Settings Of Fan Motor Circuit Breaker; Settings For Motor Overload Relay - Atlas Copco ga55+ Instruction Book

Recommended cable size
Frequenc y Hz V oltage (V )
50
Frequenc y Hz
50
F requenc y H z
50
Remarks :
(1): current in the supply lines at maximum load
(2): recommended wire section under standard conditions
(3): recommended wire section under worst case conditions
(4): fuse value between () valid in case of 6 fuses for parallel supply cables
Fuse specifications IEC: gL/gG

11.3 Settings of fan motor circuit breaker

Circuit breaker
Frequency (Hz)
IEC
50

11.4 Settings for motor overload relay

Overload relay and fuses
Frequency (Hz)
IEC
50
134
GA 55+
W orkpla ce
Cable s iz e
415 4 x 70
GA 75+
W orkpla ce
V oltage(V ) Cable s iz e
415 7 x 35
G A 90
W o rkp la ce
V oltage(V ) C able s iz e
415 7x 35
Voltage (V)
Star-delta
415
GA55
Overload relay
Voltage (V)
F21 (A)
Star-delta
415
GA 55+
W orkpla ce Full-
Fe a ture
Cable s iz e
4 x 70
GA 75+ W orkpla ce
Full-Fe a ture
Cable s iz e
7 x 35
G A 90 W o rkp la ce
F u ll- F e a tu re
C able s iz e
7x 50
+
GA 55 and GA 75
Fan motor circuit
breaker Q15 (A)
5.0
+
GA75
Overload relay
F21 (A)
71 97
Instruction book
+
GA90
Fan motor circuit
breaker Q15 (A)
7.7
+
GA90
Overload relay
F21 (A)
114
9096 3313 00