Heavy Duty Connectors

One of the HIGHEST AMPACITY RATED connectors available

SAE J1283 Jump Start Mechanical Connectors

500-Amp Continuous, 2000-Amp Intermittent 30 Seconds

Heavy duty, high capacity SAE J1283 Jump Start Connectors provide secure electrical connections for charging or starting heavy equipment and industrial machines. The specially designed plug shape eliminates the chance of cross polarity connections.

Fully compatible with the J1283 connectors used by leading heavy equipment manufacturers including Caterpillar, Komatsu, and CASE

Features

  • High ampacity SAE J1283 Jump Start Plugs are rated 500 amps continuous, 2000 amps intermittent 30 seconds

  • Plug connector mates with SAE J1283 Terminal

  • Designed for use with 1/0 AWG wire

  • Ideal for use where battery access is restricted or dangerous

  • Mechanically applied and field serviceable

  • Keyed to ensure correct polarity

  • Design reduces chance of sparking and possible ignition of flammable materials

  • Zinc coated copper terminals

  • High impact ABS plastic housing

  • Meets or exceeds SAE J1283 performance standards

  • Easy inventory—just a few parts work for every Jump Start application

Selection

Plugs
Receptacles
Caps
Brackets
Kits

Selection

Universally Compatible

SY® Power Connectors

Quick-disconnect connectors

The SY® Power Connector is designed for use as a power quick-disconnect in automotive, RV, and marine applications, as well as other high-current DC charging circuits. SY® connector housings are genderless and mechanically keyed by color—connectors of the same color and size are mated together by simply flipping one over. The keyed design visually and physically prevents accidental cross-mating.

Features

  • UL rated for 600 volts

  • Single-piece impact-resistant Polycarbonate Lexan® housings

  • Superior tolerance to extreme cold and heat

  • Solid copper contacts are plated with 99.9% pure silver for maximum conductivity with low resistance

  • Unique “ramplock” action allows contacts to be easily mated yet securely locked in position

  • Integral tempered 301 stainless steel springs maintain constant pressure on the contacts to ensure consistent, low resistance connections and resist vibration arcing

  • Self cleaning design keeps conductive surfaces corrosion-free

  • Heat-treated, flared barrels readily accept fine stranded wire

Applications

  • Marine, auto, and RV accessories

  • Jumper cables and harnesses

  • Equipment and Service Trucks

  • Allows one connection system to meet multiple needs

Selection

50 Amp
120 Amp
175 Amp
350 Amp
Kits

Selection

Extreme-weather

CLS Power Connectors 

In 400-Amp or 100-Amp "Mini" Sizes

CLS Series Single Pin Inline Connectors are designed for maximum resistance to excessive torque loading. Constructed of weatherproof materials.

CL Series Single Pin Panel Mount Connectors feature super tough nylon housings that won’t chip or crack under extreme temperature and impact conditions.

Features

  • UL Listed and CSA Certified

  • Accepts up to 400A/600V

  • NEMA 3R and NEMA 4R rated for wet locations

  • Panel Mounts in Stud Post or Set Screw style

  • Self-threading screws

  • Panel mounts installation with self-tapping stainless screws, eliminates lock washers and nuts

Selection

Connectors
Panel Mounts
Couplers
Covers

Selection

Custom Connector Cables

Built with Quality - Designed by You

We stock and build custom heavy duty connector cables. 

CONTACT US

sales@polarwire.com (907) 561-5955
Mon-Fri: 8 am to 5 pm (AKDT)
Manufacturing and Shipping Facility
Centrally located in Illinois
Store and Corporate Headquarters
7941 Brayton Drive
Anchorage, Alaska 99507

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