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Home > Alarm Troubleshooting > 1166 Earth Line Choke

1166 Earth Line Choke

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Protects steel boxed control panels against RFI signals
Prevents RFI signals from feeding back from mains Earth and onto the 0V - this can affect the 12VDC supply to the control panel, communicator and alarm detectors
Connects in line with mains Earth inside the control panel

£10.80

£12.96 inc. VAT

List Price £12.00

Buy 10 for £102.00 (£10.20 each) Save £6.00
Buy 25 for £240.00 (£9.60 each) Save £30.00

FIT AS STANDARD

Many metal control panels connect 0 Volt of the 12VDC supply to the metal box which in turn is connected to mains Earth. This literally means that the 0 Volt to your PIR`s, Keypads and LIM`s are directly connected to all water pipes and electrical appliances in the street! This allows RFI interference (and nearby lightning) to feed back from mains Earth onto the 0 Volt of your 12 Volt supply. Thankfully, this problem can be overcome by fitting an ACT 1166 High Frequency Earth Line Choke in series with the incoming mains Earth supply at the panel.

An essential alarm troubleshooting solution.

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