Protective elements
104
Building Technologies 008725_h_en_--
Fire Safety & Security Products 06.2011
38 Protective elements
Purpose
Protection from overvoltage and electromagnetic influences (EMI).
Normal usage
Control panel
No extra protective measures needed. All plug-in modules have integrated pro-
tection from overvoltage and electromagnetic influence, but no protection from
lightning.
Installation
As a rule use twisted cables, for detector lines, data lines, external supply
lines and lines to alarm devices.
Special measures
In systems at particular risk of lightning strikes, such as:
– Switchyards
– Alpine transmission installations
Provide surge arrester for mains supply line
If extreme HF mains faults are expected
Provide mains filter for mains supply line
B3P020
Z3I041
If Z3I041 or B3P020 is used, and fitted near the
mains terminals, E3M060/071/171/120 + E3C011
are not possible on item 36!
For details –> see documents 001260 and 1683
Components
B3P020 A5Q00008751 250 V AC / 6 A mains filter
Z3I041 4962900001 230 V AC surge arrester kit
Z3I121 4963000001 110 V AC surge arrester kit
– 5645750001 C mounting rail TS32 L=108 mm
To Next Page
Loading...
Need help?
General
