Earth Line Choke - 1166 High Frequency - Protection for Metal Control Panels

1166 Earth Line Choke

As the DC negative (0 volt) is often connected to the metal case of the control panel, radio frequency interference (RFI) from other appliances connected to earth can cause unexplained false alarms and equipment malfunctions. To prevent this fit an ACT 1166 Earth Line Choke in series with the earth supply at the control panel.

• Prevents electrical RFI from affecting the 12VDC supply on metal alarm control panels
• Connect in line with mains earth inside the control panel

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