Engineered to protect commercial distribution systems, the THED124100 provides 100A thermal-magnetic circuit protection. This E-frame breaker handles significant fault currents with a 65kA rating at 240VAC. The device mounts into GE A-Series and Spectra Series panelboards via a sturdy bolt-on connection. Contractors frequently use this model to replace standard-interrupt TED124100 breakers in existing infrastructure. It features a non-interchangeable trip unit and supports reverse feed setups.
HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip, Common Trip, Quick-Make/Quick-Break, Trip-Free Mechanism
Product FAQs
7 answers
Which panelboards accept the THED124100 circuit breaker?
This E-frame breaker is designed for bolt-on installation in GE A-Series and GE Spectra Series panelboards.
What is the difference between the GE TED124100 and the THED124100?
The THED124100 features a higher interrupting capacity than the standard TED124100. While they share the same physical dimensions, the THED model is rated for up to 65kAIC at 240VAC and 25kAIC at 480VAC to safely clear higher available fault currents.
Can the THED124100 be used in direct current (DC) systems?
Yes, this thermal-magnetic breaker is rated for DC applications up to 250VDC, providing an interrupting capacity of 20kAIC.
What wire sizes and materials are accepted by the THED124100 lugs?
The standard lugs accept conductor sizes ranging from 4 AWG to 3/0 AWG and are rated for both copper (Cu) and aluminum (Al) wire.
What are the lug torque specifications for the THED124100?
Torque requirements depend on the wire size used. For 3 AWG through 8 AWG conductors, torque the lugs to 100 in-lbs. For 2 AWG through 3/0 AWG conductors, torque the lugs to 150 in-lbs.
Why is the THED124100 branded as both ABB and General Electric?
ABB acquired GE Industrial Solutions. Legacy GE E-frame breakers are now manufactured by ABB but maintain exact physical and electrical compatibility with existing GE infrastructure.
What does the LI trip function indicate on the THED124100?
The LI designation means the thermal-magnetic trip unit provides Long-Time (L) protection for overloads and Instantaneous (I) protection for short circuits. Both trip points are fixed on this specific model.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 14 reviews.
ABB / General Electric THED136030WL - 30A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/24/26
Electric THED136030WL - 30A 3 Pole Molded Case Circuit Breaker
The circuit breaker arrived in excellent condition and was exactly as described. The quality is excellent, and it fits our application perfectly. Installation was straightforward, and it has been operating reliably without any issues.
The seller packed the item securely, and the shipping was fast. Overall, I am very satisfied with this purchase and would recommend both this product and the seller to others.
CB
Christian B.
Verified Buyer
Reviewing
ABB / General Electric THED136090WL - 90A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
5/12/26
Breakers and more....
I believe I have left several reviews for SuperBreakers, all with praise on the quality of their product, their friendly and knowledgeable staff, and superb pricing, and this review is no different. I have yet to be let down or disappointed by their products or team members. Top notch all around! Once you use them, you will see how valuable a resource they really are to have in almost any situation that requires breakers or any type of motor control or switch gear.
LS
Luis S.
Verified Buyer
Reviewing
ABB / General Electric THED136070WL - 70A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
3/30/26
Excellent service
Excellent service and prices easy fast and professional!!
SP
Scott P.
Verified Buyer
Reviewing
ABB / General Electric THED136050WL - 50A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
11/30/25
Product as described
Appears to be exactly what is described
SA
Samuel A. C.
Verified Buyer
Reviewing
ABB / General Electric THED136090WL - 90A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/30/25
what we needed when we needed it.
product was delivered with no issues, got the customer back online in a timely, inexpensive manner.