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HiLetgo

Q: 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

Q: 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.

Q: 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.

Product ID: 715603524

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Details

Operation mode
manual
Contact type
Normally Open
Connector type
Smt
Brand
HiLetgo
Switch type
Limit Switch

⚡AC 250V / 5A power rating

🎯Precise micro contact spacing

🔄Durable roller lever arm

Frequently Bought Together

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Description

⚙️ Switch to precision and power – don’t get left behind!

RAPID RESPONSE - Small contact spacing ensures fast, reliable switching action
HIGH VOLTAGE READY - Supports AC 125V-250V for versatile industrial and home use
ROBUST ROLLER LEVER - Smooth mechanical operation with enhanced durability under repeated use
DUAL MODE FLEXIBILITY - Normally Open and Normally Closed contacts for adaptable circuit design
WIDE APPLICATION SPECTRUM - Perfect for automotive, medical, home appliances, and automation systems

The HiLetgo KW12-3 Micro Limit Switch features a compact 20x10.5x6.5mm design with a durable roller lever arm, rated for AC 125-250V and 5A current. Its precise contact spacing enables fast switching, making it ideal for diverse applications from automotive electronics to home appliances and industrial automation.

Have a Question? See What Others Asked

Can i use these with DC voltages?

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

What are the rollers made of, metal?

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

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