Designed for demanding commercial environments, the GE TFJ224150 is a 150A molded case circuit breaker featuring an adjustable instantaneous magnetic trip. This 2-pole F-Frame device mounts into legacy GE A-Series panelboards, Spectra distribution equipment, and industrial switchboards. It provides a 22kA interrupt capacity at 480VAC and is fully HACR rated for HVAC applications. While this specific model is a legacy component, it can be substituted with an ABB Tmax XT4 using a retrofit kit.
What panelboards are compatible with the GE TFJ224150 circuit breaker?
The TFJ224150 is designed for use in legacy GE A-Series panelboards, GE Spectra panelboards, and industrial switchboards that accept F-Frame bolt-on breakers.
What mounting hardware is required to install the TFJ224150 in a GE panelboard?
To mount this TFJ frame breaker in standard GE AV-1, AV-2, or CCB panelboards, you typically need a TF2DPK mounting hardware kit for dual or twin branch configurations.
What size wire can be used with the load lugs on this breaker?
The standard lugs on the TFJ224150 accept copper or aluminum conductors ranging from 4 AWG to 300 kcmil.
What lug kit is compatible with the TFJ224150 if I need replacements?
For the 150A TFJ frame, the GE TCAL24 or TCAL26 lug terminal kits are compatible. Both kits support 4 AWG to 300 kcmil copper or aluminum wire.
Is the magnetic trip on the TFJ224150 adjustable?
Yes, this breaker features a thermal magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic element for short-circuit protection.
What is the modern replacement for the legacy GE TFJ224150?
Since the GE TFJ series is a legacy F-Frame breaker, modern replacements often utilize the ABB Tmax XT4 series. The XT4 can be installed into existing GE infrastructure using a specific retrofit kit.
Can the TFJ224150 be used in DC voltage applications?
Yes, in addition to its AC ratings, this breaker is rated for a 10kA interrupting capacity at 250VDC, making it suitable for specific direct current applications.
Does this breaker provide instantaneous short-circuit protection?
Yes, the LI trip function code indicates it provides both Long-Time thermal overload protection and Instantaneous magnetic short-circuit protection.
Can I install this GE TFJ breaker in a Square D or Siemens panel?
No, the TFJ224150 is a proprietary bolt-on breaker designed specifically for GE and ABB A-Series and Spectra panelboards. It is not interchangeable with Square D, Siemens, or other manufacturers' panels.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
ABB / General Electric TFJ236175 - 175A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
9/18/26
Breaker came in the next day and customer was back up and running
Cost is perfect, shipping is extremely fast. Definitely using superbreakers more than my local electrical warehouses.
JC
Jason C.
Verified Buyer
Reviewing
ABB / General Electric TFJ236150WL - 150A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
9/8/26
Great Performance
I have been totally impressed with the freindlyness and professionalism of the staff of SuperBreakers! Great execution and available after the sale if needed. A rare commodity these days! 5 STARS!!
LR
Linda R.
Verified Buyer
Reviewing
ABB / General Electric TFJ236225 - 225A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
3/11/26
love working with Super Breakers
Perfect !!!!
KA
Kirk A.
Reviewing
ABB / General Electric TFJ236225 - 225A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
3/7/23
GE ECB's Reconidtioned.
Shipped and received fast. No issues with installation, test or operations.