Installation BAT-R
Release 09 03/2017
9
Requirements for connecting the supply voltage
Enable the supply voltage for the device only when the following
requirements are fulfilled:
The following requirements apply without restrictions:
All variants
All
of the following requirements are complied with:
The supply voltage corresponds to the voltage specified on the type
plate of the device.
The power supply conforms to overvoltage category I or II.
The power supply has an easily accessible disconnecting device
(e.g., a switch or a plug). This disconnecting device is clearly
identified. So in the case of an emergency, it is clear which
disconnecting device belongs to which power supply cable.
The cross-section of the ground conductor is the same size as or
bigger than the cross-section of the power supply cables.
Only for device
variants featuring
supply voltage with
characteristic
value C or W:
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
as per 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 52.
Only for device
variants featuring
supply voltage with
characteristic
value K:
All
of the following requirements are complied with:
Supply with DC voltage:
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 52.
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 52.
The wire diameter of the power supply cable is at least 0.75 mm²
(North America: AWG18) on the supply voltage input.
Table 2:
Requirements for connecting the supply voltage
Summary of Contents for BAT-R
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