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

Rural electrification, residential overhead networks, PLN last-mile distribution

10 – 100 kVA

Primary voltageUp to 20 kV

Secondary voltage230 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

160 – 2000 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.

A clear, straightforward process