ABB TEY Series Two-Pole Bolt-O...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$336.86
ABB TEY Series Two-Pole Bolt-On Circuit Breaker, Thermal Magnetic

ABB TEY Series Two-Pole Bolt-On Circuit Breaker, Thermal Magnetic

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Model: TEY330
$336.86

In Stock (leaves warehouse same day if ordered before 3pm ET)

$336.86
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ABB TEY Series Two-Pole Bolt-On Circuit Breaker, Thermal Magnetic

The ABB TEY is a one-inch-wide-per-pole, compact, bolt-on circuit breaker engineered for grounded 480Y/277 Vac electrical distribution systems. This two-pole, thermal magnetic breaker uses the TEY bolt-on mounting base accessory, making it suitable as a lug-lug breaker across varied panelboard applications. Part of the TEY / Q-Line (Bolt-On) family, it is backed by a quick-make/quick-break mechanism, a common trip bar, and easy-to-spot trip indication, delivering dependable overcurrent protection with interrupt ratings of 14kA@277 Vac / 65kA@120 Vac / 65kA@120/240 Vac / 65kA@240 Vac.

Key Features

  • Bolt-On Mounting: Uses the TEY bolt-on mounting base accessory, suitable for lug-lug breaker applications.
  • Two-Pole Configuration: Built as a 2-pole breaker with a common trip bar linking both poles for coordinated tripping.
  • Thermal Magnetic Protection: LI trip type with a thermal magnetic application for reliable overcurrent and short-circuit protection.
  • Quick-Make / Quick-Break Mechanism: Fast-acting mechanism paired with easy-to-spot trip indication for safety and reliability.
  • Interrupt Rating: Rated 14kA@277 Vac / 65kA@120 Vac / 65kA@120/240 Vac / 65kA@240 Vac for demanding electrical systems.
  • Wire Connection Range: Accepts 14-8 kcmil / 12-8 kcmil conductors for flexible field wiring.
  • Compact Footprint: One-inch-wide-per-pole design conserves panelboard space.
  • Grounded System Compatibility: Designed for use on grounded 480Y/277 Vac electrical distribution systems.

Certifications & Compliance

  • UL Standard E11592

Technical Specifications

Typical Applications

  • Commercial and Industrial Electrical Panels
  • Grounded 480Y/277 Vac Distribution Systems
  • Panelboard and Load Center Wiring
  • Q-Line Bolt-On Panel Retrofits
  • Renovation and New Construction Electrical Projects

Why ABB?

ABB's TEY / Q-Line (Bolt-On) circuit breakers combine a compact, one-inch-per-pole bolt-on design with a quick-make/quick-break mechanism and common trip bar for coordinated, code-compliant protection on grounded 480Y/277 Vac systems. With interrupt ratings up to 65kA and construction to UL Standard E11592, these thermal magnetic breakers are built for reliable performance in commercial and industrial panelboards, giving electrical professionals a trusted bolt-on option for new installations and retrofits alike.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Circuit Breaker
Series:
TEY
Configuration:
2-Pole
Voltage Rating:
480Y/277 Vac
Standards:
UL E11592
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Circuit Breakers

ABB TEY330 – Frequently Asked Questions

1) Can I use an ABB TEY breaker on a 480Y/277V panel?
That's exactly what the TEY is built for. It's rated 480Y/277 Vac and intended for grounded 480Y/277 Vac distribution systems. On that system the interrupting rating is 14kA at 277 Vac. On lower-voltage systems it goes to 65kA at 120 Vac, 65kA at 120/240 Vac and 65kA at 240 Vac. If your service is an ungrounded or corner-grounded delta, the TEY is not the right choice, since the rating is stated for grounded wye service.
2) Is the TEY a plug-in or bolt-on breaker?
Bolt-on. The TEY mounts using the TEY bolt-on mounting base accessory, so it fastens to the panelboard bus rather than clipping on. That means it will not drop into a plug-in load center that has no bolt-on provision, and you need a panel interior prepped for the Q-Line bolt-on pattern.
3) If one pole faults on a two-pole TEY, do both poles open?
Yes. The TEY two-pole and three-pole breakers use a common trip bar linking the poles, so an overcurrent on any one pole trips the whole device. That's what you need for a multi-wire branch circuit or any 277/480V line-to-line load where simultaneous disconnect is required.
4) Can I use a TEY breaker to replace a breaker in an existing Q-Line bolt-on panel?
Yes, that is one of the stated applications: Q-Line bolt-on panel retrofits. The TEY belongs to the TEY / Q-Line (Bolt-On) family and mounts with the TEY bolt-on base, so it goes back into panelboards prepped for that bolt-on pattern. Match the pole count and amperage of the device you're pulling out, and confirm the panel is a grounded 480Y/277 Vac system before you order.
5) Is a Square D Multi9 C60 breaker a substitute for an ABB TEY bolt-on breaker?
No. The ABB TEY is a bolt-on breaker that mounts to a panelboard interior using the TEY bolt-on mounting base accessory, one inch wide per pole, and is built for grounded 480Y/277 Vac distribution. The Square D C60 is a miniature circuit breaker that mounts to DIN rail, so it belongs in a DIN rail enclosure or control panel rather than a bolt-on panelboard. The two are not interchangeable in the same interior; choose the TEY when the panel is drilled and tapped for bolt-on breakers.
6) What should I use instead of an ABB TEY breaker if the load is larger than 100 amperes?
The ABB TEY tops out at 100 amperes in both two-pole and three-pole form, with TEY2100 covering 100 A two-pole and TEY3100 covering 100 A three-pole. For a feeder above that range, step up to a molded case breaker such as the Square D PowerPacT B thermal magnetic circuit breaker, which is the same thermal magnetic protection type in a molded case frame rather than a one-inch-per-pole plug-in-style bolt-on. Confirm the panel or enclosure is prepared for a molded case frame, since it will not land on a TEY bolt-on base.
7) For an I-Line panelboard, can I order an ABB TEY breaker?
No. The ABB TEY uses the TEY bolt-on mounting base accessory and is designed for TEY / Q-Line bolt-on panelboard interiors. An I-Line panelboard uses a plug-on bus connection, and the breaker for that interior is a unit such as the Square D PowerPacT Q I-Line circuit breaker. Match the breaker to the interior type first, then the pole count and ampere rating.
8) What wire sizes will the ABB TEY breaker lugs accept?
The TEY terminals take 14-8 kcmil / 12-8 kcmil conductors, so standard branch-circuit copper from #14 up through #8 lands directly. It's supplied as a lug-lug breaker. For feeder runs above that conductor range you're outside what these terminals will take.
9) How much panel space does a two-pole TEY breaker take up?
One inch per pole, so a two-pole TEY occupies two inches of bus, and a three-pole occupies three. That one-inch-per-pole footprint is what lets you get full pole counts into a tight panelboard during a retrofit.
10) What amperages does the ABB TEY breaker come in?
TEY covers 15, 20, 30, 35, 40, 50, 60, 70, 80, 90 and 100 amperes depending on pole count. Two-pole examples run TEY215 through TEY2100; three-pole run TEY315 through TEY3100; single-pole includes TEY115 and TEY135. The catalog number reads brand series, then pole count, then amperage, so TEY230 is a two-pole 30A.
11) Is the TEY breaker thermal magnetic or electronic trip?
Thermal magnetic, with an LI trip characteristic: the thermal element handles sustained overload and the magnetic element handles short circuit. There is no adjustable electronic trip unit here. It also has a quick-make/quick-break mechanism and visible trip indication, so a maintenance tech can tell a tripped breaker from an off breaker at the panel.
12) Is the ABB TEY circuit breaker UL listed?
The TEY is built to UL Standard E11592, which is the listing referenced for the series. That's the file a specifier or AHJ will want cited on a commercial or industrial panelboard submittal.
13) What's the difference between an ABB TEY and a Square D PowerPacT B breaker?
Different mounting and different application. TEY is a one-inch-per-pole bolt-on branch breaker for Q-Line style panelboards on grounded 480Y/277 Vac systems, in ratings from 15A to 100A. The Square D PowerPacT B is a molded case thermal magnetic breaker in a separate frame, typically used where you need a main or feeder device rather than a panelboard branch position. If you are feeding a DIN rail control panel instead of a panelboard, neither fits, and a Square D C60 UL489 miniature circuit breaker is the DIN rail mount option.
14) Both the ABB TEY and the Square D PowerPacT B are thermal magnetic - what is the practical difference?
Both use thermal magnetic overcurrent protection. The ABB TEY is a one-inch-wide-per-pole bolt-on breaker with a common trip bar across poles, a quick-make/quick-break mechanism, trip indication, and wire terminations accepting 14-8 kcmil and 12-8 kcmil conductors, rated for grounded 480Y/277 Vac systems and built to UL E11592. The Square D PowerPacT B is a molded case breaker in its own frame rather than a per-pole bolt-on width. The deciding factor is usually the panelboard interior and the space per pole, not the trip technology.
15) I need a UL 489 branch breaker on DIN rail in a control panel - is the ABB TEY the right part?
For DIN rail mounting, look to a UL 489 miniature circuit breaker such as the Square D C60. The ABB TEY has no DIN rail provision; it is a bolt-on breaker that fastens to a panelboard interior through the TEY bolt-on mounting base accessory. If the enclosure has a bolt-on interior rather than rail, the TEY is the correct family, available from 15 through 100 amperes in one-, two- and three-pole versions.
How fast can I get the ABB TEY330 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ABB TEY330 come with a warranty?
Absolutely. The ABB TEY330 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the ABB TEY330?
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