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

🔒Max switch current 500mA, power 10W

2211 kr

Duties & taxes included

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Lock in peace of mind with precision-triggered security!

EASY INSTALLATION - Includes mounting screws and supports quick setup on wooden surfaces
ROBUST RELIABLE - Nickel contacts and IP65 rating ensure durability and weather resistance
COMPACT DISCREET - Slim 55x12.5x11.5mm design fits perfectly on doors and windows without bulk
DUAL MODE SECURITY - Normally Open & Closed contacts for versatile alarm setups
SEAMLESS INTEGRATION - Compatible with alarms, GPS, LED, and relay devices for smart home synergy

This 2-set Magnetic Reed Switch kit offers reliable door and window security with dual NC/NO contact types, supporting low voltage devices (5V/12V/24V DC). Featuring a precise 5-20mm trigger range and durable nickel contacts, it integrates seamlessly with alarms, GPS, and LED systems. Compact and weather-resistant (IP65), it’s designed for easy installation on wooden surfaces, making it an essential upgrade for proactive theft deterrence.

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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