Salicru CV30, User Manual, Page: 135 / 140

Appendix C Peripheral Options and Parts 135 - 140
Note:
1. It is appropriate to use the recommended cable size under 40 ℃ and rated current. The wiring distance
between the inverter and the motor should be no more than 50 m without using any filter and between
50
~
100m using chokes. It is possible to have longer distances if a sine wave filter is installed.
2. Terminals P1, (+), PB and (-) can be used to connect an optional DC reactor.
C.4 Circuit breaker and electromagnetic contactor
It is necessary to use a circuit breaker (MCCB) to protect the power supply and the cable system. The rated
current of the circuit breaker should be 1.5-2 times of the rated input current of the inverter.
 Due to the inherent operating principle and construction of circuit breakers, independent
of the manufacturer, hot ionized gases may escape from the breaker enclosure in case
of a short-circuit. To ensure safe use, special attention must be paid to the installation
and placement of the breakers. Follow the manufacturer’s instructions.
It is necessary to install the electromagnetic contactor in the input side to control the switching on and off
safety of the main circuit. It can switch off the input power supply when system faults.
Model Breaker (A)
The rated working current
of the contactor (A)
CV30-004-S2 10 9
CV30-008-S2 16 12
CV30-015-S2 25 25
CV30-022-S2 40 32
CV30-004-2 6 9
CV30-008-2 10 9
CV30-015-2F 16 12
CV30-022-2F 25 18
CV30-040-2F 32 25
CV30-055-2F 32 32
CV30-075-2F 63 50
CV30-008-4 6 9
CV30-015-4 10 9
CV30-022-4 10 9
CV30-040-4F 25 25
CV30-055-4F 32 25
CV30-075-4F 40 38
C.5 Input Reactors
Transient high current in the input power circuit may cause damage to the rectifying components. It is appropriate to use AC
reactor in the input side for the avoidance of high-voltage input of the power supply and improvement of the power factors.