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ABB / General Electric TEYF120 Miniature Circuit Breaker

  • 20A
  • 1 Pole
  • Bolt-On
ABB / General Electric TEYF120
Miniature Circuit Breaker
Brand ABB / General Electric
SKU TEYF120
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  • 20A
  • 1 Pole
  • Bolt-On

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ABB / General Electric TEYF120 - 20A 1 Pole Miniature Circuit Breaker

ABB / General Electric TEYF120 - 20A 1 Pole Miniature Circuit Breaker

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$272.60 In Stock

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Description

A reliable solution for commercial branch circuit protection, the GE TEYF120 is a single-pole, 20A thermal-magnetic breaker. Part of the Q-Line family, it supports reverse feed applications. Built for seamless integration, it installs into GE A-Series lighting panelboards. The bolt-on design ensures a secure connection. Rated at 18kAIC at 277V, this breaker carries HACR, HID, and SWD ratings, making it ideal for HVAC equipment, high-intensity discharge lighting, and switching duty.

Specifications

Key specifications
Brand ABB / General Electric
Part Number TEYF120
Series TEYF
Amperage 20A
Poles 1
Mounting Style Bolt-On
Voltage 120VAC, 277VAC, 125VDC
Phase 1
AIC Rating 65kA @ 120VAC, 18kA @ 277VAC, 10kA @ 125VDC
Fit and installation
Frame Type TEY
Terminal Type Lugs
For Use With GE A-Series Lighting Panelboards
Wire Gauge 14-10 AWG (Cu/Al)
Max Wire 10 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Padlock Attachment, Handle Lock
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5.1, UL 489
Approval CSA, HACR, HID, SWD, UL
Temp Rating 40C
Construction Features HACR Rated, HID Rated, Quick-Make/Quick-Break, Non-Interchangeable Trip, Reverse Feed

Product FAQs

7 answers
Which panelboards accept the TEYF120 circuit breaker?

This bolt-on breaker is engineered for GE A-Series and ABB ReliaGear lighting panelboards. It can also be adapted for standalone lug-to-lug applications using a separate TEY3B mounting base.

What is the difference between standard TEY and TEYF breakers?

The difference lies in the short-circuit interrupting capacity. A standard TEY120 is rated for 14kA at 277VAC, whereas the TEYF120 provides an upgraded 18kA rating at the same voltage.

What is the recommended tightening torque for the lug terminals?

For the accepted wire sizes of 14 AWG to 10 AWG, the manufacturer specifies a terminal tightening torque of 35 in-lb.

Is it safe to backfeed or reverse feed the TEYF120?

Yes. TEYF series breakers are reverse-feed capable, meaning they can be safely wired with the supply power connected to either the line or load terminals.

Can this breaker handle direct current (DC) loads?

Yes. The TEYF120 carries a direct current rating of 125VDC, making it suitable for control circuits and other specific DC applications requiring up to a 10kA fault rating.

Why might this breaker arrive with ABB branding instead of GE?

ABB acquired GE Industrial Solutions in 2018. As a result, current production TEYF breakers are functionally identical but may feature ABB logos, GE logos, or dual branding depending on the manufacture date.

What are the direct upgrades if I need a higher interrupting capacity than 18kA?

If your panel requires a higher fault rating at 277VAC, you can install the TEYD120 (25kA), TEYH120 (35kA), or TEYL120 (65kA). These alternatives share the exact same physical dimensions and panelboard compatibility as the TEYF120.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Total 5 star reviews: 2
Total 4 star reviews: 0
Total 3 star reviews: 0
Total 2 star reviews: 0
Total 1 star reviews: 0
Rating
Ratings
2 reviews
  • AC
    Alice C.
    Verified Buyer
    Reviewing
    ABB / General Electric TEYF350 - 50A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/17/26
    NA

    NA

  • MN
    Maxam N. A. I.
    Verified Buyer
    Reviewing
    ABB / General Electric TEYF370 - 70A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/4/25
    Best Pricing

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