499247 AJR OIPM

499247

AJR Jet Fan | 11

8 Electrical connection

8.1 Safety information

• Observe the 5 rules of electrical safety, see 2.3 Five rules of electrical safety

• Prevent the ingress of water into the connection box.

• The electrical connection must be carried out by qualified persons, see Table 1: Qualifications

• Wear protective equipment during all work in the vicinity of the fan, see 2.2 Personal protective equipment

8.2 Preconditions

• Observe and respect local conditions, regulations, and laws.

• Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.

• Safety elements may not be dismantled, circumvented or deactivated.

• Install a circuit breaker in the permanent electrical installation with the appropriate contact opening

8.3 Protecting the motor

• Motor protection must be installed by the customer

• Lead-out temperature monitors must be integrated in the control circuit in such a way that, if a fault occurs, the motor cannot switch

on again automatically after it has cooled down.

• Motor lines and temperature monitor lines should be laid separately on principle.

• Without thermal protection: Use a motor protection switch.

8.4 Field Connections

• Check that the data on the nameplate matches the connection data.

• Complete the electrical connection according to the connection diagram.

• Lay the connection cables in the terminal box in such a way that allows the cover of the terminal box to be closed without resistance.

• Connect the cable end in a dry environment.

8.4.1 Connection Diagram

All connections shall be made according to the follwing diagram:.

Line voltage (L1, L2, L3, ):

• Field power connections are to be made in the electrical box

• The terminal box is provided with a labelled grounding connection.

• The protective grounding must have a cross-section equal to or greater than that of the phase conductor.

Warning

Danger from electrical voltage.

Important

Damage to motor due to overcurrent, overload or short circuit.

Note:

The minimum interval between consecutive starts is 5 minutes.