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Connecting up
6.1 Safety when connecting up
General notices
NOTICE
Suitable fusing for the power supply cables
The current on the terminal may not exceed 5 A. Use a fuse, that protects against currents > 5
A. The fuse must meet the following requirements:
• In areas where NEC or CEC applies:
• In other areas:
With 24 VDC devices you do not need to fuse the supply cable if you only use power sources
with a limited power source (LPS) or power sources according to NEC Class 2 for the power
supply of the devices.
Note
Close unused sockets
Close all unused M12 sockets with protective caps (tightening torque at least 0.4 Nm) to achieve
the specified type of protection.
Safety notices on use in hazardous areas
General safety notices relating to protection against explosion
EXPLOSION HAZARD
Do not connect or disconnect cables to or from the device when a flammable or combustible
atmosphere is present.
Safety notices when using the device according to Hazardous Locations (HazLoc)
If you use the device under HazLoc conditions you must also keep to the following safety notices
in addition to the general safety notices for protection against explosion:
54
– Suitable for DC (min. 60 V / max. 5 A)
– Breaking current at least 10 kA
– Approval according to ANSI/UL 248-1 or CSA C22.2 No. 248.1
– Classes R, J, L, T or CC
– Suitable for the protection of DC power supply circuits
– Suitable for DC (min. 60 V / max. 5 A)
– Breaking current at least 10 kA
– Approval in compliance with IEC 60127-1 / EN 601127-1
– Switch off characteristics: B or C for circuit breakers and fuses
– Suitable for the protection of DC power supply circuits
WARNING
Operating Instructions, 03/2021, C79000-G8976-C428-08
SCALANCE XP-200
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