Wiring; Safety Instructions And Guidelines - Siemens SIPLUS HCS Series Operating Instructions Manual

Wiring

6.1

Safety instructions and guidelines

Safety instruction
Hazardous voltages from the mains power input or heating element feeder cables
Will cause death, serious injury or damage to property
Dangerous voltages might be present on mains from the supply and to heating elements.
Before work starts on connecting the HCS4300 heating control system, the mains and
heating element lines must be disconnected and secured against being switched on again.
Electric shock hazard
Can cause death or serious injury
• Voltages of more than 60 V can occur in the control cabinet. Suitable safety precautions
• Before working on the heating control system or the connected components, ensure the
Electric shock hazard
Can cause death or serious injury
The mains supply to which the device is connected must have a circuit breaker or a fuse.
The circuit breaker or fuse must be easily accessible and clearly assigned to the device.
We recommend locating the circuit breaker or fuse near to the device. Take the maximum
current consumption of the heating control system into consideration when selecting the
circuit breaker or fuse.
The following apples to the UL version of the heating control system:
• The mains supply to which the device is connected must have a circuit breaker
• Observe the SCCR rating on the rating plate. Only use the device in circuits limited
• Only use 60/75°C copper cables for the cabling.
SIPLUS HCS4300 PROFINET/PROFIBUS DP
Operating Instructions, 10/2019, A5E35452705A/005
WARNING
WARNING
to prevent contact must therefore be taken before and during commissioning and
maintenance work.
system is disconnected.
WARNING
(according to UL489) or a fuse (UL-listed branch circuit fuse).
accordingly.
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