We recommend adapting the switchgear sizing to the max. current (I
max
) and to
select and set the overcurrent protection device in compliance with the indications
in the electrical data sheet.
Protection via thermal
motor protection
According to FM approvals, thermal switches for thermal motor protection must be
connected to external controls for explosion-proof actuators.
Safety standards
Safety measures and safety equipment must comply with the respectively valid
national on site specifications. All externally connected devices shall comply with
the relevant safety standards for the place of installation.
Connecting cables
●
We recommend using connecting cables and connecting terminals according
to rated current (I
N
) (Refer to motor name tag or electrical data sheet).
●
Use suitable (voltage-proof) cables. Specify cables for the highest occurring
rated voltage.
●
Use connecting cables with a minimum temperature range of 165 °F (+80 °C).
●
For connecting cables exposed to UV radiation (outdoor installation), use UV
resistant cables.
●
For the connection of position transmitters, screened cables must be used.
5.2.
Electrical connection of actuator
Figure 19: Connection arrangement at actuator
[1]
Motor connection/motor control
[2]
Cable entry for motor connection
[3]
Electrical connection for power connections (figure shows K version)
5.3.
Motor connection
5.3.1.
Motor cables: connect
Table 8:
Terminal cross sections and terminal tightening torques
Tightening torques
Terminal cross sections
Speed
Type
1.48 ft-lb [2.0 Nm]
0.5 – 16 mm
2
4.8 – 26
SAEx 25.1
SAREx 25.1
2.58 ft-lb [3.5 Nm]
2.5 – 35 mm
2
38 – 108
0.9 – 1.8 ft–lb [1.2 – 2.4 Nm]
4 – 16 mm
2
4.8 – 26
SAEx 30.1
SAREx 30.1
3.0 – 3.7 ft–lb [4.0 – 5.0 Nm]
10 – 35 mm
2
38 – 54
4.4 – 8.9 ft–lb [6.0 – 12 Nm]
16 – 70 mm
2
75 – 105
0.9 – 1.8 ft–lb [1.2 – 2.4 Nm]
4 – 16 mm
2
4.8 – 6.7
SAEx 35.1
3.0 – 3.7 ft–lb [4.0 – 5.0 Nm]
10 – 35 mm
2
9.6 – 26
4.4 – 8.9 ft–lb [6.0 – 12 Nm]
16 – 70 mm
2
38 – 54
1.
Remove cable sheathing and insert the wires into the cable glands.
22
SAEx 25.1 – SAEx 35.1 / SAREx 25.1 – SAREx 30.1
Electrical connection
NORM (without controls)
