Connecting The Protective Conductor - Siemens SIMATIC IPC PX-39A Operating Instructions Manual

Installing and connecting the device
3.3 Connecting the device
3.3.2

Connecting the protective conductor

The protective conductor connection is needed to protect the device. The protective
conductor discharges dangerous currents, triggering a surge protection switch. The
protective conductor also improves the discharge of interference generated by external
power cables, signal cables or cables for I/O devices to ground.
The connection for the protective conductor is labeled with the following symbol:
Requirement
• The device has been installed.
• 1 protective conductor, minimum cross section 2.5 mm
• 1 T20 screwdriver
• 1 x M4 cable lug
Procedure
1. Crimp the cable lug onto the protective conductor.
2. Screw the cable lug onto the protective
conductor connection as shown.
3. Wire the protective conductor to the protective conductor connection of the control cabi-
net in which the device is installed.
42
= AWG14
2
Operating Instructions, 08/2022, A5E51699601-AA
SIMATIC IPC PX-39A