Atlas Copco GA 55+ User Manual

2.7 Electrical system
General
Also consult sections Electrical diagrams and Electrical connections.
Electrical components
The electrical system comprises following components:
Electric cubicle, typical example
Reference Designation
F1/2/3 Fuses
(F3 is only provided in case a phase sequence relay is provided)
F4/5/6 Fuses
F7/F8/F9 Fuses (only on Full-Feature)
F10/11/12 Fuses
F21 Overload relay, compressor motor
Q15 Circuit breaker, fan motor (on air-cooled compressors)
K5 Auxiliary relay
K11 Auxiliary contactor for dryer (only on Full-Feature)
K21 Line contactor
K22 Star contactor
K23 Delta contactor
Instruction book
18 API603130

Atlas Copco GA 55+ Specifications

General

Model	GA 55+
Category	Air Compressor
Power	55 kW
Working Pressure	7.5 - 13 bar
Height	1800 mm
Cooling Method	Air-cooled
Drive Type	Direct driven
Sound Level	70 dB(A)