Amazon.com: Magnetic Contact Switch
Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, for Closed Loop Circuits, 3" Gap, Weatherproof, Mounting Bracket Included
Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch ...
2015年7月15日 · Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, For Closed Loop Circuits, 3" Gap, Weatherproof, Mounting Bracket Included Key Features: - Used for overhead doors in both industrial and residential situations where a wide gap is present - Adjustable to fit most door-channel widths ...
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9540 Recessed Contact/Door Position Switch (RCI) - dormakaba
The 9540 recessed magnetic contact/door position switch is self-locking in steel and wood. It is available in black or white finish with a ¾” diameter recessed magnetic contact. The RCI 9540 switch is SPDT configured and features an open/closed loop type.
Magnetic Switches - McMaster-Carr
Choose from our selection of magnetically actuated switches, magnetic contact alarm switches, magnetic bases, and more. In stock and ready to ship.
What is a Magnetic Contact? - Alarm Grid
A magnetic contact is a door and window sensor that functions using an internal reed switch in conjunction with a magnet. This is the most common way for a door and window sensor to operate.
Amazon.com: Magnetic Contact Sensor
Seco-Larm SM-4601-L3Q Industrial Wide-Gap Magnetic Contact Switches, 3" Operation Gap NO/NC, Open/Closed Loop (3 Wires)
Magnetic Door Contacts - McMaster-Carr
Choose from our selection of magnetic door contacts, including magnetic contact alarm switches, magnetically actuated switches, and more. In stock and ready to ship.
Magnetic contact switch (door sensor) - Adafruit Industries
This sensor is essentially a reed switch, encased in an ABS plastic shell. Normally the reed is 'open' (no connection between the two wires). The other half is a magnet. When the magnet is less than 13mm (0.5") away, the reed switch closes. They're often used to detect when a door or drawer is open, which is why they have mounting tabs and screws.
What is a Magnetic Contactor? – Principle, Types, Advantages
Used to open and close the contacts in the motor control circuit, may also be called a magnetic switch or a contactor. A magnetic contactor is a device that is very often used in industry. Commercial, large industries are very much dependent on this device.
RCI, 9530 Balanced Magnetic Contact Switch - maglocks
The RCI 9530 is configured as a SPDT switch with magnetic tamper. The end-of-line resistors may be used to allow a predetermined trickle of current to flow and permit operation from a supervised line at all times.