ABB - Electrification TEYD3025B - The TEY is a one-inch wide per pole, compact, "bolt-on" circuit breaker for use on grounded 480Y/277 Vac systems. The bolt-on mounting base accessory makes the TEY suitable for varied applications as a lug-lug breaker. All TEY circuit breakers feature Quick-make / Quick-break mechanisms, common trip bars, and easy to spot trip indication to ensure safety and reliability. TEYD breakers are available in 1, 2, and 3 pole versions 2&3 pole versions can be ordered with auxiliary contact, shunt trip, undervoltage release, or bell alarm accessories. 25A 3POLE 25KA 480/277 CKT BKR
ABB - Electrification

TEYD3025B

UPC: 783164461732

Contact for Pricing

Overview

The ABB TEYD3025B is a 3-pole, 25A thermal-magnetic circuit breaker designed for grounded 480Y/277V AC systems. Part of ABB’s TEYD series, it features a compact one-inch-per-pole bolt-on design with a 25kA interrupting rating at 480/277V, ensuring reliable protection in industrial and commercial panelboards. This breaker is UL listed and suitable for applications including lighting panels, HVAC systems, and motor circuits. Key specifications include: - **Current Rating:** 25A - **Poles:** 3 - **Interrupting Rating:** 25kA at 480/277V - **Voltage Rating:** 480Y/277V AC - **Mounting:** Bolt-on (compatible with TEY3B or TEY3B125 mounting bases for lug-lug applications) - **Wire Range:** #10–#4 AWG - **Trip Mechanism:** Thermal-magnetic with Quick-make/Quick-break operation - **Trip Indication:** Visible trip flag for fault diagnosis The TEYD3025B supports optional accessories for enhanced functionality, including auxiliary contacts (TEYXASL/TEYXASR), shunt trip (TEYXS1–TEYXS9), undervoltage release (TEYXU1–TEYXU9), and bell alarm (TEYXBA1). These accessories enable remote monitoring, automatic tripping, and audible fault notification, making the breaker adaptable to diverse system requirements. The breaker is also HACR rated for heating, air conditioning, and refrigeration applications, and UL listed for HID lighting circuits up to 50A. Ideal for space-constrained installations, the TEYD3025B integrates seamlessly with ABB’s A-Series lighting panels and other panelboard systems. Its non-interchangeable trip design ensures system integrity, while the bolt-on mounting base simplifies installation and replacement. Trusted for critical electrical distribution systems, the TEYD3025B delivers consistent performance and safety in demanding environments.
  • 25A, 3-pole thermal-magnetic circuit breaker for 480Y/277V AC systems
  • 25kA interrupting rating at 480/277V for reliable fault protection
  • Compact one-inch-per-pole bolt-on design for space-constrained installations
  • Compatible with TEY3B/TEY3B125 mounting bases for lug-lug applications
  • UL listed, HACR rated, and supports auxiliary contacts, shunt trip, and undervoltage release accessories

Specifications

Amperage Rating
25A
Application
Thermal Magnetic
Certifications
UL listed
Connection
#10-#4
Connection Type
Lug-lug
Current Rating
25 A
Current Rating
25A
Frame
TEYD
Interrupt Rating
65kA@120/240 Vac, 65kA@240 Vac,25kA@480Y/277 Vac
Interrupting Capacity
25kA
Mounting Type
Bolt-On
Number Of Poles
3
Poles
3
Series
TEY
Special Features
The TEY is a one-inch wide per pole, compact, "bolt-on" circuit breaker for use on grounded 480Y/277 Vac systems. The bolt-on mounting base accessory makes the TEY suitable for varied applications as a lug-lug breaker. All TEY circuit breakers feature Quick-make / Quick-break mechanisms, common trip bars, and easy to spot trip indication to ensure safety and reliability. TEYD breakers are available in 1, 2, and 3 pole versions 2&3 pole versions can be ordered with auxiliary contact, shunt trip, undervoltage release, or bell alarm accessories. 25A 3POLE 25KA 480/277 CKT BKR
Standard
E11592
Trip Range
Yes
Trip Range, Maximum
Yes
Trip Range, Minimum
Yes
Trip Type
LI
Voltage Rating
480/277 VAC
Voltage Rating
480Y/277 VAC
Package Dimensions (L x W x H)
5.375 IN x 3 IN x 3.5 IN
Package Dimensions (L x W x H)
13.6525 cm x 7.62 cm x 8.89 cm
Package Weight (Imperial)
3.250 L
Package Weight (Metric)
1.474 kg

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Frequently Asked Questions about ABB - Electrification

What certifications and standards do ABB - Electrification products comply with?

ABB - Electrification products comply with a comprehensive range of international certifications and standards, including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products meet critical international standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, and marine classification standards from Bureau Veritas, DNV, and Lloyd's Register of Shipping.

What industries and applications are ABB - Electrification products used for?

ABB - Electrification products are engineered for critical applications across multiple industries, including Energy, Oil & Gas, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their solutions cover essential electrical infrastructure needs such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems designed for high-reliability environments with a strong focus on sustainability, efficiency, and safety.

What technical support does ABB - Electrification offer?

ABB - Electrification offers comprehensive technical support through multiple channels, including a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services encompass 24/7/365 emergency services, on-site support, remote monitoring and diagnostics, installation and commissioning, equipment assessments, repair coordination, and multi-vendor technical assistance. Customers can also access resources like personnel safety training, disaster recovery support, and service agreements tailored to their specific electrification needs.

What are the main product lines offered by ABB - Electrification?

ABB - Electrification offers a comprehensive range of electrical distribution and protection products, including circuit monitoring systems, panelboards, switchgear, motor control centers, circuit breakers, softstarters, and power distribution solutions. Key product lines span low and medium voltage applications across utilities, commercial, industrial, healthcare, and manufacturing sectors, with specialized offerings like the ReliaGear® panelboards, SMISSLINE TP bus systems, and Ekip UP protection and metering relays.

What are the key features of ABB - Electrification products?

ABB - Electrification products feature advanced integrated design elements that enhance industrial performance and reliability. Key features include harmonics and EMC design, integrated DC choke, removable terminals for fast installation, USB ports for troubleshooting, and integrated Safe Torque Off (STO) functionality. The products deliver superior motor control capabilities, support both induction and permanent magnet motors, and offer robust operational features like side-by-side mounting without derating and operation at temperatures up to 45°C. Additionally, ABB's Electrification solutions emphasize digital innovation, with technologies like Novolink enabling predictive maintenance, enhanced analytics, and seamless system integration.

What communication protocols do ABB - Electrification products support?

ABB - Electrification products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with support for various network topologies and high-speed data transmission up to 100 Mbps.

What environmental ratings do ABB - Electrification products have?

ABB - Electrification products feature robust environmental ratings across multiple standards, including IP54 to IP66 protection levels and NEMA Type 1 to Type 4X enclosures. These ratings ensure equipment can withstand challenging industrial environments, providing dust-tight, water-resistant, and corrosion-resistant protection for indoor and outdoor applications.

What accessories are available for ABB - Electrification products?

ABB - Electrification offers a comprehensive range of accessories across multiple product lines, including auxiliary contact blocks, signaling contacts, shunt trips, undervoltage releases, electronic timers, interlocks, interface relays, mounting pieces, terminal blocks, and connection accessories. These accessories are designed to enhance functionality, improve connectivity, and provide additional protection for industrial control systems, with many accessories being compatible with SMISSLINE TP plug-in distribution systems and Unifix AD busbar systems.

How are ABB - Electrification products typically installed?

ABB - Electrification products are installed through a professional, systematic process that includes precise equipment verification, secure electrical connections, and comprehensive testing. Installation typically involves verifying foundation requirements, assembling equipment, connecting busbars and control cables, establishing earthing systems, and conducting thorough pre-commissioning and commissioning tests to ensure optimal performance, reliability, and safety.

What is ABB - Electrification's warranty policy?

ABB - Electrification offers a standard 1-year factory warranty for most electrification products, with options to extend warranty coverage up to 5 years for specific product lines like low voltage circuit breakers. Extended warranty requires online registration through ABB's Extended Warranty Tool, which verifies the product application and provides additional coverage for manufacturing defects and factory-mounted accessories.