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ABB / General Electric TEY345 Miniature Circuit Breaker

  • 45A
  • 3 Pole
  • Bolt-On
ABB / General Electric TEY345
Miniature Circuit Breaker
Brand ABB / General Electric
SKU TEY345
Select Item Condition
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  • 45A
  • 3 Pole
  • Bolt-On

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ABB / General Electric TEY345 - 45A 3 Pole Miniature Circuit Breaker

ABB / General Electric TEY345 - 45A 3 Pole Miniature Circuit Breaker

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$254.80 In Stock

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Description

Built for robust commercial and industrial use, the GE TEY345 is a 3-pole, 45A miniature circuit breaker from the proven Q-Line family. It provides essential long-time and instantaneous protection for 3-phase electrical systems. This breaker is engineered to mount into GE A-Series, AE, and AS lighting panelboards. The bolt-on design ensures a stable connection. With an interrupting capacity of 14kAIC at 480Y/277VAC, it features a non-interchangeable trip and is UL listed for HID applications.

Specifications

Key specifications
Brand ABB / General Electric
Part Number TEY345-R
Series TEY
Amperage 45A
Poles 3
Mounting Style Bolt-On
Voltage 120VAC, 240VAC, 480Y/277VAC, 250VDC, 120/240VAC
Phase 3
AIC Rating 65kA @ 120VAC, 65kA @ 240VAC, 14kA @ 480Y/277VAC, 10kA @ 250VDC, 65kA @ 120/240VAC
Fit and installation
Terminal Type Lugs
For Use With GE A-Series Lighting Panelboards, GE AE Lighting Panelboards, GE AS Lighting Panelboards
Wire Gauge 10-4 AWG (Cu/Al)
Max Wire 4 AWG
Min Wire 10 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Auxiliary Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Handle Lock, Mounting Base
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, UL 489
Approval CSA, HACR, HID, UL
Temp Rating 40C
Construction Features HACR Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break, HID Rated

Product FAQs

9 answers
Are there higher interrupting capacity versions of the TEY345 available?

Yes. If your system requires a higher interrupting rating at 480Y/277VAC, you can upgrade to the TEYF (18kA), TEYD (25kA), TEYH (35kA), or TEYL (65kA) series circuit breakers.

Will the TEY345 come branded as ABB or General Electric?

Because ABB acquired GE Industrial Solutions, TEY series circuit breakers may feature either ABB or GE branding. Regardless of the logo printed on the front, they are manufactured to the exact same specifications and are fully interchangeable.

Can the TEY345 be used as a standalone breaker outside of a panelboard?

Yes. While primarily designed as a bolt-on branch breaker for GE lighting panels, it can be utilized in unit-mount or lug-to-lug installations when paired with the proper three-pole mounting base accessory.

Can the TEY345 be applied in direct current circuits?

Yes. In addition to its standard AC ratings, this breaker is rated to interrupt up to 10kA in 250VDC systems, making it suitable for select direct current applications.

Does the TEY345 mount to a standard DIN rail?

No. This is a bolt-on molded case circuit breaker designed specifically for bolted busbar connections in GE panelboards or specialized mounting bases. It will not clip onto a standard DIN rail.

Does the TEY345 require specialized lugs for aluminum wire?

No. The factory lugs on this breaker are dual-rated for both copper and aluminum conductors ranging from 10 AWG to 4 AWG, eliminating the need for separate hardware.

Is the TEY345 suitable for reverse feeding?

Yes. TEY series breakers are standard without line and load markings, making them suitable for reverse-feed applications where power is supplied to the lower terminals.

What is the physical width of the TEY345 breaker?

TEY series breakers feature a compact design with a 1-inch per-pole spacing, making this three-pole breaker approximately 3 inches wide overall. This compact form factor helps optimize available panel space.

Can the TEY345 be used on a 480V ungrounded Delta system?

No. The TEY345 is a slash-rated circuit breaker (480Y/277VAC). It is only suitable for use on solidly grounded Wye systems and must not be applied on ungrounded or corner-grounded Delta systems.

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Reviews

4.9
Rated 4.9 out of 5 stars
Based on 43 reviews
Reviews Summary
Customers say these circuit breakers arrive quickly and function as described. Many reviews highlight fast shipping, often within 48 hours, and reasonable pricing compared to local alternatives. Users appreciate the extensive inventory and ability to find hard-to-locate models in stock. The ordering process is described as straightforward, and products consistently arrive well-packaged and as advertised. Common feedback addresses knowledgeable staff and reliable service. A few customers note that shipping tracking information could be more detailed, though delivery timeliness remains consistent across reviews.
Rating
Ratings
43 reviews
  • SA
    Shaenon A.
    Verified Buyer
    Reviewing
    General Electric TEYL1030B 1 Pole Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/21/26
    Everything was great!

    Super easy and love the options and simple descriptions! Reasonable pricing too will ensure we are a reoccurring customer!

  • MJ
    martin j.
    Verified Buyer
    Reviewing
    ABB / General Electric TEY320 - 20A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/26/26
    breaker replacement

    fast service and great pricing .. Had this business up and running in No time ,, highly recommend SB

  • CM
    Charles M.
    Verified Buyer
    Reviewing
    ABB / General Electric TEY320 - 20A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/4/26
    Just what I needed.

    Received as advertised, and at a good price on time. Very satisfied.

  • AM
    Alex M.
    Verified Buyer
    Reviewing
    ABB / General Electric TEY340 - 40A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/12/26
    SuperBreakers are great.

    Another breaker ordered. Arrived on time and fulfilled.

  • AM
    Alex M.
    Verified Buyer
    Reviewing
    ABB / General Electric TEY130 - 30A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/12/26
    Breaker Ordered

    Shipped correctly and on time. We will continue to use SuperBreakers!