Installation, wiring, commissioning, removal
3.3 Installing and connecting
CP 443-5 Extended
32 Equipment Manual, 01/2023, C79000-G8976-C162-10
Lack of equipotential bonding
If there is no equipotential bonding in hazardous areas, there is a risk of explosion due to
equalizing current or ignition sparks.
• Ensure that equipotential bonding is available for the device.
Unprotected cable ends
There is a risk of explosion due to unprotected cable ends in hazardous areas.
• Protect unused cable ends according to IEC/EN 60079-14.
Insufficient isolation of intrinsically safe and non-intrinsically safe circuits
Risk of explosion in hazardous areas
• When connecting intrinsically safe and non-intrinsically safe circuits, ensure that the
galvanic isolation is performed properly in compliance with local regulations (e.g. IEC
60079-14).
• Observe the device approvals applicable for your country.
Unauthorized repair of devices in explosion-proof design
Risk of explosion in hazardous areas
• Repair work may only be performed by personnel authorized by Siemens.
3.3 Installing and connecting
Improper mounting
Improper mounting may damage the device or impair its operation.
• Before mounting the device, always ensure that there is no visible damage to the device.
• Mount the device using suitable tools. Observe the information in the respective section
about mounting.
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