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Special/Isolation/Control Transformers
21 Series · 2112 Models
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Special/Isolation/Control Transformers Overview
Isolation and control transformers provide galvanic separation for industrial automation and precision equipment. QDTB isolation transformers protect sensitive equipment from power disturbances. Control transformers deliver stable low-voltage power for PLCs and instrumentation. 25 VA to 5,000 VA, per IEC 61558.
Available Series
BK Series
The BK series represents single-phase control transformers designed for industrial control circuits, providing safe isolation and voltage transformation.
Other Series
A comprehensive collection of specialty isolation and control transformers covering diverse voltage conversion needs. Includes three-phase isolation transformers, control transformers with non-standard ratios, and equipment for 50Hz/60Hz power systems across various industrial applications.
Triple-Freq Series
The TF series triple frequency transformers generate stable three-times frequency output for insulation testing of electrical equipment, including transformer cores and insulating materials. Dry-type design with Class F insulation ensures safe, repeatable test performance.
HF-High-Power Series
The HFPT series high frequency high power transformers are engineered for inverter and switching power applications, delivering efficient power conversion at high frequencies. Compact dry-type construction with Class F insulation suits modern power electronics systems.
BKC Series
The BKC series features enclosed single-phase control transformers, offering enhanced protection for control circuit applications.
VFS Series
The VFS series variable frequency supply transformers provide reliable voltage transformation for variable frequency power sources, supporting adjustable-speed drive and test systems. Dry-type construction with Class F insulation ensures stable operation across the frequency range.
EM-Controller Series
The EMC series electromagnetic filters suppress conducted electromagnetic interference in control and power circuits, ensuring compliance with EMC standards. Compact dry-type construction with Class F insulation provides effective filtering for sensitive equipment.
JMB Series
The JMB series is designed for lighting applications, providing safe voltage transformation for illumination systems.
1P-to-3P Series
The 1P-to-3P series phase-converting transformers enable three-phase equipment to operate from a single-phase supply, providing balanced three-phase output for motors and machinery. Dry-type construction with Class F insulation delivers dependable conversion.
Ozone-MF Series
The OZMF series ozone isolation transformers provide high-voltage isolation for ozone generation systems, delivering reliable stepped-up output for dielectric barrier discharge. Dry-type construction with Class F insulation ensures stable ozone generator performance.
High-Current Series
The HCG series high current rectifier transformers deliver the low-voltage, high-current output required for rectifier and electroplating applications. Dry-type construction with Class F insulation provides reliable, maintenance-friendly power conversion.
3P-to-1P Series
The 3P-to-1P series phase-converting transformers supply balanced single-phase power from a three-phase source, ideal for feeding single-phase loads from three-phase networks. Dry-type construction with Class F insulation ensures dependable conversion.
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Aluminum winding — no copper linkage
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Application Scenarios
Industrial Automation
Power isolation for PLC panels, CNC machines, and robotics.
Medical Equipment
Medical-grade isolation for surgical and laboratory instruments.
Precision Manufacturing
Power conditioning for semiconductor and metrology equipment.
Marine & Shipboard
Galvanic isolation between shore power and onboard networks.
Telecommunications
Control power for switching equipment and server racks.
Building Automation
Isolation for HVAC control and fire alarm panels.
Technical Advantages
Galvanic Isolation
Double-insulated winding with electrostatic shield.
Voltage Stability
Precision ratios for accurate secondary voltage.
Compact Design
Maximum power density saving panel space.
Global Standards
IEC 61558, UL 506, GB 19212 compliant.
FAQ - Special/Isolation/Control Transformers
What is the purpose of an isolation transformer?
How do I select the VA rating?
Can they handle harmonic loads?
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