en
8.4
Terminals
SSM
Fig. 26: Control terminals
118
Installation and operating instructions • Wilo-CronoLine-IL-E, Wilo-CronoTwin-DL-E, Wilo-CronoBloc-BL-E • Ed.01/2024-02
In order to ensure drip protection and strain relief on the cable connections, only cables
with a suitable outer diameter may be used (for the required cross-section, please see the
table "Cable cross-sections").
Secure cable glands tightly.
Ensure that no drips can run into the electronic module:
•
Bend the cables into a drain loop near the threaded cable gland
•
Unused cable glands should be sealed with the sealing washers provided and screwed
tight.
The mains cable should be laid in such a way that it can under no circumstances come into
contact with the pipe and/or the pump and motor housing. When pumps are used with fluid
temperatures above 90°C, a mains cable with suitable thermal resistance must be used.
Note additional earthing!
Tightening torques for union nuts of the threaded cable glands
Thread
M12x1.5
M16x1.5
M20x1.5
M25x1.5
M40x1.5
Table 11: Tightening torques for threaded cable glands
Control terminals
Please also see the following table "Terminal assignment".
Power terminals (mains connection terminals)
1.5 ... 4 kW:
Fig. 27: Power terminals
SBM
Please also see the following table "Terminal assignment".
Additional earthing
Tightening torque
[Nm] ± 10 %
3.0
6.0
8.0
11.0
16.0
5.5 ... 7.5 kW:
DANGER
Risk of fatal injury due to electrical current!
As motors from 11 kW generate more leakage current, improper electrical
connections can lead to fatal electric shock!
• Motors from 11 kW must be additionally connected to a reinforced
earth connection.
Installation information
1x threaded cable gland M12
reserved for connecting
cable for an optional differ-
ential pressure sensor
11 ... 22 kW: