ABB - Electrification Signature Partner Distributor
ABB - Electrification 9T51B0572 - 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

9T51B0572

UPC: 783173036938


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Specification Sheet

Contact for Pricing

Overview

ABB QB Single Phase Transformers (SKU 9T51B0572) deliver reliable single-phase power transformation with encapsulated core and coils in a NEMA 3R non-ventilated, weatherproof enclosure. This design ensures superior protection against environmental contaminants like moisture, dust, and falling rain, making these transformers ideal for outdoor or exposed installations in commercial buildings, industrial facilities, and utility substations. The transformer features knockouts on the back and bottom for flexible conduit entry, while side-mounted holes simplify installation and secure attachment. The integrated wiring compartment includes a ground stud for safe, compliant electrical connections. The NEMA 3R enclosure meets stringent protection standards, resisting falling rain and sleet while preventing moisture ingress and dust accumulation—extending service life with minimal maintenance. ABB’s encapsulated design eliminates the need for ventilation, reducing the risk of internal contamination and improving long-term reliability. These transformers are engineered for general-purpose single-phase applications, offering consistent power delivery in demanding environments. The encapsulated core and coils provide inherent insulation and thermal stability, ensuring stable performance under varying load conditions. Available in multiple NEMA enclosure variants (including NEMA 1 and 12/3R), the QB series accommodates pilot device knockout holes and space for control power transformers in select models. This flexibility allows integration into complex electrical systems, including those requiring auxiliary control power. The US-made construction adheres to ABB Electrification’s quality standards, ensuring compliance with industry requirements for durability and operational integrity. Key applications include lighting systems, HVAC controls, machine tools, and utility distribution where dependable single-phase power is critical. The QB series is a cost-effective solution for facilities prioritizing reliability, ease of installation, and long-term performance without frequent maintenance.
  • Encapsulated core and coils for superior environmental protection
  • NEMA 3R non-ventilated, weatherproof enclosure resists rain, sleet, and dust
  • Knockouts on back/bottom for flexible conduit entry; side mounting holes for secure installation
  • Integrated wiring compartment with ground stud for safe electrical connections
  • US-made, suitable for commercial, industrial, and utility applications

Specifications

Connection Type
Conduit Entry (Knockouts)
Connection Type
Screw Terminal (ground stud)
Enclosure
NEMA 3R
Frequency Rating
50 HZ
Frequency Rating, Maximum
50 Hz
Frequency Rating, Minimum
50 Hz
Height
11.12 in
Input Voltage
600 VAC
Insulation
IS-12
Material
Encapsulated Core & Coils
Material
Encapsulated Core and Coils
Mounting Type
Side mounting holes
Mounting Type
Side-mounted holes
NEMA Rating
NEMA 3R
Output Voltage
120/240
Phase
1
Poles
1-pole
Poles
Single Phase
Series
QB
Series
QB single phase transformers
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)
13 IN x 13 IN x 12 IN
Package Dimensions (L x W x H)
33.02 cm x 33.02 cm x 30.48 cm
Package Weight (Imperial)
50.000 L
Package Weight (Metric)
22.680 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 enclosure does the 9T51B0572 model feature?

The 9T51B0572 model features a NEMA 3R non-ventilated weatherproof enclosure, designed for outdoor or exposed locations.

What is the primary function of the encapsulated core and coils?

The encapsulated core and coils provide superior protection against moisture, dust, and corrosive elements, enhancing the transformer's durability and lifespan.

What NEMA enclosure types are available for ABB QB transformers?

ABB QB transformers are available in NEMA 12/3R and NEMA 1 enclosure types, offering protection suitable for various environmental conditions.

Does the ABB QB transformer enclosure have knockout holes?

Yes, pilot device knockout holes are provided on certain ABB QB transformer enclosure models, facilitating easier wiring and component integration.

Is there space for a control power transformer within the enclosure?

Some ABB QB transformer enclosure models, such as ENCX2W117C6 and ENCX1W114C2, offer space within the enclosure for a control power transformer.

How to Install the ABB QB Single Phase Transformer

Step-by-step guide for mounting and wiring the ABB QB single-phase transformer.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Pliers, Voltage tester

Supplies needed:

Mounting screws, Appropriate conduit fittings, Electrical tape, Wire connectors

  1. Select Mounting Location

    Choose a suitable location that is accessible for maintenance and meets environmental requirements for a NEMA 3R enclosure. Ensure the mounting surface is stable and can support the transformer's weight.

  2. Mount the Transformer

    Utilize the side mounting holes on the transformer enclosure. Securely fasten the transformer to the mounting surface using appropriate screws. Ensure the transformer is level.

  3. Prepare Conduit Entry

    Identify the appropriate knockout locations on the back or bottom of the enclosure for your conduit runs. Remove the necessary knockouts using a suitable tool.

  4. Install Conduit and Wiring

    Install conduit fittings into the removed knockouts. Run electrical conduit and pull the primary and secondary wiring into the transformer's wiring compartment. Ensure proper strain relief for the conduit.

  5. Connect Wiring

    Open the wiring compartment. Connect the primary and secondary wires to the appropriate terminals within the compartment. Ensure the ground wire is connected to the integrated ground stud. Double-check all connections for tightness and polarity.

  6. Close and Secure Enclosure

    Carefully close the wiring compartment and secure the enclosure cover. Ensure all seals are properly in place to maintain the NEMA 3R rating.

  7. Test Operation

    Before energizing the primary circuit, use a voltage tester to verify that there are no short circuits. Once confirmed, energize the primary circuit and verify the secondary voltage output according to the transformer's specifications.

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.