ABB / General ElectricTEYH2050B
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ABB / General Electric TEYH2040B Miniature Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
ABB / General Electric
TEYH2040B
Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
TEYH2040B
Quantity
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ABB / General Electric TEYH2040B - 40A 2 Pole Miniature Circuit Breaker
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Description
Belonging to the Q-Line family, this 40A miniature breaker serves commercial and industrial distribution needs. It features a non-interchangeable thermal-magnetic trip mechanism for reliable overcurrent protection. The unit installs into GE A-Series lighting panelboards using a secure bolt-on mounting style. It accepts 10-4 AWG copper or aluminum wire via standard load lugs. With a robust 35kA interrupting rating at 480Y/277VAC, it handles demanding fault currents and includes a HACR rating.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | TEYH |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 250VDC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 10kA @ 250VDC, 65kA @ 120/240VAC |
| Frame Type | TEY |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Lighting Panelboards |
| Wire Gauge | 10-4 AWG (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 10 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, Bell Alarm, Padlock Attachment |
|---|---|
| Accessories | Load Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, HID, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Common Trip, Quick-Make/Quick-Break, Non-Interchangeable Trip |
Product FAQs
8 answersWhich panelboards are compatible with the TEYH2040B circuit breaker?
This bolt-on breaker is designed specifically for use in GE A-Series lighting panelboards. It mounts directly to the panel bus for secure electrical connections in commercial and industrial applications.
Can I install this breaker in a standard residential load center?
No. The TEYH2040B is a bolt-on molded case circuit breaker intended for commercial A-Series panelboards. It will not fit in standard residential plug-on or Q-Line load centers.
What is the difference between the TEY2040B and the TEYH2040B?
The H in the TEYH series indicates a higher interrupting rating. While a standard TEY breaker typically offers 14kAIC at 277/480VAC, the TEYH2040B provides a 35kAIC rating at the same voltage, making it suitable for systems with higher available fault currents.
Is this breaker suitable for direct current applications?
Yes, the TEYH2040B is rated for use in DC circuits up to 250VDC, where it provides an interrupting capacity of 10kAIC.
What type of wire can be used with the lugs on this 40A breaker?
The factory installed lugs accept both copper and aluminum conductors ranging from 10 AWG to 4 AWG. Ensure you apply the correct torque specifications as listed on the breaker label during installation to prevent thermal issues.
Does this breaker require a specific mounting hardware kit?
The breaker bolts directly to the interior bus of an A-Series panelboard. Mounting screws are typically integrated or provided with the breaker, but you must ensure the panel interior is configured to accept TEY frame breakers.
Has the manufacturer for the TEYH2040B changed?
ABB acquired GE Industrial Solutions in 2018. As a result, you may see this exact breaker branded as either General Electric or ABB, but the physical dimensions, mounting style, and electrical performance remain identical.
What safety procedures should be followed before installing a bolt-on breaker?
Always de-energize the panelboard before installing or servicing bolt-on breakers. Verify the power is off using a properly rated voltage tester, and follow all OSHA lockout and tagout procedures to ensure the bus remains unpowered during installation.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
4 reviews
- EHEvan H.Verified BuyerReviewingABB / General Electric TEYH3060B - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/15/26TEYH3060B
Just what we were looking for, shipped immediately.
- LLynnReviewingABB / General Electric TEYH3100B - 100A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/14/23Exactly right
Fast shipping. Well packaged.
- WSWilliam S.ReviewingABB / General Electric TEYH3100B - 100A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/18/22Very easy web site to order from
Great in stock item and the web site keeps update inventories.
- WMWesley M.ReviewingABB / General Electric TEYH3020B - 20A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars11/18/20Great service and fast shipping!
Great service and fast shipping!