ABB / General ElectricTEF134030
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ABB / General Electric TEF134020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
ABB / General Electric
TEF134020
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TEF134020
Quantity
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ABB / General Electric TEF134020 - 20A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial power distribution, the GE TEF134020 is a 3-pole, 20A molded case circuit breaker from the legacy E-Frame family. It provides reliable thermal-magnetic protection for branch circuits and feeders. This bolt-on MCCB mounts into GE A-Series panelboards, switchboards, and motor control centers. Rated for 14kAIC at 480VAC and 18kAIC at 240VAC, it includes factory-installed TCAL14 lugs. Note that this unit has been officially replaced by the TED134020.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TEF134020-R |
| Series | TEF |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | TEF |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, GE Switchboards, Motor Control Centers |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| 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, Lug Kits |
|---|---|
| Accessories | Includes TCAL14 Lugs |
| Standards | HACR, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break |
Product FAQs
6 answersWhat equipment is the TEF134020 designed to be installed in?
This legacy E-Frame breaker is engineered for bolt-on installation into GE A-Series panelboards, GE switchboards, and motor control centers.
Is there a direct replacement for the legacy TEF134020?
Yes. The TEF134020 is a legacy E-Frame breaker that has been officially superseded by the TED134020. The TED134020 serves as a direct drop-in replacement for retrofits and upgrades in existing GE panelboard systems.
What type of conductors are compatible with the terminals on the TEF134020?
The factory-installed lugs are rated for both copper and aluminum conductors, accepting wire sizes from 14 AWG up to 8 AWG.
Is the TEF134020 suitable for direct current (DC) circuits?
Yes, alongside its standard AC ratings, this breaker is certified for use in 250VDC systems with a 10kAIC interrupting capacity.
Does the TEF134020 allow for field-adjustable trip settings?
No, the thermal magnetic trip unit features fixed thermal and fixed magnetic settings for its long-time and instantaneous (LI) protection. It cannot be adjusted in the field.
What type of fault protection does the TEF134020 provide?
It utilizes a thermal magnetic trip unit to provide both long-time thermal protection against overloads and instantaneous magnetic protection against short circuits.
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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!