Table of Contents
Advertisement
Connection
6.1 Safety when connecting up
Safety information when using in accordance with UL 61010-2-201
If you use the device under UL 61010-2-201 conditions you must also keep to the
following safety notices in addition to the general safety notices for protection against
explosion:
NOTICE
Suitable fusing for the power supply cable
The current at the connecting terminals must not exceed 3 A. Use a fuse for the power
supply that protects against currents > 3 A.
• In areas where NEC or CEC are used, the following requirements must be met:
• In other areas, the following requirements must be met:
You do not need a fuse for the power supply cable if you use a voltage source according
LPS or NEC Class 2.
NOTICE
Protective ground
A PELV circuit contains a connection to protective ground. Without a connection to
protective ground, or in case there is a fault in the connection to the protective ground,
the voltage for the circuit is not stabilized (limited).
NOTICE
The "Limited Energy" circuit and other circuits must be separated by at least basic
insulation.
NOTICE
The digital outputs are not permitted to come into contact with hazardous voltages and
non-energy limited circuits. The permissible nonhazardous voltages are SELV/PELV as
per UL 61010-2-201. The energy limited circuit as per clause 9.4 of UL 61010-1 or LPS
of UL 60950 or Class 2 of UL 1310 or UL 5085-1 & UL 5085-3 are considered as
equivalent.
54
– Suitable for DC (min. 60 V / max. 3 A)
– Breaking current min. 10 kA
– UL/CSA listet (UL 248-14 / CSA 22.2 No. 248.14)
– Classes R, J, L, T or CC
– Suitable for DC (min. 60 V / max. 3 A)
– Breaking current min. 10 kA
– Permitted for electric circuits according to IEC / EN 60947-1/2/3
– Breaking characteristics: B or C for circuit-breakers or fuses
Operating Instructions, 03/2022, C79000-G8976-C653-01
SCALANCE WxM763
Advertisement
Table of Contents
