can I use this magnetic switch to open and close rv steps

I would advise using these to operate a power relay. The contacts in the reed switch are delicate, by using the reed switch to open and close a HD relay, the relay could then operate a hydraulic system, light duty, to raise and lower your steps. Seek help from an electrician, to design a suitable circuit. W.

What size wire should I use?

18 gauge 2 wire [18/2] or 22 gauge 2 wire [22/2] security alarm cable works best.

Porque se calienta el interruptor magnético ???

Es normal que tenga una temperatura que no exceda mucho siempre que esté. Respetando el amperaje de la capacidad de los switch. Eso kiere decir que ocupa poner luces led y es recomendable no conectar muchas luces en un solo switch

It's a roll up garage door?

it MIGHT work, but I would not recommend this set for a rough environment like a garage. Instead find one like https://www.amazon.com/Honeywell-Ademco-Overhead-Door-Contacts/dp/B0006M1I1W/ref=sr_1_4?ie=UTF8&qid=1518396534&sr=8-4&keywords=garage+door+alarm+sensor Honeywell is a good brand for sensors and panels.

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2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light

2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light

Product ID: 46346044

Details

Brand
SpzcdZa
Circuit Type
1-way or 2-way
Connector Type
Screws
Contact Type
Normally Open
Current Rating
0.5 A
Material
Wood Wooden

📏Trigger range 5-20mm for precise detection

🔋Supports 5V/12V/24V DC power

🔧Includes mounting screws for easy installation

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Description

🔐 Secure smarter, not harder — magnetic precision for peace of mind!

DUAL MODE FLEXIBILITY - Switch between Normally Open (NO) and Normally Closed (NC) for tailored security setups
PLUG PLAY INSTALLATION - Surface-mount design with included screws makes setup quick and hassle-free
COMPACT DISCREET DESIGN - Slim 55x12.5x11.5mm profile blends effortlessly with doors and windows
RELIABLE THEFT DETERRENCE - Enhance your home or office security with magnetic sensors trusted for years
WIDE VOLTAGE COMPATIBILITY - Operates seamlessly across 5V, 12V, and 24V DC systems to fit your existing devices

This 2-set Magnetic Reed Switch kit offers versatile door and window security with Normally Open and Normally Closed contact options. Designed for low voltage devices (5V/12V/24V DC), it features a precise 5-20mm trigger range and a compact form factor ideal for discreet installation. Perfect for enhancing existing alarm systems or DIY security projects, it includes mounting hardware and supports up to 100V and 0.5A current, delivering reliable theft deterrence with easy setup.

Specifications

ASIN	B0735BP1K4
Actuator Type	Push Button
Best Sellers Rank	#843 in Home Security Systems
Brand Name	SpzcdZa
Circuit Type	1-way or 2-way
Color	White
Compatible Devices	Alarm systems, LED devices, Relays, GPS devices
Compatible with Vehicle Type	pick-up trucks
Connectivity Protocol	X-10
Connector Type	Screws
Contact Material	Nickel
Contact Type	Normally Open
Control Method	App
Control Type	state detection
Current Rating	0.5 A
Customer Reviews	4.2 4.2 out of 5 stars (624)
International Protection Rating	IP65
Item Weight	18.14 g
Manufacturer	SpeedDa
Material Type	Wood,Wooden
Model	3bdd6712-47c9-400d-87cd-099a6d8b19eb
Mounting Type	Door Mount
Number of Items	2
Number of Positions	2
Operating Voltage	100 volts
Operation Mode	OFF-NONE-ON
Part Number	M1706230002
Switch Type	DIP Switch
Terminal	Screw
Unit Count	2 Count
Wattage	10 watts

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₩22142

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

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TrustScore 4.5 | 7,300+ reviews

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