SBK Series Three Phase Dry Type Isolation Transformer

Product Overview

The SBK Series Three-Phase Dry-Type Isolation Transformer is designed for industrial power distribution systems that require voltage conversion and electrical isolation. It provides reliable safety protection, reduces electrical noise, and ensures stable operation of sensitive equipment.

The open-frame (no enclosure) design offers excellent heat dissipation, easy installation, and convenient maintenance, making it suitable for industrial environments and OEM integration.

Key Features

• High-quality copper winding for low loss and long service life

• Full electrical isolation between primary and secondary windings

• Effective suppression of harmonics and electromagnetic interference (EMI)

• High efficiency up to 95% with low temperature rise

• Customizable input/output voltages for global power systems

• Class H insulation system with high thermal resistance and durability

• High-grade silicon steel core for low noise and strong overload capacity

• Open-frame design for improved ventilation and easy wiring

Technical Specifications

• Product Type: SBK Series Dry Type Isolation Transformer

• Power Range: 1 kVA – 800 kVA (up to 2000 kVA custom)

• Phase: Three Phase

• Frequency: 50Hz / 60Hz

• Input/Output Voltage: Customizable

• Cooling Method: Natural Air Cooling

• Insulation Class: Class H

• Protection Class: IP00 (open type)

• Efficiency: ≥ 95%

• Voltage Regulation: ≤ ±1%

• Dielectric Strength: 6 kV (1 minute, no breakdown)

• Vector Group: Dyn11 / Yyn0 optional

• Standards: IEC / GB / JB/T8750

Capacity Range

• Small: ≤ 50 kVA

• Medium: 60 – 250 kVA

• Large: 300 – 800 kVA

• Extra Large: 1000 kVA – 2000 kVA (custom)

Applications

• CNC machines and automation systems

• Industrial production lines

• Power distribution systems

• Medical and laboratory equipment

• Mining and heavy machinery

• Overseas industrial engineering projects

Optional Accessories

• Temperature controller

• Voltmeter / Ammeter display

• Protection enclosure (IP20/IP23 optional)

• Movable base or lifting hooks

Ordering Information

Custom voltage, capacity, and connection configurations are available upon request.
Factory test reports and inspection documents can be provided for export shipments.