Can i use these with DC voltages?

These switches are rated at 5/120 and 3/240 AC , contacts are silver plated which is good for AC but not for DC since platting is so thin and contact resistance so good you will end up with weld contacts, I have been using these switches on 30 ma up to 500ma no problem what so ever

I'm not an electronics person, so I'm not sure how to read the diagram; what are each of the terminals for? How do you wire this switch into a circuit

It depends on the circuit which you will be wiring the switch into. A wire needs to be connected to the (C)ommon connection opposite of the roller. You then need to determine if you need the switch in the open or closed position when the switch is not activated. I use the common and the normally open for my CNC milling machine limit switches.

Any recomendation of spade Wire Connector for it? 3.3mm is odd size.

the connections are solder lugs, not too well suited for use with a female spade connector. The switch dimensions dictate the size of the connections, and limit them so that, when installed, the connections won't contact a mounting surface. Plus -- the nature of use, with something actuating the switch mechanically, somewhat dictates a more mechanically secure connection than you might expect with a push-on connector. If you must use one, consider a short flexible wire pigtail soldered to each terminal, then add the connector of choice to the end of that wire for your chosen connector.

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10 Pces Micro Limit Switch Kw12-3 Ac 250V 5A Spdt 1No 1Nc Micro Switch Normally Open Close Limit Switch with Roller Lever Arm Black

Product ID: 715603524

Details

Connector type
Smt
Contact type
Normally Open
Current rating
5 Amps
Operating voltage
250 Volts (AC)
Operation mode
manual

⚡5A current rating

🔄SPDT 1NO 1NC versatile switching

🎛️Compact 20x10.5x6.5mm size

$U1231

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Description

⚙️ Elevate your projects with micro precision and power-packed performance!

DUAL MODE FLEXIBILITY - Seamlessly toggle between Normally Open and Normally Closed states to fit any application.
COMPACT DURABLE DESIGN - Sleek black micro switch with roller lever arm fits tight spaces without compromising reliability.
PRECISION INSTANT ACTION - Experience lightning-fast switching with minimal contact spacing for ultra-responsive control.
ROBUST 5 A POWER HANDLING - Supports up to 250V AC and 5 Amps, perfect for demanding electronic and automation setups.
VERSATILE INDUSTRY APPLICATIONS - Trusted across automotive, medical, home appliances, and military-grade equipment for ultimate dependability.

The HiLetgo KW12-3 Micro Limit Switch is a compact, high-performance SPDT switch featuring a roller lever arm, rated for 250V AC and 5A current. Designed for rapid, precise switching with Normally Open and Normally Closed contacts, it fits seamlessly into diverse applications from automotive electronics to home appliances and industrial automation. Each pack includes 10 durable black switches engineered for reliability and versatility.

Specifications

ASIN	B07X142VGC
Brand Name	HiLetgo
Circuit Type	1-way
Color	black / black
Compatible Devices	computer mouse, car mouse, automotive electronic products, communication equipment, military products, test instrument, gas water heater, gas burner, small household appliances, microwave oven, rice cooker, floating ball support equipment, medical equipment, building automation, power tools
Connector Type	Smt
Contact Type	Normally Open
Current Rating	5 Amps
Customer Reviews	4.7 4.7 out of 5 stars (700)
International Protection Rating	IP54
Item Dimensions	10 x 20 x 37 centimeters
Manufacturer	HiLetgo
Material Type	Plastic
Model	3-01-1546
Mounting Type	PCB Mount
Number of Items	10
Number of Positions	2
Operating Voltage	250 Volts (AC)
Operation Mode	manual
Part Number	3-01-1546
Switch Type	Limit Switch
Terminal	Spdt
Unit Count	10.0 Count
Wattage	1250 watts

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$U1231

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered 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 Uruguay.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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