ABB / General ElectricTEF134090
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ABB / General Electric TEF134100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
ABB / General Electric
TEF134100
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TEF134100
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ABB / General Electric TEF134100 - 100A 3 Pole Molded Case Circuit Breaker
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Description
Serving commercial and industrial facilities, this 100A E-Frame molded case circuit breaker delivers robust thermal-magnetic protection. It features a non-interchangeable trip unit and quick-make, quick-break mechanisms for consistent operation. The bolt-on design mounts into GE A-Series panelboards, switchboards, and motor control centers. Rated for 14kAIC at 480VAC, it includes factory-installed TCAL15 lugs, supports reverse feed applications, and is cross-referenced with the TED134100.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TEF134100-R |
| Series | TEF |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | GE A-Series Panelboards, GE Switchboards, Motor Control Centers |
| Wire Gauge | 3-3/0 AWG (Cu), 1-3/0 AWG (Al) |
| Max Wire | 3/0 AWG |
| Min Wire | 3 AWG (Cu), 1 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kit (TCAL15) |
|---|---|
| Accessories | Lugs Included (TCAL15) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersIs the TEF134100 still in active production?
The TEF series is a legacy E-frame molded case circuit breaker. It has been officially replaced by the TED134100, which shares the exact same physical footprint and electrical ratings for direct retrofitting in existing GE distribution systems.
Which panelboards and enclosures accept the TEF134100?
This breaker is engineered to mount directly into GE A-Series panelboards, GE switchboards, and standard motor control centers that are configured for legacy E-frame bolt-on breakers.
What are the wiring requirements for the factory-installed lugs?
The standard lugs accept 3 to 3/0 AWG copper conductors or 1 to 3/0 AWG aluminum conductors. When terminating aluminum wire, electricians must apply a manufacturer-approved joint compound before torquing the lugs to the specifications listed on the breaker faceplate.
Are the trip thresholds adjustable on the TEF134100?
No, this breaker features a non-interchangeable trip unit with fixed thermal and fixed magnetic elements. The Long-Time (L) overload protection and Instantaneous (I) short-circuit protection are factory-calibrated and cannot be field-adjusted.
Can the TEF134100 be reverse fed in a panel?
Yes, this breaker supports reverse feed applications. It does not have line or load restrictions printed on the collar, allowing power to be supplied from either the top or bottom terminals based on the enclosure layout.
Why is a bolt-on connection required for this breaker type?
The bolt-on mounting style secures the breaker directly to the panel busbars using mechanical fasteners. This provides a rigid, high-integrity connection that prevents loosening and arcing in high-vibration environments like motor control centers.
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Reviews
Review summary
Customers rate this product 4.5 out of 5 based on 2 reviews.
Total 5 star reviews: 1 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- PEPreferred E.Verified BuyerReviewingABB / General Electric TEF134100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/27/26Breaker is in great shape
Professional operation for description and delivery. SuperBreakers is our go to for all breakers!
- CMCalvin M.Verified BuyerReviewingABB / General Electric TEF113020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars6/30/26Lifesavers
We repair a lot of old electrical systems that require old breakers. Superbreakers haven't let us down yet. Their response time and delivery time is great! They have been lifesavers!