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Square D PowerPacT L Mechanical Lug Kit, 250A, 3-Pole, Aluminum
The Square D PowerPacT L Mechanical Lug Kit is a connection accessory engineered for PowerPacT Multistandard circuit breakers, specifically 3-pole PowerPacT L-Frame units. Rated for 250A, each lug in this set of 3 is constructed from tin-plated aluminum, allowing compatibility with both aluminum and copper conductors. The kit is UL Listed and cULus certified, delivering a reliable, code-compliant connection accessory for panel builders and contractors.
Key Features
- Rated Current: 250A rated current for use with 3-pole PowerPacT L-Frame circuit breakers.
- Durable Construction: Tin-plated aluminum lug body allows use with both aluminum and copper conductors.
- Configuration: Designed for 3-pole PowerPacT L-Frame breakers and supplied as a set of 3 lugs (qty 3) per kit.
- Wire Compatibility: Accepts 1 conductor per lug, AWG 2, with terminal data of (1) 2 AWG-500 kcmil aluminum and (1) 2 AWG-600 kcmil copper, short-type terminal.
- Mechanical Connection: Mounts by screws for a secure mechanical termination.
- Application: Suitable for unit-mount PowerPacT L breakers on the line or load side, or the load side of an I-Line breaker.
Certifications & Compliance
- UL Listed
- cULus Certified
- RoHS Compliant with Exemptions
- Mercury Free
Technical Specifications
- Warranty: 18 months
- Poles Description: 3P
- Number Of Cables: 1
- Mounting Mode: by screws
- Cable Material: aluminium
- Range Of Product: PowerPacT L
- Line Rated Current: 250-250 A
- AWG Gauge: AWG 2
- Sustainable Packaging: Yes
Typical Applications
- Panelboard and Switchboard Wiring
- Commercial and Industrial Electrical Installations
- OEM Control Panel Building
- PowerPacT L-Frame Breaker Retrofits and Upgrades
Why Square D?
Square D PowerPacT L lug kits are engineered with tin-plated aluminum construction and are UL Listed and cULus certified, delivering dependable, code-compliant connections for demanding commercial and industrial electrical systems. Backed by an 18-month warranty, these mechanical lugs give panel builders, OEMs, and contractors a trusted accessory for PowerPacT L-Frame breaker installations.
Manufacturer Resources
Product Specs
- Product Type:
- Lug Kit
- Series:
- PowerPacT L
- Amperage Rating:
- 250A
- Configuration:
- 3-Pole
- Connection Type:
- Set Screw
- Listing:
- UL Listed
- Listing:
- cULus
- Product Material:
- Aluminum
- Department:
- Electrical
- Product Group:
- Wire Connectors & Terminals
- Product Subgroup:
- Lugs & Terminals
Square D AL400L61K3 – Frequently Asked Questions
1) Will the Square D AL400L61K3 lug kit fit a 3-pole PowerPacT L-Frame breaker?
Yes. The AL400L61K3 is built for 3-pole PowerPacT L-Frame (PowerPacT Multistandard) breakers and ships as a set of 3 lugs, one per pole. It is rated 250A, so the breaker's rating needs to match. It can go on the line or load side of a unit-mount PowerPacT L breaker, or on the load side of an I-Line breaker.
2) What wire size does the Square D 250A PowerPacT L mechanical lug accept?
One conductor per lug. Terminal data is (1) 2 AWG to 500 kcmil aluminum, or (1) 2 AWG to 600 kcmil copper, in a short-type terminal. If you are pulling parallel runs per phase, this kit will not take them, you need a two-conductor lug instead.
3) Can I land copper conductors in an aluminum lug like this one?
Yes. The lug body is tin-plated aluminum, which is rated for both aluminum and copper conductors, so no separate copper-only lug is needed. Copper is accepted from 2 AWG up to 600 kcmil.
4) I need lugs for a breaker rated higher or lower than 250A, is this still the right kit?
No. The AL400L61K3 is a 250A kit, with line rated current listed as 250-250 A, so it is a single-rating part rather than a range. For another ampere rating on the L-Frame you need the lug kit matched to that rating.
5) Can I use a Square D PowerPacT lug kit on an ABB disconnect or a PowerMark Gold panel?
No. The AL400L61K3 is specific to PowerPacT L-Frame breakers. For an ABB OT/OS400 series disconnect switch, the ABB OZXA-400 replacement lug kit is the matched part, and for a PowerMark Gold load center neutral or ground connection, the ABB TLK2 series CU/AL lug kit is what you want. Lug kits are frame-specific and are not interchangeable across manufacturers.
6) Can an ABB OZXA-400 lug kit be used on a PowerPacT L-Frame breaker instead of the AL400L61K3?
No. The ABB OZXA-400 is a replacement lug kit for ABB OT/OS400 series disconnect switches, so its lug bodies and screw mounting pattern are made to land on that switch, not on a circuit breaker terminal. The Square D AL400L61K3 is built for 3-pole PowerPacT L-Frame breakers, rated 250A, with set-screw connection and a tin-plated aluminum body that takes either aluminum or copper conductors. Breaker lug kits are frame-specific: for a unit-mount PowerPacT L on the line or load side, or the load side of an I-Line breaker, use the PowerPacT L kit.
7) Is the Square D PowerPacT L lug kit UL Listed for inspected commercial work?
It is UL Listed and cULus certified, so it clears inspection on both US and Canadian jobs. The kit is also RoHS compliant with exemptions and mercury free, which matters on institutional and government procurement specs.
8) How does the lug attach to the breaker, and do I need any extra hardware?
Mechanical set-screw termination, and the lugs mount to the breaker by screws. Nothing is crimped and no press tool is involved, so a torque wrench and screwdriver finish the job. One kit covers all three poles.
9) Is this the right part for retrofitting an existing PowerPacT L-Frame breaker in a panelboard?
Yes, that is one of its stated uses. The kit is called out for PowerPacT L-Frame breaker retrofits and upgrades, panelboard and switchboard wiring, commercial and industrial installs, and OEM control panel building. Confirm the existing breaker is a 3-pole L-Frame at 250A before ordering.
10) Is the ABB TLK2 neutral/ground lug kit an alternative to the Square D AL400L61K3?
They do different jobs. The ABB TLK2 is a neutral/ground lug kit for PowerMark Gold loadcenters, rated CU/AL, so it terminates neutral and ground conductors at the bar inside the panel. The Square D AL400L61K3 is a phase-conductor lug kit for 3-pole PowerPacT L-Frame breakers, supplied as three lugs rated 250A and mounted by screws to the breaker terminals. If the need is grounding or neutral termination in a loadcenter, the TLK2 addresses it; if the need is landing feeders on an L-Frame breaker, the PowerPacT L kit does.
11) Do I need a copper lug kit instead of the aluminum AL400L61K3 if my feeders are copper?
No separate copper kit is needed. The AL400L61K3 lug body is tin-plated aluminum, which is rated for use with both aluminum and copper conductors, and the terminal data covers (1) 2 AWG to 500 kcmil aluminum or (1) 2 AWG to 600 kcmil copper, one conductor per lug, short-type terminal. That dual rating is the same CU/AL principle used on the ABB TLK2 lug kit. Confirm your feeder size falls inside the stated range and torque to the breaker instructions.
How fast can I get the Square D AL400L61K3 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 AL400L61K3 come with a warranty?
Absolutely. The Square D AL400L61K3 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 AL400L61K3?
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