CONTACT REED MK471B MEDER

Descriere

• Sensors from the MK- series are magnetically operated reed proximity switches for direct PCB mounting. The sensor should be mounted onto a fixed surface with the actuating magnet on the moving surface.
• The reed switch and permanent magnet must remain at a certain distance apart. Approximation resp. removal of the magnetic field determines the closing and opening of the Reed switch.
• The magnetic operate sensitivities are divided into different AW classes.
• The contact is made of ferromagnetic reeds which are melted within a gas-proof glass tube.
• The parallel ends overlap each other to form a magnetic gap.
• Due to a magnetic field the contact paddles take opposite polarity and close with sufficient strength.

Application
• Keyboard applications
• Lever hoists
MK65G and MK67B as well as:
• Telecommunications
• Door switches for domestic appliances
• Limit switch for low-power signals
• Position indicators in lifts/elevators

Structure
• MK471B: Sensor with assembly holes for screw attachment, 1 contact, with 500mm long connection cable (flat, twin cable, 2x0,14mm²), cable end cut, 5mm stripped and tinned

Technical Specifications
• Switching Capacity, Max.: 10W
• Switching Voltage, Max.: 180V DC
• Switching Current, Max.: 0.5A
• Carry Current, Max.: 1.25A
• Contact Resistance, Max.: 150mOhm
• Breakdown Voltage, Min.: 225V DC
• Initial Excitation (Reference Value): 10...15AT
• Initial Excitation: 23...44AT