Mercury Tilt Switches

Mercury Tilt Switches
A mercury tilt switch is an electrical switch that opens and closes a circuit what a small amount of liquid mercury connects with metal electrodes. When tilted in one direction the switch is either open or closed, and then in the opposite when tilted in the other direction.
Due to the fact that mercury is a poisonous metal, any devices containing mercury must be treated as hazardous. With current RoHS restrictions, mercury has been eliminated in most modern applications.
Advantages
• The contacts are enclosed to stop oxidation
• Can be used in hazardous locations
• Low resistance
• Quiet operation
Applications
Mercury tilt switches are commonly used in older style thermostats used to turn a heater or air conditioning on or off. Another use is in construction equipment and lift vehicles by being used as a rollover warning when operating in rugged terrains.
Vending machines also include tilt switches and are used to activate an alarm when someone tries to rock or tilt the machine.
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Rincian Komponen Brand Stock Differential Angle Maximum Current Maximum ac Voltage Terminal Type Contact Resistance Diameter Length Width Depth Minimum Operating Temperature Maximum Operating Temperature Dimensions
Mercury tilt switch w/2 electrodes,240V Assemtech 1173 10 ° 250 mA 120V Wire Lead 6 mm 27.3mm - - -37°C +100°C 27.3 x 5.94 mm
10 (Horizontal) °, 4 (Vertical) ° Mercury Tilt Switch, 500 mA, 110V Assemtech 1050 10 (Horizontal) °, 4 (Vertical) ° 500 mA 110V - - - 30mm 20mm 7mm -20°C +70°C 30 x 20 x 7 mm
Insulated steel mercury tilt switch,5A Assemtech 407 15 ° 10 A 240V Wire Lead 300mΩ 13 mm 196.5mm - - -20°C +70°C 196.5 x 13 mm
SMT encapsulated tilt switch,240Vrms 1A RS Pro 298 10 ° 1 A 220V Cable 300mΩ - 347mm 12mm 11mm -20°C +70°C 12 x 11 x 347 mm
45 ° Mercury Tilt Switch, 500 mA, 120V Assemtech 229 45 ° 500 mA 120V Wire Lead 30mΩ 10 mm 21.3mm - - -37°C +100°C 21.3 x 9.5 mm
Encapsulated tip over switch,NC 240Vac Assemtech 89 35 ° 12.5 A 240V Wire Lead 30 mm 226.5mm - - -20°C +105°C 226.5 x 30 mm
Insulated steel mercury tilt switch,19A Assemtech 58 15 ° 19 A 240V Wire Lead 300mΩ 22 mm 210.5mm - - -20°C +70°C 210.5 x 21.5 mm
6 ° Mercury Tilt Switch, 250 mA, 60V Assemtech 52 6 ° 250 mA 60V Wire Lead 15 mm 11.12mm - - -37°C +100°C 11.12 x 15.37 mm
5 ° Mercury Tilt Switch, 100 mA ac, 200 mA dc, 120V Assemtech 0 5 ° 100 mA ac, 200 mA dc 120V PCB - 10.08mm 7.14mm 4.62mm -37°C +100°C 10.08 x 7.14 x 4.62 mm
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