---
product_id: 193693076
title: "10pcs Micro Limit Switch KW12-3 AC 250V 5A SPDT 1NO 1NC Micro Switch Normally Open Close Limit Switch with Roller Lever Arm Black"
brand: "hiletgo"
price: "48 zł"
currency: PLN
in_stock: true
category: "Hi Letgo"
url: https://www.desertcart.pl/products/193693076-10pcs-micro-limit-switch-kw12-3-ac-250v-5a-spdt
store_origin: PL
region: Poland
---

# 5A current rating SPDT 1NO 1NC dual contact Roller lever arm actuator 10pcs Micro Limit Switch KW12-3 AC 250V 5A SPDT 1NO 1NC Micro Switch Normally Open Close Limit Switch with Roller Lever Arm Black

**Brand:** hiletgo
**Price:** 48 zł
**Availability:** ✅ In Stock

## Summary

> 🎯 Elevate your control game with precision micro-switch power!

## Quick Answers

- **What is this?** 10pcs Micro Limit Switch KW12-3 AC 250V 5A SPDT 1NO 1NC Micro Switch Normally Open Close Limit Switch with Roller Lever Arm Black by hiletgo
- **How much does it cost?** 48 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/193693076-10pcs-micro-limit-switch-kw12-3-ac-250v-5a-spdt)

## Best For

- hiletgo enthusiasts

## Why This Product

- Trusted hiletgo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Durable Design:** Sleek 20x10.5x6.5mm footprint with IP54 protection ensures longevity in industrial and home setups.
- • **Dual Contact Versatility:** Seamlessly toggle between Normally Open and Normally Closed states for flexible applications.
- • **Plug & Play Compatibility:** Perfect for everything from smart home appliances to automotive electronics—upgrade your projects effortlessly.
- • **Robust 5A Current Handling:** Reliable performance under up to 250V AC and 5A current load—built for demanding environments.
- • **Precision Fast-Response Switch:** Experience ultra-short stroke action for lightning-fast electrical control.

## Overview

The HiLetgo KW12-3 Micro Limit Switch is a compact, high-performance roller lever switch rated for 250V AC and 5A current. Featuring SPDT contacts with both Normally Open and Normally Closed options, it delivers fast, reliable switching action in a durable IP54-rated plastic housing. Ideal for diverse applications including automotive electronics, home appliances, and industrial automation, this 10-pack offers professional-grade versatility and durability for your next project.

## Description

10Pcs Black KW12-3 Micro Roller Lever Arm Normally Open Close Limit Switches, with Roller Lever. Working principle: By external mechanical force transmission elements (by pins, buttons, levers, rollers, etc.) will be used to force action on a reed, producing reed instantaneous action when action shifted to the critical point, so moving contact with the fixed contact spring at the end of the action point fast on or off.When the force is removed on the drive components, action reed produce reverse action force transmission element reverse stroke when the action reaches a critical point reed, instantaneous reverse action. Package included： 10* KW12-3 Micro Roller Limit Switches

## Features

- KW12-3 Roller Lever Arm Micro Limit Switch, Normally Open and Close Diamension: 20 x 10.5 x 6.5mm (L x W x H)
- Contact spacing is small,short stroke action,according to the power of small,fast-break.
- Rated voltage: AC 125V-250V; Current rating: 5A
- Application:Apply in A computer mouse, car mouse, automobile electronic products, communications equipment, military products, test instrument, gas water heater, gas burner, small home appliance, microwave oven, electric rice cooker, floating ball supporting equipment, medical equipment, building automation, electric tools, ect.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07X142VGC |
| Actuator Type | Lever |
| Best Sellers Rank | #5,334 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Limit Switches |
| Brand Name | HiLetgo |
| Color | Black |
| Compatible Devices | computer mouse, car mouse, automobile electronic products, communications equipment, military products, test instrument, gas water heater, gas burner, small home appliance, microwave oven, electric rice cooker, floating ball supporting equipment, medical equipment, building automation, electric tools |
| Compatible with Vehicle Type | automobile |
| Connectivity Protocol | X-10 |
| Connector Type | Smt |
| Contact Material | Nickel-plated Metal |
| Contact Type | Normally Open |
| Control Method | Touch |
| Control Type | manual |
| Current Rating | 5 A |
| Customer Reviews | 4.7 4.7 out of 5 stars (719) |
| International Protection Rating | IP54 |
| Item Dimensions | 3.94 x 7.87 x 14.57 inches |
| 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 |
| Operation Mode | manual |
| Part Number | 3-01-1546 |
| Specification Met | Ip54 |
| Switch Type | Limit Switch |
| Terminal | Spdt |
| Unit Count | 10 Count |
| Wattage | 1250 watts |

## Product Details

- **Brand:** HiLetgo
- **Connector Type:** Smt
- **Contact Type:** Normally Open
- **Current Rating:** 5 A
- **Item dimensions L x W x H:** 3.94 x 7.87 x 14.57 inches
- **Material:** Plastic
- **Operating Voltage:** 250 volts
- **Operation Mode:** manual
- **Switch Type:** Limit Switch
- **Terminal:** Spdt

## Images

![10pcs Micro Limit Switch KW12-3 AC 250V 5A SPDT 1NO 1NC Micro Switch Normally Open Close Limit Switch with Roller Lever Arm Black - Image 1](https://m.media-amazon.com/images/I/51r8DLmZQ9L.jpg)

## Questions & Answers

**Q: Can i use these with DC voltages?**
A: 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**
A: 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: What are the rollers made of, metal?**
A: no red plastic

**Q: Any recomendation of spade Wire Connector for it? 3.3mm is odd size.**
A: 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.

## Frequently Bought Together

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-09-18*