FIRMAN,a leading brand for Generator from China.FIRMAN has specialized in the generators and professional diesel generators supplying,commissioning from 1 to 4000KVA through more than 30 years of experience.FIRMAN shall solidify its leading role in generators through innovation of new products.

FIRMAN only use high quality industrial engines from Perkins,Cummins,MTU,Kubota, YANMAR,DOOSAN,MITSUBISHI,JOHN DEERE,YTO,YUCHAI,etc,as well as quality alternators from STAMFORD,MECC ALTE,marathon,LEROY SOMER,etc.

FIRMAN always use durable components for generators such as chassis and soundproof cover,all fittings.

FIRMAN always use high quality branded electrical and electronic components such as switches sockets,connectors,harnesses,circuit breakers,meters,sensors,relays,batteries,


(Change Over Switch System)

• IEC 60947-1 Low-voltage switchgear and controlgear
  Part one: General rules

• IEC 60947-3 Low-voltage switchgear and controlgear,
  switches, disconnectors, switch-disconnectors and
  fuse-combination units

• IEC 60947-6 Low-voltage switchgear and controlgear
  Multiple function switch Automatic transfer switching

SIWO series automatic and electric transfer switching equipment integrates switch and logic control. Thus, it’s not necessary to use controller. The ATSE truly achieves mechanical and electrical integration. It has the functions of voltage detection, frequency detection, communication interface, fire feedback, electrical and mechanical interlocking, etc. which can realize automatic, electric remote, emergency manual control.


We are a dedicated,highly skilled team of professional engineers who have been involved in maintenance service and installations for M&E systems in all types of building as well as improvement of sustained quality.Together with good maintenance engineering principles and excellent specialized tools,we are also expertised in electrical system thermal scan for detecting defects and unexpect hot spot.We provide 24 hours customers services