Eaton Molded Case Circuit Brea...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$159.66
$117.11

Eaton Molded Case Circuit Breaker Accessory Terminal, 400A, 3-Pole, Frame J-K Series C, (2) #2/0–250 kcmil or (1) 2/0–500 kcmil Cu/Al, Pressure Type

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Model: 3TA401K

In Stock (leaves warehouse same day if ordered before 3pm ET)

$159.66
$117.11
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Eaton Molded Case Circuit Breaker Accessory Terminal 400A Three-Pole Frame J-K Series C

Professional Circuit Breaker Terminal Connection System

The Eaton Molded Case Circuit Breaker Accessory Terminal delivers exceptional electrical connection performance for 400A three-pole circuit breaker applications. This Frame J-K Series C terminal provides reliable pressure-type line and load connections designed for professional electricians, electrical contractors, and facility managers, offering the proven reliability and advanced technology that professionals trust from the global leader in intelligent power management.

Professional Features & Benefits

High-Capacity Electrical Performance

  • 400A Current Rating - High-amperage capacity for demanding commercial and industrial electrical distribution applications requiring robust power handling
  • Three-Pole Configuration - Complete three-phase electrical connection capability for balanced power distribution in commercial and industrial systems
  • Frame J-K Compatibility - Engineered specifically for Frame J-K molded case circuit breakers ensuring proper fit and electrical performance
  • Series C Design - Advanced Series C technology providing enhanced electrical performance and reliability for professional installations

Professional Connection System

  • Pressure Type Terminals - Secure pressure-type line and load connections ensuring reliable electrical contact and long-term performance
  • Flexible Wire Compatibility - Accommodates (1) 2/0-500 kcmil Cu/Al conductors providing versatility for various electrical installation requirements
  • UL Listed Safety - UL Listed certification ensuring compliance with electrical safety standards for professional electrical installations

Technical Specifications

Amperage Rating: 400A, Configuration: Three-Pole, Frame Size: Frame J-K, Series: Series C, Wire Size: (1) 2/0-500 kcmil Cu/Al, Terminal Type: Pressure type line and load, Dimensions: 7" L x 5" H x 4" W, Weight: 1.05 lb, Certifications: UL Listed, Compliance: Contact Manufacturer

Installation & Usage

  1. Verify circuit breaker compatibility with Frame J-K Series C specifications and confirm power is disconnected
  2. Position terminal accessory according to manufacturer specifications ensuring proper alignment with circuit breaker frame
  3. Connect conductors to pressure-type terminals following torque specifications for secure electrical connection
  4. Verify wire size compatibility with (1) 2/0-500 kcmil Cu/Al rating and proper conductor preparation
  5. Complete installation following UL Listed guidelines and local electrical code requirements
  6. Perform electrical testing to verify proper connection integrity and system performance

Professional Applications

Ideal for:

  • Commercial Electrical Systems - High-amperage distribution panels, switchgear applications, and commercial power distribution requiring 400A capacity
  • Industrial Power Distribution - Manufacturing facilities, processing plants, and industrial electrical systems requiring robust three-pole connections
  • Electrical Panel Upgrades - Modernization projects requiring enhanced terminal connections for existing Frame J-K circuit breaker installations
  • Switchgear Applications - Motor control centers, distribution switchboards, and electrical control panels requiring professional-grade terminals
  • Power Distribution Centers - Main distribution panels, sub-panels, and electrical distribution systems requiring high-capacity connections
  • Electrical Maintenance - Replacement terminals for existing installations requiring UL Listed components and reliable performance
  • Commercial Construction - New construction projects requiring professional electrical connections for three-phase power systems
  • Industrial Electrical Safety - Critical electrical systems requiring secure pressure-type connections and proven electrical performance

Series C Technology Advantage

Eaton's Series C technology provides enhanced electrical performance through advanced engineering and manufacturing precision. The pressure-type terminal design ensures secure conductor connections while accommodating flexible wire sizing from 2/0 to 500 kcmil for copper and aluminum conductors, making it ideal for diverse electrical installation requirements.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers unmatched reliability and performance in electrical connection systems. Our UL Listed terminal accessories provide the electrical safety and dependable performance that electricians, electrical contractors, and facility professionals trust worldwide, backed by comprehensive engineering support and proven field performance in demanding electrical applications.

Manufacturer Resources

Product Specs

Amperage Rating:
400 A
Certifications:
UL Listed
Compliances:
Contact Manufacturer
Frame Size:
Frame J-K
Number Of Poles:
Three-pole
Product Height:
5 in
Product Length Depth:
7 in
Product Type:
Molded Case Circuit Breaker Accessory Terminal
Product Weight:
1.05 lb
Product Width:
4 in
Series:
Series C
Terminals:
Pressure type line and load
Wire Size:
(1) 2/0-500 kcmil Cu/Al
Product Group:
Electrical
Department:
Electrical

Eaton 3TA401K – Frequently Asked Questions

How fast can I get the Eaton 3TA401K 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 Eaton 3TA401K come with a warranty?
Absolutely. The Eaton 3TA401K 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 Eaton 3TA401K?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Eaton 3TA401K from ZenSupply?
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