
1-7
Molded Case Circuit Breaker (MCCB) and Residual-
Current-Operated Protective Device (RCD)/Earth
Leakage Circuit Breaker (ELCB)
Power
supply
voltage
Nominal
applied
motor
(HP)
Inverter type CT/VT
mode
Rated current of
MCCB and
RCD/ELCB (A)
Three
-
phase
Single-
phase
w/ DCR w/o
DCR
460 V
125
50
EQ7-4125-C
VT
200
--
EQ7-4150-C
CT
150
CT/VT
250
60
EQ7-4200-C
CT
200
CT/VT
300
EQ7-4250-C
CT
250
75
CT/VT
350
EQ7-4300-C CT/VT
500
300
100
EQ7-4350-C CT/VT
350
EQ7-4450-C
CT
600
350
-
450
125
VT
400
EQ7-4500-C
CT
800
450
-
-
150
EQ7-4600-C
CT
Power
supply
voltage
Nominal
applied
motor
(HP)
Inverter type CT/VT
mode
Rated current of
MCCB and
RCD/ELCB (A)
Three-
phase
Single-
phase
w/ DCR w/o
DCR
460 V
500
150
EQ7-4500-C
VT
800
--
-
EQ7-4600-C
CT
-
150
EQ7-4700-C
CT
600
200
EQ7-4600-C
VT
1200
-
EQ7-4700-C
CT
-
200
EQ7-4800-C
CT
700
EQ7-4700-C
VT
-
EQ7-4800-C
CT
800
250
VT
EQ7-4900-C
CT
900
300
VT
1400
EQ7-41000-C
CT
1000
400
VT
1600
If no zero-phase current (earth leakage current) detective device such as a ground-fault relay is installed in the
upstream power supply line in order to avoid the entire power supply system's shutdown undesirable to factory
operation, install a residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB)
individually to inverters to break the individual inverter power supply lines only.
Otherwise, a fire could occur.
(6) Magnetic contactor (MC) in the inverter input (primary) circuit
Avoid frequent ON/OFF operation of the magnetic contactor (MC) in the input circuit; otherwise, the inverter failure
may result. If frequent start/stop of the motor is required, use
FWD
/
REV
terminal signals or the
/
keys on the
inverter's keypad.
The frequency of the MC's ON/OFF should not be more than once per 30 minutes. To assure 10-year or longer
service life of the inverter, it should not be more than once per hour.
Содержание EQ7 Series
Страница 1: ......
Страница 29: ...2 6 Unit inch mm Refer to Section 2 3 3 9 ...
Страница 94: ...4 25 Table B Motor Parameters Continued Three phase 460 V series EQ7 4_ _ _ C ...
Страница 152: ...4 83 Examples of Sequence Circuits 1 Standard sequence 2 Sequence with an emergency switching function ...