Siemens SIMATIC HMI - Securing the Cables

Mounting and connecting the device
3.3 Connecting the device
Comfort Panels
Operating Instructions, 08/2018, A5E36770603-AC
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Installing a strain relief
With the 4" and 7" models, protect the cables with a separate strain relief. Install the strain
relief on the HMI device.
The following figure shows the fixing elements of the strain relief for the 4" model:
①
Bore hole for Torx screw
The strain relief is fastened with the Torx screw of the connection for equipotential bonding.
Before you install the strain relief, remove the Torx screw.
②
Safety latch
Proceed as follows:
1. Position the strain relief flush with the HMI device.
2. Push the strain relief to the right.
3. Secure the strain relief with the Torx screw.