ABB - Electrification Signature Partner Distributor
ABB - Electrification 9T51B0502 - 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

9T51B0502

UPC: 783173011218


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Specification Sheet

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Overview

ABB’s QB single-phase transformer (SKU 9T51B0502) is a general-purpose encapsulated unit designed for reliable voltage transformation in exposed or outdoor environments. The transformer features a fully encapsulated core and coils, providing superior protection against moisture, dust, and mechanical stress. Housed in a NEMA 3R non-ventilated, weatherproof enclosure, it resists falling rain, sleet, and wind-blown debris, making it ideal for harsh industrial, commercial, or utility applications. The QB series transformer includes knockouts on the back and bottom for flexible conduit entry, allowing for easy installation in tight spaces or when routing cables from multiple directions. Side-mounted holes simplify wall or surface mounting, while the internal wiring compartment includes a ground stud for secure, code-compliant electrical connections. This design ensures compliance with NEC and UL standards for outdoor electrical equipment. Manufactured in the USA by ABB - Electrification, the QB transformer is part of the encapsulated type QB series, known for its durability and low maintenance requirements. Typical applications include HVAC systems, lighting circuits, control power distribution, and general power transformation where environmental protection is critical. The NEMA 3R enclosure rating ensures reliable operation in wet or outdoor conditions, reducing the risk of corrosion or electrical faults. With a compact, non-ventilated design, the QB transformer operates efficiently without the need for active cooling, minimizing energy loss and extending service life. Its encapsulated construction eliminates the risk of internal condensation or contamination, ensuring consistent performance in variable climates. The QB series is a dependable choice for facilities requiring a robust, low-maintenance transformer for single-phase power distribution.
  • Encapsulated core and coils for superior environmental protection
  • NEMA 3R non-ventilated weatherproof enclosure resists rain, sleet, and debris
  • Knockouts on back and bottom for flexible conduit entry
  • Side mounting holes for easy installation and secure attachment
  • Wiring compartment includes ground stud for safe electrical connections

Specifications

Enclosure
NEMA 3R
Frequency Rating
50 HZ
Frequency Rating, Maximum
50 Hz
Frequency Rating, Minimum
50 Hz
Height
6.38 in
Input Voltage
240x480
Insulation
CLASSA
Material
Encapsulated
Mounting Type
Side mounting holes
NEMA Rating
NEMA 3R
Output Voltage
120/240
Phase
1
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
0.05 KVA
Width
5.12 IN
Package Dimensions (L x W x H)
3.25 IN x 5.12 IN x 6.38 IN
Package Dimensions (L x W x H)
8.255 cm x 13.0048 cm x 16.2052 cm
Package Weight (Imperial)
6.000 L
Package Weight (Metric)
2.722 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 is the catalog number for this ABB transformer?

The catalog number for this ABB single-phase transformer is 9T51B0502.

What is the primary voltage for this transformer?

The primary voltage for this transformer is 2400V.

What is the secondary voltage of this transformer?

The secondary voltage of this transformer is 240V.

What is the KVA rating of this transformer?

This transformer has a KVA rating of 5 KVA.

What is the enclosure type for this transformer?

The transformer is housed in a NEMA 3R non-ventilated, weatherproof enclosure.

What material are the coils made of?

The coils are made of copper (CU).

What is the frequency rating of this transformer?

The transformer operates at a frequency of 60 Hz.

Where are the knockouts located on the enclosure?

Knockouts are provided on the back and bottom of the enclosure.

How is mounting facilitated for this transformer?

Mounting holes are located on the side of the enclosure for easy access.

What type of core and coils does this transformer use?

This ABB transformer features an encapsulated core and coils.

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.