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Heavy Duty Wired Alarm Magnetic Garage Door Contact Switch Sensor NC with Adjustable Bracket

Heavy Duty Wired Alarm Magnetic Garage Door Contact Switch Sensor NC with Adjustable Bracket

Q: Can this be used on a 24V Hvac system? To shut the system off when the garage door is open?

Voltage would be okay, but you’d be better to use this switch to trigger an SSR as I’m not sure of the current demand of the HVAC system.

Q: Can this be used directly in a 110v circuit with a LED (9w) lamp?

Dry closure contacts can be used in combination with a switching relay to accommodate high voltage applications.

Q: How does this work to advise you the garage door is open?

The circuit is closed when the door is closed. When the door is open, the alarm will trip.

Q: 12v circuit in series with switch sensor and a 12v solenoid (60ma) load. Why is the switch closed permantly when activated by magnetic?

It sounds like you are attempting to use this magnetic switch to control an output device, as per the solenoid. The switch would be designed to be used as an input interrupting device to trigger an open circuit on an alarm system. Even though only 60ma draw, it may be too much for the switch to let go of the contacts under draw. Two things you can try. An alarm system would use a 4.7K ohm resistor at the end of the line of a single circuit across the + and - terminals. This would draw down any lingering power in the circuit and possibly release the contact. If you have done that and it is not fixing the error, you could try running the magnetic switch to a small trigger relay, and have the relay switch the solenoid. If you are still unsuccessful, a mechanical limit switch in place of the magnetic trigger switch would be necessary and should solve your issue.

Product ID: 371678443

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🔒NC contact for secure OFF switch

⚙️Adjustable bracket for perfect fit

🛠️Zinc alloy metal housing for durability

Frequently Bought Together

Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC with Adjustable Bracket

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

WESUA Magnetic Switch Alarm Sensor Overhead Garage Door Contacts with L Bracket

Description

🔐 Lock in your home’s safety with heavy-duty precision!

BUILT TO LAST - Premium zinc alloy housing resists wear and tear, built for heavy-duty daily use.
PLUG PROTECT - Wired with a 380mm armored cable for reliable, tamper-resistant connectivity.
WIDE OPERATION GAP - ≥50mm gap tolerance means flexible installation without compromising sensitivity.
ROCK SOLID SECURITY - NC contact type ensures your alarm triggers the moment the magnet moves away—no false alarms, just peace of mind.
CUSTOM FIT ZERO HASSLE - Adjustable bracket lets you mount it perfectly on any roller shutter or garage door with ease.

The GAGALOR Heavy Duty Wired Alarm Magnetic Garage Door Contact Switch Sensor features a robust zinc alloy housing and an adjustable bracket for easy mounting on roller shutter and garage doors. It operates with a normally closed (NC) contact that switches off when the magnet moves away, ensuring reliable alarm activation. Designed for surface mounting with a ≥50mm operation gap, it includes a 380mm armored cable for secure wired connection, supporting up to 28V DC and 0.2A current for heavy-duty home security applications.

Have a Question? See What Others Asked

Can this be used on a 24V Hvac system? To shut the system off when the garage door is open?

Can this be used directly in a 110v circuit with a LED (9w) lamp?

How does this work to advise you the garage door is open?

12v circuit in series with switch sensor and a 12v solenoid (60ma) load. Why is the switch closed permantly when activated by magnetic?

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