Vdc Power Supply - Siemens SIMATIC NET SCALANCE XR-300WG Operating Instructions Manual

6.4

24 VDC power supply

Safety extra low voltage
Power supply
The device is designed for operation with a directly connectable safety extra-low voltage
(SELV).
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:
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.
SCALANCE XR-300WG
Operating Instructions, 03/2021, C79000-G8976-C454-07
WARNING
– 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
Connecting up
6.4 24 VDC power supply
55