The MONTANA transformer range

Full specifications and applications

MONTANA transformers are manufactured to IEC 60076 and SPLN D3.002-1:2025, in both oil-immersed and dry-type construction. Every unit undergoes multi-stage quality control and complete testing before dispatch, and custom specifications are available on request.

CSP Pole-Mounted Transformer

Completely self-protected single-phase units with built-in fuse and arrester, mounted directly on the pole.

25 – 50 kVA

Primary voltageUp to 20 kV

Secondary voltageUp to 400 V

PhaseSingle-phase

IEC 60076ANSI/NEMA C57.12

Distribution Transformer

PLN networks, overhead distribution lines, commercial and industrial estates

25 – 2500 kVA

Primary voltageUp to 20 kV

Secondary voltageUp to 400 V

PhaseThree-phase

IEC 60076SPLN D3.002-1:2025ANSI/NEMA C57.12

Dry-Type Transformer

High-rise buildings, hospitals, shopping malls, indoor substations, and fire-sensitive facilities

630 – 5000 kVA

Primary voltageUp to 20 kV

Secondary voltageUp to 400 V

PhaseThree-phase

IEC 60076-11ANSI/NEMA C57.12.01

Medium Power Transformer

Manufacturing plants, data centers, and large infrastructure projects

2500 – 5000 kVA

Primary voltageUp to 20 kV

Secondary voltageUp to 400 V

PhaseThree-phase

IEC 60076ANSI/NEMA C57.12

Mobile Substation (UGB)

Rapid grid deployment, events, emergency supply, and temporary network reinforcement

200 – 1000 kVA

Primary voltageUp to 20 kV

Secondary voltageUp to 400 V

PhaseThree-phase

IEC 60076

Keeping transformers in service

Beyond supplying new units, we commission, maintain, and refurbish distribution transformers — including those already in the field.

Four steps, from inquiry to delivery