Vents KSD 250-4E, User Manual, Page: 13 / 24

13
CONNECTION
TO POWER
MAINS
The fan is rated for connection to single-phase 230 V/50 Hz AC mains.
The fan is rated for continuous operation always connected to power supply.
Depending on the fan model there are two wiring options:
- via the terminal box, Fig. 19-22, 24;
- via the power cable with a plug for R modification, Fig. 25.
In case of connection to power mains via the terminal box the wires must be connected
to the terminal block in compliance with the wiring diagram and terminal marking as shown
in Fig. 23.
For electric installations use insulated, durable copper electric leads (cables, conductors)
2 2
with the minimum cross section 0.75 mm and 1.0 mm for KSD 315 S -6E.
The above value is for reference.
While selecting the required cable cross section consider the cable type, its maximum heating
temperature, insulation, length and installation method. The fan requires safe grounding.
Connect the fan to 230 V / 50 Hz power mains through the external automatic circuit breaker
with the minimum contact gap 3 mm installed at the power input and integrated into the
house cabling. The circuit breaker installation place must ensure free access for emergency
shutdown of the fan.
The trip current of the circuit breaker must be in compliance with the fan current
consumption.
Recommended current consumption of the circuit breaker is stated in the Table 3.
Disconnect the fan from power mains prior to any operations. Connection of the fan
to power mains is allowed by a qualified electrician. The rated electrical parameters
of the fan are stated on the manufacturer's label. Any tampering with the internal
connections is prohibited and will void the warranty.
!
KSD
WARNING