2 or TNLK2 PowerMark Gold lug kits, both listed for CU/AL conductors, keeping in mind those are neutral and ground bar kits for ABB PowerMark Gold equipment rather than breaker terminal kits.
10) Can I use a neutral or ground lug kit in place of the Square D CU250JD?
No. The CU250JD is a breaker terminal kit that lands the line or load conductors on a PowerPacT J breaker and ships as a set of three copper lugs. Neutral and ground lug kits such as the ABB TLK2 series PowerMark Gold neutral/ground lug kit for CU/AL conductors and the ABB TNLK2 series neutral lug kit mount to a panel neutral or ground bar instead, and are for aluminum or copper grounded conductors. They look similar in a catalog but serve a different termination point.
11) Is the Square D CU250JD the right lug kit for a fused disconnect switch?
No. The CU250JD is a PowerPacT J circuit breaker accessory and bolts to the breaker terminals. For a disconnect switch, the comparable part is the ABB OZXA-400 replacement lug kit for OT/OS400 series disconnect switches. Confirm whether the enclosure holds a molded case breaker or a switch before ordering, since the two use different terminal geometry.
12) Is the Square D CU250JD made in the USA?
Country of origin is the United States, which matters if your project carries domestic-sourcing or Buy American documentation requirements.
13) Do I need a crimp tool for the Square D CU250JD, or is there a simpler option?
No special tooling is needed. The CU250JD uses a mechanical lug design that terminates in the field with a torque wrench, specified at 28 N.m for 1/0 AWG through 300 kcmil. Among the comparables, the ABB MLA A-Series kit uses pressure-type lugs, which is the same general idea of a set screw style termination rather than a compression crimp.
How fast can I get the Square D CU250JD delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D CU250JD come with a warranty?
Absolutely. The Square D CU250JD is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D CU250JD?
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