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ABB / General Electric TJJ436300WL Molded Case Circuit Breaker

  • 300A
  • 3 Pole
  • Unit Mount
ABB / General Electric TJJ436300WL
Molded Case Circuit Breaker
Brand ABB / General Electric
SKU TJJ436300WL
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  • 300A
  • 3 Pole
  • Unit Mount

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ABB / General Electric TJJ436300WL - 300A 3 Pole Molded Case Circuit Breaker

ABB / General Electric TJJ436300WL - 300A 3 Pole Molded Case Circuit Breaker

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$658.03 In Stock

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Description

Built for industrial applications, the GE TJJ436300WL provides robust long-time and instantaneous (LI) overcurrent protection. The 'WL' suffix indicates this 3-pole, 300A breaker comes complete with line and load lugs (TCAL43) for immediate wiring. This unit-mount MCCB installs into GE J-Frame enclosures, Spectra Series switchboards, and motor control centers. It features a non-interchangeable trip, reverse feed capability, and an adjustable magnetic trip for precise coordination.

Specifications

Key specifications
Brand ABB / General Electric
Part Number TJJ436300WL-R
Series TJJ
Amperage 300A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC, 500VDC
Phase 3
AIC Rating 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC
Fit and installation
Terminal Type Lugs
For Use With GE J-Frame Enclosures, GE Spectra Switchboards, GE Motor Control Centers
Wire Gauge (1) 6 AWG-600 kcmil or (2) 2/0 AWG-250 kcmil (Cu/Al)
Max Wire 600 kcmil
Min Wire 6 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment
Accessories Line and Load Lugs Included (TCAL43)
Standards CSA C22.2 No. 5, NEMA AB 1, UL 489
Approval CSA, HACR, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Non-Interchangeable Trip

Product FAQs

6 answers
What equipment is the TJJ436300WL compatible with?

This unit mount breaker is designed for installation in GE J-Frame enclosures, GE Spectra switchboards, and GE motor control centers.

What wire sizes do the factory lugs on the TJJ436300WL accept?

The included lugs accept either one 6 AWG to 600 kcmil wire or two 2/0 AWG to 250 kcmil wires per phase. They are rated for both copper and aluminum conductors.

Is the trip unit on the TJJ436300WL adjustable?

Yes, it features a thermal magnetic trip unit with fixed thermal protection for long-time overloads and an adjustable magnetic setting for instantaneous short-circuit protection.

Is the TJJ436300WL suitable for direct current (DC) systems?

Yes, this breaker is rated for use in DC applications. It provides a 20kA interrupting capacity at both 250VDC and 500VDC.

What does the WL suffix indicate on the TJJ436300WL catalog number?

The WL suffix indicates that the breaker is supplied with factory-installed copper and aluminum line and load lugs.

How is the TJJ436300WL connected within a panel?

This is a unit mount breaker with a feed-thru connection type. Because it includes factory-installed line and load lugs, it is designed for cable-in and cable-out wiring rather than plugging directly onto a busbar.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
1 review
  • MW
    Michael W.
    Verified Buyer
    Reviewing
    ABB / General Electric TJJ436300WL - 300A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/28/25
    TJJ436300WL 3 Pole Circuit Breaker

    Great fast shipping on many orders we have placed with Super Breakers, a very good reliable disturber for our business.