ABB - Electrification Signature Partner Distributor
ABB - Electrification 9T51B0073 - 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

9T51B0073

UPC: 783173008898


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Specification Sheet

Contact for Pricing

Overview

ABB QB Single Phase Transformer (SKU: 9T51B0073) is a general-purpose, encapsulated transformer designed for reliable single-phase power conversion in industrial and commercial environments. The unit features a fully encapsulated core and coils, providing superior protection against moisture, dust, and corrosive elements—critical for outdoor or exposed installations. Housed in a NEMA 3R non-ventilated, weatherproof enclosure, the QB transformer ensures dependable operation in harsh conditions, including protection against falling rain and sleet. The enclosure includes knockouts on the back and bottom for flexible conduit entry and side mounting holes for simplified installation. A ground stud in the wiring compartment ensures secure electrical connections. This transformer is ideal for general power distribution, HVAC systems, lighting circuits, and motor control applications where environmental protection is essential. Manufactured in the USA by ABB Electrification, the QB transformer meets stringent quality standards for durability and performance. The NEMA 3R enclosure is specifically designed for outdoor use, offering reliable operation in exposed locations without the need for additional ventilation. Unlike other variants in the QB series (e.g., ENCX2W117C6 or ENCX1W114C2, which feature NEMA 12/3R enclosures with pilot device knockouts and space for control power transformers), this model (9T51B0073) is optimized for general-purpose applications requiring a compact, weather-resistant solution. The encapsulated design eliminates the need for liquid insulation, reducing maintenance and enhancing safety. With a focus on practicality and reliability, the ABB QB transformer delivers consistent power conversion where environmental protection and ease of installation are priorities.
  • Fully encapsulated core and coils for protection against moisture, dust, and corrosion
  • NEMA 3R non-ventilated, weatherproof enclosure for outdoor installations
  • Knockouts on back and bottom for flexible conduit entry; side mounting holes for easy installation
  • Ground stud in wiring compartment for secure electrical connections
  • Suitable for general power distribution, HVAC, lighting, and motor control applications

Specifications

Connection Type
Screw Terminal
Enclosure
NEMA 3R
Frequency Rating
60 HZ
Frequency Rating, Maximum
60 Hz
Frequency Rating, Minimum
60 Hz
Height
11.12 in
Input Voltage
600 VAC
Insulation
IS-12
Material
Epoxy Encapsulated
Material
Encapsulated
Mounting Type
Side mounting holes
Mounting Type
Side Mount
NEMA Rating
NEMA 3R
NEMA Rating
3R
Output Voltage
120/240
Phase
1
Series
QB
Series
QB Single Phase Transformer
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
3 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)
55.000 L
Package Weight (Metric)
24.948 kg
A - 15.0 kV bushing

015J0400AN

A - 15.0 kV bushing
O Plus C - 34.5 kV bushing

034Z3000AW

O Plus C - 34.5 kV bushing

Frequently Asked Questions

What type of transformer is the 9T51B0073?

The ABB 9T51B0073 is a single-phase transformer with an encapsulated core and coils in a NEMA 3R non-ventilated weatherproof enclosure.

What is the enclosure type and rating for this transformer?

The transformer features a NEMA 3R non-ventilated weatherproof enclosure.

What materials are the coils made of?

The coils are made of copper (CU).

What is the operating temperature range for this transformer?

The operating temperature range is -20 to 40 degrees Celsius.

What is the temperature class of the transformer?

The temperature class is 180 degrees Celsius.

What is the ambient temperature rating?

The ambient temperature rating is 40 degrees Celsius.

What is the insulation system class?

The insulation system class is 180 degrees Celsius.

What is the frequency rating for this transformer?

The frequency rating is 60 Hz.

Does this transformer meet UL standards?

Yes, this transformer meets UL standards.

Does this transformer meet cUL standards?

Yes, this transformer meets cUL standards.

Frequently Asked Questions about ABB - Electrification

What industries and applications are Jokab Safety products used for?

Jokab Safety products are specifically designed for machine safety applications across multiple critical industrial sectors, including Food and Beverage, Packaging, and Material Handling industries. Their safety solutions cover a wide range of machine safeguarding needs, such as safety light guards, safety controllers, safety relays, safety edges, safety mats, and two-hand control devices that protect personnel and equipment in complex industrial automation environments.

What technical support does Jokab Safety offer?

Jokab Safety offers comprehensive technical support through multiple channels, including a dedicated technical support phone line at (888) 385-1221 (Option 1) and email support at [email protected]. For advanced technical assistance, customers can contact their specialized Jokab Tech Support at (519) 982-0976 or email [email protected]. Additionally, they provide product specialist support through Jeff Leslie, who can be reached at (519) 982-0976, offering in-depth application and technical guidance.

What are the main product lines offered by Jokab Safety?

Jokab Safety offers a comprehensive range of machine safety products including safety light guards (Orion), safety controllers (Pluto), safety relays (Sentry), safety edges, safety contact mats, safety locks (Gkey), and safety sensors with OSSD and DYNlink interfaces. Their product lines are specifically designed for industrial applications in food and beverage, packaging, and material handling industries, providing robust safety solutions for machine guarding and personnel protection.

What are the key features of Jokab Safety products?

Jokab Safety products offer comprehensive industrial safety solutions with key features including: highest safety certification levels (up to PL e/Cat 4), extensive fault detection, multiple safety device types (optical safety devices, pressure sensitive devices, sensors, switches, locks, emergency stops), and innovative DYNlink technology that reduces cable requirements and simplifies installation. Their products are certified, verified, and compatible with major industrial automation systems like B&R, featuring easy M12 connector connections and a wide range of adapters to streamline safety implementation.

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.