ABB - Electrification Signature Partner Distributor
ABB - Electrification 9T51B0142 - ABB's Buck-boost transformers are small, single phase, dry type distribution transformers designed and shipped as insulating/isolating transformers. They have a dual voltage primary and a dual voltage secondary. These transformers can be connected for a wide range of voltage combinations. The most common use is to buck (lower) or boost (raise) the supply voltage a small amount, usually 5 to 27%. Buck boost transformers comply with NEC Article 210-9, Exception 1, when field connected as an autotransformer.
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ABB - Electrification

9T51B0142

UPC: 783173009079


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Specification Sheet

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Overview

The ABB 9T51B0142 is a compact, single-phase, dry-type buck-boost transformer, manufactured in the US. Designed and shipped as an insulating/isolating transformer, it features a dual voltage primary and a dual voltage secondary, allowing for a broad spectrum of voltage configurations. Its primary function is to precisely adjust supply voltage, either bucking (lowering) or boosting (raising) it by a typical range of 5% to 27%. This capability is crucial for applications requiring fine-tuned voltage regulation to protect sensitive equipment or optimize performance. When configured in the field as an autotransformer, the 9T51B0142 adheres to NEC Article 210-9, Exception 1, ensuring safe and compliant installations in electrical distribution systems. The dry-type construction enhances safety and minimizes maintenance requirements, making it a dependable choice for various industrial and commercial settings. This transformer is built to ABB's high-quality standards, reflecting a commitment to reliability and performance. It offers a practical solution for optimizing voltage levels, thereby extending equipment lifespan and improving operational efficiency. Specifications include UL and CSA certifications, an insulation system of 105°C, and a temperature rise of 55°C. It is equipped with primary fuse holders (2 fuses) and a secondary fuse clip (1 fuse).
  • Single-phase, dry-type buck-boost transformer
  • Dual voltage primary and secondary for flexible configurations
  • Adjusts voltage by 5-27% (buck or boost)
  • NEC Article 210-9, Exception 1 compliant when field-connected as autotransformer
  • UL and CSA certified with 105°C insulation system and 55°C temp rise

Specifications

Enclosure
NEMA 3R
Frequency Rating
60 HZ
Frequency Rating, Maximum
60 Hz
Frequency Rating, Minimum
60 Hz
Height
11.12 in
Input Voltage
240 VAC
Insulation
IS-12
Output Voltage
120
Phase
1
Special Features
ABB's Buck-boost transformers are small, single phase, dry type distribution transformers designed and shipped as insulating/isolating transformers. They have a dual voltage primary and a dual voltage secondary. These transformers can be connected for a wide range of voltage combinations. The most common use is to buck (lower) or boost (raise) the supply voltage a small amount, usually 5 to 27%. Buck boost transformers comply with NEC Article 210-9, Exception 1, when field connected as an autotransformer.
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
5 KVA
Width
9.38 in
Package Dimensions (L x W x H)
11.25 IN x 10.5 IN x 9 IN
Package Dimensions (L x W x H)
28.575 cm x 26.67 cm x 22.86 cm
Package Weight (Imperial)
60.000 L
Package Weight (Metric)
27.216 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 typical voltage adjustment range for this transformer?

The most common use is to buck (lower) or boost (raise) the supply voltage a small amount, usually 5 to 27%.

Does this transformer comply with NEC Article 210-9?

Yes, the ABB 9T51B0142 complies with NEC Article 210-9, Exception 1, when field-connected as an autotransformer.

What type of construction does this ABB transformer have?

This is a dry-type distribution transformer, designed for increased safety and reduced maintenance.

What certifications does the 9T51B0142 transformer hold?

The transformer holds UL and CSA certifications.

What is the temperature rise rating for this transformer?

The temperature rise is rated at 55°C.

What is the insulation system class for this transformer?

The insulation system class is 105.

Does this transformer include fuse protection?

Yes, it features primary fuse holders with 2 fuses and a secondary fuse clip with 1 fuse.

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