ABB / General ElectricTEY360ST12
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Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
ABB / General Electric TEY370ST12 Miniature Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
ABB / General Electric
TEY370ST12
Miniature Circuit Breaker
Brand
ABB / General Electric
SKU
TEY370ST12
Quantity
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ABB / General Electric TEY370ST12 - 70A 3 Pole Miniature Circuit Breaker
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Description
Part of the Q-Line family, the GE TEY370ST12 delivers 70A, 3-pole miniature circuit protection for commercial and industrial systems. It features a factory-installed 120-277VAC shunt trip for remote tripping. This bolt-on breaker mounts into GE A-Series, AE, and AS lighting panelboards, accepting 4 AWG to 1/0 AWG wire. Rated 14kAIC at 480Y/277V and 65kAIC at 120/240V, it provides fixed thermal-magnetic protection. The unit is HACR rated with a quick-make/quick-break mechanism.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TEY370ST12 |
| Series | TEY |
| Amperage | 70A |
| 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 |
| Terminal Type | Lugs |
|---|---|
| For Use With | GE A-Series Lighting Panelboards, GE AE Lighting Panelboards, GE AS Lighting Panelboards |
| Wire Gauge | 4 AWG - 1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Undervoltage Release, Padlock Attachment, Handle Lock, Mounting Base |
|---|---|
| Accessories | Load Side Lugs Included, Shunt Trip (Factory Installed) |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break |
Product FAQs
6 answersWhich panelboards are compatible with the TEY370ST12 circuit breaker?
This bolt-on breaker is designed for use in GE A-Series, AE, and AS lighting panelboards. It mounts directly to the panelboard bus using bolt-on connections.
What function does the ST12 suffix provide on this TEY series breaker?
The ST12 designation indicates a factory-installed shunt trip accessory rated for 120 to 277 Vac. This allows the breaker to be tripped remotely when a voltage signal is applied to the shunt trip coil.
What are the acceptable wire sizes for the load terminals on the TEY370ST12?
The factory-installed lugs accept copper or aluminum conductors ranging from 4 AWG to 1/0 AWG. Ensure proper torque specifications are followed during installation as outlined by the manufacturer.
Can the TEY370ST12 be utilized in direct current systems?
Yes, this breaker is rated for DC applications up to 250 Vdc, providing a 10 kA interrupting capacity for those specific installations.
How does the interrupting rating change depending on the system voltage?
The breaker provides a 65 kA interrupting capacity at 120 or 240 Vac, but this drops to 14 kA when applied to 480Y/277 Vac systems. Always verify the available fault current at the installation point.
How does the thermal magnetic trip unit function on this breaker?
The fixed thermal magnetic trip unit provides standard LI (long-time and instantaneous) protection. The thermal element handles gradual overload conditions, while the magnetic element provides immediate tripping during short circuit events.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 43 reviews.
Reviews Summary
Generated by AI from 43 most recent customer reviews
Last updated 9/22/26
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.
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Rating
43 reviews
- SAShaenon A.Verified BuyerReviewingGeneral Electric TEYL1030B 1 Pole Circuit BreakerI recommend this productRated 5 out of 5 stars9/21/26Everything was great!
Super easy and love the options and simple descriptions! Reasonable pricing too will ensure we are a reoccurring customer!
- MJmartin j.Verified BuyerReviewingABB / General Electric TEY320 - 20A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/26/26breaker replacement
fast service and great pricing .. Had this business up and running in No time ,, highly recommend SB
- CMCharles M.Verified BuyerReviewingABB / General Electric TEY320 - 20A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/4/26Just what I needed.
Received as advertised, and at a good price on time. Very satisfied.
- AMAlex M.Verified BuyerReviewingABB / General Electric TEY340 - 40A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars5/12/26SuperBreakers are great.
Another breaker ordered. Arrived on time and fulfilled.
- AMAlex M.Verified BuyerReviewingABB / General Electric TEY130 - 30A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars5/12/26Breaker Ordered
Shipped correctly and on time. We will continue to use SuperBreakers!