Mercury Switch
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This mercury tilt switch uses a small amount of liquid mercury inside a sealed glass tube to make or break an electrical circuit based on orientation. It is ideal for tilt sensing, vibration detection, and position control applications. The switch offers reliable, spark-free operation with low contact resistance and high insulation resistance, making it suitable for hazardous environments.
add_circle The Upside
- check Highly reliable and durable due to sealed construction
- check No spark generation enhances safety in flammable environments
- check Simple tilt-based operation with immediate response
remove_circle The Downside
- close Contains mercury, which is toxic and environmentally hazardous
- close Not suitable for high-current applications
- close Orientation-dependent; may not work in all mounting positions
Specifications & features
Key features
- check_circle Sealed glass tube prevents mercury oxidation and contamination
- check_circle Spark-free operation for use in hazardous areas
- check_circle Activates at tilt angles between 7 and 25 degrees
- check_circle Contact resistance less than 1 ohm when closed
- check_circle Insulation resistance greater than 100M ohms at 500V DC
Specifications
Contact Resistance
Less than 1 ohm when closed
Insulation Resistance
Greater than 100M ohms at 500V DC
Material
Sealed glass envelope, mercury, metal electrodes
Operating Angle
7 to 25 degrees tilt
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