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Free Fall Fire Valve Mercury Switch Landon Kingsway mercury switch
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Free Fall Fire Valve Mercury Switch

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Free Fall Fire Valve Mercury Switch


LK Datasheet_Valve Mounted Mercury Switch   Download

Valve Mounted Mercury Switch

The Landon Kingsway mercury switches are designed to be used in conjunction with our Free-Fall Fire Valves to provide position sensing or to cut power to oil burner pump motors in the event of a fire.

The unit is available in both a single and three-phase style although the three connections on the three-phase version could be used to control three single-phase devices.

Both versions contain contacts that remain closed while the valve is in its’ normal state (one contact on the single phase, 3 on the 3-phase) and a separate normally open contact that is suitable for sounding an alarm as it closes if the valve lever drops.

Free Fall Fire Valve Mercury Switch Landon Kingsway mercury switch
Valve Mounted Mercury Switch
Mercury Switch mounted

Technical Specification

Enclosure: Weatherproof grey epoxy coated steel plate. IP65
Dimensions: 139 x 177 x 48mm

Fixing Centres: 102mm
Electrical Entry: 20mm conduit knockout

Contact Rating: 5A, 250v AC max.
Weight:0.6kg

Free Fall Fire Valve Mercury Switch Landon Kingsway mercury switch
Mercury Switch
Free Fall Fire Valve Mercury Switch Landon Kingsway mercury switch
Mercury Switch
Free Fall Fire Valve Mercury Switch Landon Kingsway mercury switch
Mercury Switch