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Operating Instructions
BA 373-E66
Technical specifications subject to change
W. Bälz & Sohn GmbH & Co.
Koepffstrasse 5
74076 Heilbronn
Germany
Phone +49 (0)7131 15 00 0
Fax +49 (0)7131 15 00 21
www.baelz.de
Observe copyright protection DIN 34
4.5 Electrical connection
Risk of electric shock!
Make sure to use an appropriate power supply to ensure that no dangerous voltage will enter the device
during normal operation or in the event of a system failure or failure of system components.
Failure to heed this warning may result in death, serious injury or substantial material damage.
For short-circuit protection and disconnection of the actuator from the power supply, fuses and switch disconnec-
tors must be provided on site. The current values for the rating depend on the operating current of the motor (refer
to the identification label).
The electrical connection may only be made by trained, qualified personnel.
● Prior to connection, observe the basic information provided in this chapter.
● After connection, but before applying voltage, observe the information in Chapter Commissioning and Test
run.
● When making the electrical connection, be sure that the power supply is turned OFF! Ensure protection
against unintentional reconnection to power!
● For wiring and connection, observe the regulations for the erection of electric power installations and the
regulations of the local energy supplier!
● Check compliance of the line voltage and the line frequency with the specifications on the identification
label of the actuator and on the identification label of the actuator motor.
● Always select the line cross section so as to match the actuator's power consumption and the required line
length. Minimum cross section of the line for this type of linear actuator: 1 mm².
Under fault conditions: Dangerous voltage if protective earth conductor is NOT connected! Risk of electric shock.
→ Do not put the device into operation if the protective earth conductor is not connected.
Short-circuit due to jammed lines! Risk of electric shock and malfunction.
4.6 Making the electrical connection
Risk of electric shock!
Dangerous voltage! Risk of electric shock.
→ Disconnect the device from power before removing the cover.
Always use the circuit diagram which is attached or adhered to the inside of the cover.
Replace the dummy plugs with cable glands
1. Remove the sheath from the cables.
2. Strip the wires.
3. For flexible wires: Use wire end ferrules as specified in DIN 46228.
4. Connect the wires as specified in the customized circuit diagram.
The protection level IP ... shown on the identification label is only ensured if suitable cable glands are used.
Danger
Danger
