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ABB / General Electric TEYF240 Miniature Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
ABB / General Electric
TEYF240
Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
TEYF240
Quantity
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ABB / General Electric TEYF240 - 40A 2 Pole Miniature Circuit Breaker
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Description
Rated for 40 amps, the TEYF240 is a 2-pole miniature circuit breaker optimized for commercial and industrial lighting panels. It provides robust thermal-magnetic trip protection for branch circuits on grounded 480Y/277 VAC electrical systems. This compact breaker mounts into GE A-Series panelboards using a reliable bolt-on connection. It accepts larger 10-4 AWG wiring through its standard load side lugs. Delivering an 18 kAIC rating at 480Y/277V, the unit features clear trip indication.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | TEYF |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 277VAC, 480Y/277VAC, 250VDC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 18kA @ 277VAC, 18kA @ 480Y/277VAC, 10kA @ 250VDC, 65kA @ 120/240VAC |
| Frame Type | TEYF |
|---|---|
| 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, Handle Lock |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5.1, UL 489 |
| Approval | CSA, HACR, HID, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Quick-Make/Quick-Break, Common Trip, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
7 answersWhich panelboards are compatible with the TEYF240 circuit breaker?
This bolt-on breaker is designed specifically for use in GE A-Series lighting panelboards. It is not interchangeable with standard residential plug-on load center breakers.
What wire sizes and materials are accepted by the lugs on this breaker?
The factory-installed lugs accept 10 to 4 AWG wire and are rated for both copper (Cu) and aluminum (Al) conductors. Always verify proper torque specifications during installation.
Why is this breaker listed under both ABB and General Electric?
ABB acquired GE Industrial Solutions. The TEYF240 is the exact same component, manufactured to the same specifications, regardless of whether it carries the GE or ABB brand name.
How does the TEYF frame differ from standard TEY breakers?
The F designation indicates a specific interrupting capacity tier within the GE A-Series panelboard ecosystem. The TEYF240 provides an 18kAIC rating at 480/277VAC, whereas standard TEY breakers typically offer 14kAIC at the same voltage.
Does the TEYF240 require a specific mounting hardware kit?
It features a direct bolt-on mounting style that secures directly to the busbar of compatible GE A-Series panelboards. No separate mounting kit is required for standard installation.
What type of trip protection does the TEYF240 provide?
It utilizes a thermal-magnetic trip unit with fixed long-time and instantaneous (LI) functions to protect against both sustained overloads and sudden short circuits.
Is the TEYF240 suitable for reverse feed applications?
Yes, this breaker is suitable for reverse feed applications, allowing it to be back-fed when required by the panel configuration.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 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
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2 reviews
- ACAlice C.Verified BuyerReviewingABB / General Electric TEYF350 - 50A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/17/26NA
NA
- MNMaxam N. A. I.Verified BuyerReviewingABB / General Electric TEYF370 - 70A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/25Best Pricing
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