
All terminals in the terminal box are labelled and
are self-explanatory.
All cable bushings are equipped with blanks when
shipped. Remove these blanks as required.
Supply voltage: 100 ... 240 V AC at 47 ... 63 Hz
All terminals are designed for wires in the range of
12 ... 30 AWG
1.
Loosen the four housing screws at the corners of the terminal
box
2.
Lift off the cover of the terminal box
3.
Remove the blanks from the threaded connectors used
4.
Strip the insulation 6 mm from the ends of all cables.
5.
Guide the cables into the threaded connectors
6.
Connect the cables to the designated terminals
Make sure that the earthing cable is connected to a terminal
on the DULCO turb C labelled “G”.
7.
Equip all cables with strain relief.
8.
Tighten the clamping nuts of the threaded connectors so that
they are properly sealed
9.
Replace the terminal box cover on the terminal box
10. Manually tighten the housing screws
11. Once again check the seating of the seal and threaded con‐
nectors. The degree of protection stated on the nameplate
can only be achieved if installation has been done properly.
4.3.1 Terminal strip (P1) connectors:
DANGER!
Switch off the device and disconnect it from the
power supply before making or changing any con‐
nections. The terminal strip (P1) is located close to
the power connector.
The terminal strip for RS-485 (Modbus), 4 ... 20 mA and alarms
has spring-loaded connectors.
There are two rows of connectors positioned on top of each other
labelled on the circuit board. The alarm connectors are located in
the top row. The RS-485 and 4 ... 20 mA are located in the bottom
row.
These connectors are designed for a core diameter of 12 ... 28
AWG, either solid or multi-core.
To open the connector, insert a 3 mm (1/8 inch) slotted head
screwdriver into the slot directly above the electrical con‐
nector.
Open the terminal block connection by gently lifting the
screwdriver upwards. The connection is tightened by pulling
out the screwdriver.
Assembly and installation
21