ABB - Installation Products SL 250 NK - Tin Plated Copper Compression Straight and Stacking Lug Kit for Copper Terminations. Kit Contains (1) Straight Lug and (1) Stacking Lug and (2) 1/2 inch Stainless Steel Flat Washers. Straight Lug L 250 N - Tin Plated Copper Two-Hole Straight NEMA Lugs. wire size 250 kcmil CU. Installing Dies 60, 166, 11/16, 16. Length 5-7/16 inch. Pad 1-1/8 inch wide x 3-1/16 inch long x 5/62 inch thick. (2) 9/16 inch holes on 1-3/4 inch center. Barrel 1-11/16 inch. CSA. UL Listed. Stacking Lug SL 250 N - Tin Plated Copper Two-Hole Stacking NEMA Lugs - stacking lug, wire size 250 kcmil Stranded, uses bolt size 1/2 inch. Installing Dies 11/16, 16, TR, 60. Length 5-9/16 inch. Pad 1-1/8 inch wide x 2-13/16 inch long x 9/64 inch thick. (2) 9/16 inch Diameter holes on 1-3/4 inch center. Barrel 1-9/16 inch. UL listed.
ABB - Installation Products

SL 250 NK

UPC: 783786752560

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Overview

The ABB SL 250 NK is a tin-plated copper compression lug kit designed for reliable 250 kcmil copper wire terminations. The kit includes one straight NEMA two-hole lug and one stacking NEMA two-hole lug, both engineered for high-current applications. The straight lug (L 250 N) features a 5-7/16" length, 1-1/8" wide x 3-1/16" long pad, and a 1-11/16" barrel with two 9/16" holes on 1-3/4" centers. The stacking lug (SL 250 N) measures 5-9/16" in length, with a 1-1/8" wide x 2-13/16" long pad and a 1-9/16" barrel, also equipped with two 9/16" holes on 1-3/4" centers. Both lugs accept 1/2" bolts and are UL listed and CSA certified for compliance with industrial standards. The kit includes two 1/2" stainless steel flat washers for secure mounting. Installation requires dies sized 60, 166, 11/16", 16 (straight lug) or 11/16", 16, TR, 60 (stacking lug). These compression lugs are ideal for heavy-duty electrical panels, motor controllers, and power distribution systems where high conductivity and corrosion resistance are critical. The tin plating ensures long-term protection against oxidation, while the copper construction provides low resistance for efficient current flow.
  • Kit includes 1 straight and 1 stacking tin-plated copper NEMA lug for 250 kcmil CU wire
  • Straight lug: 5-7/16" length, 1-1/8" x 3-1/16" pad, 1-11/16" barrel, two 9/16" holes on 1-3/4" centers
  • Stacking lug: 5-9/16" length, 1-1/8" x 2-13/16" pad, 1-9/16" barrel, two 9/16" holes on 1-3/4" centers
  • UL listed and CSA certified for compliance with industrial standards
  • Includes two 1/2" stainless steel flat washers for secure mounting

Specifications

Application
General Applications
Connection
Compression
Finish
Tin Plated
Housing Material
Copper
Insulation
None
Mounting
Bolt-on
Size
Length 5.562 inch, Pad width 1.129 inch
Special Features
Tin Plated to Resist Corrosion. Marked with Conductor Sizes and Die References
Standard
UL and CSA listed
Type
Compression Lug Two Hole Stacking
Wire Size
250 kcmil
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
0.5800 L
Package Weight (Metric)
0.2630 kg
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Frequently Asked Questions about ABB - Installation Products

What technical support does ABB - Installation Products offer?

ABB - Installation Products offers comprehensive technical support through a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services include emergency services, on-site support, remote diagnostics, installation assistance, equipment assessments, and repair coordination. Customers can also access technical resources via email at [email protected].

What are the main product lines offered by ABB - Installation Products?

ABB - Installation Products offers a comprehensive range of electrical distribution and protection solutions, including panelboards like ReliaGear® and ProLine, circuit monitoring systems, softstarters, and modular bus bar systems. Key product lines cover low voltage applications with specialized offerings such as the SMISSLINE TP flexible power distribution bus system, Ekip UP protection and metering relays, and enclosed/open softstarters for industrial and commercial sectors.

What are the key features of ABB - Installation Products products?

ABB - Installation Products feature advanced, user-friendly design elements optimized for industrial applications. Key features include 2-in-1 Push-in Spring connection technology allowing ferruled and rigid cable connections, tool-free mounting, robust vibration and shock-proof design, and front-accessible terminals. The products deliver high connection capacities up to 18.5 kW, support motor starting solutions, provide short-circuit fuseless protection to 100 kA, and enable faster, more intuitive installation with one-hand mounting and automated wiring capabilities.

What environmental ratings do ABB - Installation Products products have?

ABB - Installation Products offer robust environmental ratings across multiple standards, including IP54 to IP66 protection levels and NEMA Type 1 to Type 4X enclosures. These ratings ensure superior protection against dust, water, and corrosion for both indoor and outdoor industrial applications, with certifications that meet stringent environmental performance requirements.

What accessories are available for ABB - Installation Products products?

ABB - Installation Products offers a comprehensive range of accessories designed to enhance functionality and connectivity across industrial control systems. Key accessories include auxiliary contact blocks, signaling contacts, shunt trips, undervoltage releases, electronic timers, interlocks, interface relays, terminal blocks, and connection accessories. These accessories are compatible with SMISSLINE TP plug-in distribution systems and Unifix AD busbar systems, allowing for easy installation and configuration of manual motor starters, circuit breakers, and other electrical components.

What is ABB - Installation Products's warranty policy?

ABB - Installation Products offers a standard 1-year factory warranty for most installation products, with options to extend warranty coverage up to 5 years for specific product lines like low voltage circuit breakers. Extended warranty requires online registration through ABB's Extended Warranty Tool, which verifies product application and provides additional coverage for manufacturing defects and factory-mounted accessories.

What industries and applications are ABB - Installation Products products used for?

ABB - Installation Products serve critical electrical infrastructure needs across diverse industries including Energy, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their products cover essential applications such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems, engineered for high-reliability environments with a strong emphasis on safety, efficiency, and sustainability.

What communication protocols do ABB - Installation Products products support?

ABB - Installation Products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with high-speed data transmission capabilities up to 100 Mbps and support for various network topologies.

How are ABB - Installation Products products typically installed?

ABB - Installation Products are installed through a professional, systematic process emphasizing fast, intuitive wiring and tool-free mounting. Typical installation involves precise equipment verification, secure electrical connections, and comprehensive testing, including foundation frame assessment, busbar and cable connections, earthing system establishment, and thorough pre-commissioning functional tests to ensure optimal performance and reliability.

What certifications and standards do ABB - Installation Products products comply with?

ABB - Installation Products products meet rigorous international certifications including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products comply with critical standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, ensuring high performance and reliability across industrial installation applications.