Transformers - Low Voltage Dry Type

Low voltage dry-type transformers are electrical distribution devices that safely and efficiently convert voltage levels for equipment, machinery, and facility power systems in commercial, industrial, and infrastructure applications. They help electrical engineers, panel builders, contractors, and facility operators deliver reliable power distribution while supporting safety, energy efficiency, and operational continuity. Commonly used in manufacturing facilities, data centers, commercial buildings, healthcare environments, water and wastewater systems, and renewable energy applications, low voltage dry-type transformers provide dependable voltage transformation across a wide range of installations. Key capabilities include energy-efficient operation, low-noise performance, thermal monitoring options, compact designs, and compliance with industry standards for power distribution and electrical safety. Electrical engineers, OEMs, system integrators, facility engineers and plant managers rely on low voltage dry-type transformers to improve power quality, reduce maintenance requirements, and support reliable operation of critical electrical systems. ABB's low voltage dry-type transformer portfolio combines proven power distribution expertise, innovative design, and global application experience to help customers build safe, efficient, and resilient electrical infrastructure.

Low Voltage Dry Type Vented Transformers

ABB LV Transformer - General Purpose Single Phase

ReliaGear XFMR General Purpose 1 Phase

For applications requiring a 3-wire secondary voltage for 120/240 V systems.

ReliaGear XFMR General Purpose 3 Phase

Reliable, energy-efficient design for general purpose lighting and electrical applications.

ReliaGear XFMR Solar Duty

For use in renewable energy applications and rated for bidirectional operation.

ReliaGear XFMR with Factory-installed Infrared Viewing Window

IR viewing windows allow for safe thermographic testing of energized units.

ReliaGear XFMR K-Factor

ABB’s type QL K-Factor transformers are designed to withstand the additional heating that accompanies the presence of harmonics in electrical systems.

ReliaGear XFMR Low Noise

Our low noise transformers operate at reduced noise levels. The vibrations within the magnetic steel core have been greatly reduced, thus lowering the humming of the…

Guard I Noise Isolation - ABB LV Transformer

ReliaGear XFMR Guard I Noise Isolation

Guard I™ noise isolation transformers provide common mode noise attenuation and transverse mode noise attenuation.

ABB LV Transformer - Guard II and Guard III

ReliaGear XFMR Guard II Electrostatic Shielded

Guard II™ transformers incorporate the same electrostatic shield as the Guard I plus additional noise and surge suppression components

ReliaGear XFMR Guard III Harmonic Mitigating

Guard III™ Harmonic Mitigating Transformers help eliminate harmonics, improve power quality, and help save energy by reducing the energy (heating) losses. They maintain…

ABB Three Phase Servicenter Integral Transformer and Distribution Panel

ReliaGear XFMR 3 Phase Servicenter Integrated Transformer and Load Center

Three phase Servicenter™: integrated transformer and load center

ReliaGear XFMR Drive Isolation

Drive Isolation Transformer (DIT) is designed to specifically handle the mechanical stresses, voltage distortions, and harmonics associated with SCR applications.

Low Voltage Dry Type Non-Ventilated Transformers

ABB Totally Enclosed Non-Ventilated Transformers

ReliaGear XFMR Totally Enclosed, Non-Ventilated (TENV)

TENV transformers are recommended where dust, dirt, or lint may be present or where transformers are subject to sprays or controlled wash-down conditions.

Low Voltage Dry Type, Encapsulated, Enclosed Transformers

ABB LV Dry Type Encapsulated Enclosed Transformers

Single-Phase: .050kVA-3kVA

QB transformers feature encapsulated core and coils in a NEMA 3R nonventilated weatherproof enclosure.

Type QB – Buck Boost

Single Phase or combine to create three-phase autotransformers, ranging from 0.05 kVA to 3 kVA.

Type QMS - Single Phase 5 kVA - 25kVA

Encapsulated core & coil fully encapsulated isolation transformer in a painted NEMA 3R non-ventilated enclosure with IP 20 wiring compartment.

Type QMS - Single Phase Integrated Transformer and Load Center

Servicenter Single Phase Integrated Transformer and Load Center

Transformer load center combo unit is a single phase integrated main breaker load center with encapsulated dry type transformer ranging from 5 kVA to 25 kVA.