Manufacturing Quality Electrical Transformers in Asia since 1966.

Poly Electric Transformer


With over 50 years of experience in Asia, we help SMEs, multinational corporations 
and even government institutions to create reliable and innovative electrical solutions. All our power transformers can be custom-designed by our engineers to fit your business needs. They are also manufactured with superior quality material to perform efficiently and safely, easy to install and maintain, and built to last.

Poly Transformer Factory

About Us

With humble beginnings, Poly was founded in Singapore in 1966 and has evolved from a one-man shop to a successful business with operations in China serving reputable clients around the world.

Poly Isolation Transformer

Quality Assurance

We believe in good design and use only insulation systems approved by Underwriters Laboratory Inc. USA (UL), superior quality material and last but not least, follow stringent testing standards.

Man with Transformer Iron Core at Poly

Products & Services

We have an extensive product portfolio of dry type low voltage transformers, specializing in isolation transformers. We also offer standard and 3rd-party testing services to cater to requirements of various industries.

Our Clients Include

ABB logo
Schneider Electric logo
Socomec logo
Bank of China logo
Mizuho Bank logo
Singtel logo
Keppel Corporation logo
SMRT logo
Singapore Police Force logo
Marina Bay Sands logo
MGM Macau logo
SMBE Fuji Electric logo
Micron Technology logo
Global Foundries logo
Qualcomm logo
SSMC logo

Like To Know More?

Our experienced consultants are more than happy to help you with any questions. Please send us a message and we will get back to you as soon as we can within 24 hours.


Head Office & Manufacturing Plant

​Poly Electronic Service Co. Pte Ltd
Blk 26 Kallang Place #01-14/15

Singapore 339157.

Tel: +65 6298 8088 Fax: +65 6292 0888


GST & Business Registration No: 200009271-N
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Manufacturing Plant

Poly (Changshu) Special Transformer Co. Pte Ltd
江苏省常熟市虞山林场三峰工业园3号厂房, 邮编215550.
Tel: +86-512-5240 2798
Fax: +86-512-5240 2948