Fuji Electric ALPHA5 Smart - 10.3 MCCB;ELCB Selection

CHAPTER 10 PERIPHERAL EQUIPMENT
MCCB/ELCB (Molded Case Circuit Breaker/Earth Leakage Breaker) 10-9
10
10.3 MCCB/ELCB (Molded Case Circuit Breaker/Earth
Leakage Breaker)
Install MCCB (molded case circuit breaker) or ELCB (earth leakage breaker) in the primary circuit
(power supply circuit) of the servo amplifier to protect the servo amplifier against losses caused by
the power switching current and short circuit current. Models for a single servo amplifier are
described here. Because the servo amplifier is provided with protective functions against output
circuits such as the overcurrent, protective devices such as the thermal relay are unnecessary.
Models of molded case circuit breaker and earth leakage breaker
 Single-phase 200 V
Rated rotation
speed [r/min]
Capacity [kW]
MCCB
ELCB
(Sensed current: 30 mA)
0.05
0.1
BW32AAG-2P/3 EW32AAG-2P/3
0.2
BW32AAG-2P/5 EW32AAG-2P/5
0.4
BW32AAG-2P/10 EW32AAG-2P/10
3000
0.75
BW32AAG-2P/15 EW32AAG-2P/15
0.5
BW32AAG-2P/10 EW32AAG-2P/10
2000
0.75
BW32AAG-2P/15 EW32AAG-2P/15
1500 0.5
BW32AAG-2P/10 EW32AAG-2P/10
Made by Fuji Electric FA Components & Systems