ABB - Electrification 9T51B0052 - ABB's QB single phase transformers feature encapsulated core and coils in a NEMA 3R nonventilated weatherproof enclosure. Knock outs provided on back and bottom. Mounting holes on side for easy access. Wiring compartment includes ground stud.
ABB - Electrification

9T51B0052

UPC: 783173008447

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Overview

ABB's QB Series single-phase transformers (SKU: 9T51B0052) deliver reliable power distribution with encapsulated core and coil construction, ensuring superior protection against environmental contaminants and moisture. Designed for outdoor and harsh industrial environments, these transformers feature a NEMA 3R non-ventilated weatherproof enclosure that resists rain, snow, and dust while maintaining optimal thermal performance. The rugged enclosure eliminates the need for ventilation, reducing maintenance requirements and extending service life in demanding applications. Engineered for versatility, the QB Series includes knockouts on the back and bottom for flexible conduit entry, while side-mounted mounting holes enable quick and secure installation on walls or panels. The integrated wiring compartment simplifies electrical connections with a dedicated ground stud, ensuring compliance with safety standards and reducing installation time. Ideal for commercial buildings, industrial facilities, and utility applications, ABB's QB transformers provide consistent performance in outdoor-rated installations where reliability is critical. The encapsulated design prevents moisture ingress and corrosion, making these transformers suitable for coastal regions, chemical plants, and other challenging environments. With ABB's reputation for quality and innovation, the QB Series offers a dependable solution for single-phase power distribution needs where durability and compliance with NEMA 3R standards are required.
  • Encapsulated core and coils for superior environmental protection
  • NEMA 3R non-ventilated weatherproof enclosure for outdoor use
  • Knockouts on back and bottom for flexible conduit entry
  • Side-mounted installation with mounting holes for easy access
  • Integrated ground stud in wiring compartment for safety compliance

Specifications

Enclosure
NEMA 3R
Frequency Rating
60 HZ
Frequency Rating, Maximum
60 Hz
Frequency Rating, Minimum
60 Hz
Height
11.12 in
Input Voltage
480 VAC
Insulation
IS-12
Output Voltage
120/240
Phase
1
Special Features
ABB's QB single phase transformers feature encapsulated core and coils in a NEMA 3R nonventilated weatherproof enclosure. Knock outs provided on back and bottom. Mounting holes on side for easy access. Wiring compartment includes ground stud.
Standard
Yes
Temperature Rating
40 °C
Temperature Rating, Maximum
104 F
Temperature Rating, Maximum
40 C
Temperature Rating, Minimum
104 F
Temperature Rating, Minimum
40 C
Wattage
2 KVA
Width
9.38 in
Package Dimensions (L x W x H)
6.72 IN x 9.38 IN x 11.12 IN
Package Dimensions (L x W x H)
17.0688 cm x 23.8252 cm x 28.2448 cm
Package Weight (Imperial)
45.000 L
Package Weight (Metric)
20.412 kg
ABB's QB single phase transformers feature encapsulated core and coils in a NEMA 3R nonventilated weatherproof enclosure. Knock outs provided on back and bottom. Mounting holes on side for easy access. Wiring compartment includes ground stud.

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ABB's Servicenter™ Single-Phase Integral Transformer and load center system comes equipped with an encapsulated transformer wired into rightly sized circuit breakers for both the primary and secondary transformer windings. Qualified to the seismic requirements of IEEE-693-2005 and IBC-2021 and CBC 2022. Accessible mounting flanges with keyhole slotted mounting holes to make installation easy. NEMA 3R painted enclosure. Clear, comprehensive documentation and labeling. The Servicenter system is UL Listed and is suitable for use service equipment with a 10 kAIC short circuit current rating. The load center portion of this system is ready to accept the ABB THQL plug-on circuit breakers.

9T21S1250

ABB's Servicenter™ Single-Phase Integral Transformer and load center system comes equipped with an encapsulated transformer wired into rightly sized circuit breakers for both the primary and secondary transformer windings. Qualified to the seismic requirements of IEEE-693-2005 and IBC-2021 and CBC 2022. Accessible mounting flanges with keyhole slotted mounting holes to make installation easy. NEMA 3R painted enclosure. Clear, comprehensive documentation and labeling. The Servicenter system is UL Listed and is suitable for use service equipment with a 10 kAIC short circuit current rating. The load center portion of this system is ready to accept the ABB THQL plug-on circuit breakers.
ABB's Servicenter™ Single-Phase Integral Transformer and load center system comes equipped with an encapsulated transformer wired into rightly sized circuit breakers for both the primary and secondary transformer windings. Qualified to the seismic requirements of IEEE-693-2005 and IBC-2021 and CBC 2022. Accessible mounting flanges with keyhole slotted mounting holes to make installation easy. NEMA 3R painted enclosure. Clear, comprehensive documentation and labeling. The Servicenter system is UL Listed and is suitable for use service equipment with a 10 kAIC short circuit current rating. The load center portion of this system is ready to accept the ABB THQL plug-on circuit breakers.

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ABB's Servicenter™ Single-Phase Integral Transformer and load center system comes equipped with an encapsulated transformer wired into rightly sized circuit breakers for both the primary and secondary transformer windings. Qualified to the seismic requirements of IEEE-693-2005 and IBC-2021 and CBC 2022. Accessible mounting flanges with keyhole slotted mounting holes to make installation easy. NEMA 3R painted enclosure. Clear, comprehensive documentation and labeling. The Servicenter system is UL Listed and is suitable for use service equipment with a 10 kAIC short circuit current rating. The load center portion of this system is ready to accept the ABB THQL plug-on circuit breakers.

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.