TECDrive20-EU Series Inverter Optional peripheral accessories
-153-
Recommended
cable size (mm
2
)
Size of connectable cable
(mm
2
)
Note:
Cables of the sizes recommended for the main circuit can be used in scenarios where the
ambient temperature is lower than 40°C, the wiring distance is shorter than 100 m, and the
current is the rated current.
Terminals P1, (+), PB and (-) are used to connect to the DC reactor options and parts.
C.4 Breaker and electromagnetic contactor
You need to add a fuse to prevent overload.
The circuit breaker is mainly used to prevent electric shock accidents and short circuits to the
ground that may cause leakage current fire. The electromagnetic contactor is mainly used to
control the main circuit power on and off, which can effectively cut off the input power of the
VFD in case of system failure to ensure safety.
According to the working principle and structure of breakers, if the
manufacturer's regulation is not followed, hot ionized gases may escape
from the breaker enclosure when a short circuit occurs. To ensure safe
use, exercise extra caution when installing and placing the breaker. Follow
the manufacturer's instructions.
Breaker rated
current (A)
Contactor rated
current (A)