User's Manual

Table Of Contents
Installation BAT-F
Release
18
07/2020
11
Only for device
variants featuring
supply voltage with
characteristic
value C (24 V DC ...
48 V DC) or W
(24 V DC):
The wire diameter of the power supply cable is at least 1 mm² (North
America: AWG16) on the supply voltage input.
The following requirements are alternatively complied with:
Alternative 1 The power supply complies with the requirements
for a limited power source (LPS) as per EN 60950-1.
Alternative 2 Relevant for North America:
The power supply complies with the requirements
according to NEC Class 2.
Alternative 3 All of the following requirements are complied with:
The power supply complies with the
requirements for a safety extra-low voltage
(SELV) as per IEC/EN 60950-1.
A fuse suitable for DC voltage is located in the
plus conductor of the power supply.
The minus conductor is on ground potential.
Otherwise, a fuse is also located in the minus
conductor.
Regarding the properties of this fuse:
See “General technical data” on page 63.
Only for device
variants featuring
supply voltage with
characteristic
value K (60 V DC ...
250 V DC /
110 V AC ...
230 V AC, 50 Hz ...
60 Hz):
All of the following requirements are complied with:
Supply with DC voltage:
A back-up fuse suitable for DC voltage is located in the plus conductor
of the power supply.
The minus conductor is on ground potential. Otherwise, a back-up
fuse is also located in the minus conductor.
Regarding the properties of this back-up fuse:
See “General technical data” on page 63.
The wire diameter of the power supply cable is at least 1 mm² (North
America: AWG16) on the supply voltage input.
Supply with AC voltage:
A fuse is located in the outer conductor of the power supply.
The neutral conductor is on ground potential at both voltage inputs.
Otherwise, a fuse is also located in the neutral conductor.
Regarding the properties of this fuse:
See “General technical data” on page 63.
The wire diameter of the power supply cable is at least 0.75 mm²
(North America: AWG18) on the supply voltage input.
The following requirements apply without restrictions:
Table 2: Requirements for connecting the supply voltage