ABB - Electrification TEY330ST12 - 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. TEY breakers are available in 1, 2, and 3 pole versions and can be ordered with auxiliary contact and shunt trip accessories. MCCB 3P 30A W/120-277VAC SHUNT TRIP
ABB - Electrification

TEY330ST12

UPC: 783164196634

Contact for Pricing

Overview

The ABB TEY330ST12 is a robust, three-pole, 30-ampere molded case circuit breaker (MCCB) designed for reliable protection of grounded 480Y/277 Vac electrical systems. As part of the compact TEY family, this breaker offers a 1-inch wide per pole footprint, making it ideal for space-constrained applications, particularly within lighting panelboards, including ABB A-Series. Its "bolt-on" mounting design, facilitated by optional TEY3B and TEY3B125 mounting bases, ensures suitability for varied lug-lug connected applications. Engineered for safety and dependability, the TEY330ST12 features advanced Quick-make / Quick-break mechanisms that minimize arcing and enhance operational safety. The common trip bars ensure that all poles trip simultaneously, preventing single-phasing issues. A clearly visible trip indication provides immediate feedback on breaker status, crucial for quick troubleshooting and maintenance. This specific model includes a shunt trip accessory, operable with 120-277 Vac, allowing for remote tripping capabilities, which is a significant advantage in automated or safety-critical environments. With a short circuit rating of 14 kAIC at 480/277 Vac, the TEY330ST12 provides essential overcurrent protection. It is also UL listed as HACR (Heating, Air Conditioning, Refrigeration) rated, expanding its applicability in HVAC systems. The breaker is constructed for use with solid or stranded conductors, accommodating wire sizes from #10 to #4 AWG. Manufactured in the USA, the TEY330ST12 embodies ABB's commitment to quality and performance in industrial electrical distribution.
  • 3-Pole, 30 Ampere Molded Case Circuit Breaker (MCCB)
  • Designed for grounded 480Y/277 Vac systems
  • Compact 1-inch wide per pole footprint
  • Includes 120-277 Vac Shunt Trip accessory for remote tripping
  • Quick-make / Quick-break mechanisms and common trip bars for safety and reliability
  • UL listed HACR (Heating, Air Conditioning, Refrigeration) rated
  • Bolt-on mounting design for lug-lug applications
  • Short circuit rating of 14 kAIC @ 480/277 Vac
  • Suitable for wire sizes #10-#4 AWG
  • Manufactured in the USA

Specifications

Amperage Rating
30A
Application
Thermal Magnetic
Connection
14-8 kcmil / 12-8 kcmil
Connection Type
Lug-lug
Current Rating
30 A
Frequency
60 Hz
Interrupt Rating
14kA@277 Vac / 65kA@120 Vac / 65kA@120/240 Vac / 65kA@240 Vac
Load Rating
HACR / HID
Material
Molded Case
Mounting Type
Bolt-On
Number Of Poles
3
Poles
3
Poles
3P
Series
TEY
Size
1 inch per pole
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. TEY breakers are available in 1, 2, and 3 pole versions and can be ordered with auxiliary contact and shunt trip accessories. MCCB 3P 30A W/120-277VAC SHUNT TRIP
Standard
E11592
Trip Range
Non-Interchangeable
Trip Range, Maximum
Non-Interchangeable
Trip Range, Minimum
Non-Interchangeable
Trip Type
LI
Voltage Rating
480Y/277 VAC
Package Dimensions (L x W x H)
4 IN x 3 IN x 5.25 IN
Package Dimensions (L x W x H)
10.16 cm x 7.62 cm x 13.335 cm
Package Weight (Imperial)
2.056 L
Package Weight (Metric)
0.933 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.