---
product_id: 715603524
title: "10PCS Kw12-3 Ac 250V 5A Spdt 1No 1Nc Micro Limit Switch Normally Open Close Limit Switch with Roller Lever Arm Black"
brand: "hiletgo"
price: "114 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Hi Letgo"
url: https://www.desertcart.ro/products/715603524-10pcs-kw12-3-ac-250v-5a-spdt-1no-1nc-micro
store_origin: RO
region: Romania
---

# AC 125-250V rated voltage 5A current capacity SPDT 1NO 1NC versatile switching 10PCS Kw12-3 Ac 250V 5A Spdt 1No 1Nc Micro Limit Switch Normally Open Close Limit Switch with Roller Lever Arm Black

**Brand:** hiletgo
**Price:** 114 Lei
**Availability:** ✅ In Stock

## Summary

> 🎯 Master every click with precision micro-switch power!

## Quick Answers

- **What is this?** 10PCS Kw12-3 Ac 250V 5A Spdt 1No 1Nc Micro Limit Switch Normally Open Close Limit Switch with Roller Lever Arm Black by hiletgo
- **How much does it cost?** 114 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/715603524-10pcs-kw12-3-ac-250v-5a-spdt-1no-1nc-micro)

## 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 Powerhouse:** Small 20x10.5x6.5mm size fits tight spaces effortlessly
- • **Bulk Pack Advantage:** 10-piece set ensures you’re always ready for your next project
- • **Versatile Application:** Perfect for automotive, home appliances, medical & industrial gear
- • **Precision Micro Control:** Instant, reliable switching with roller lever arm
- • **Durability You Can Trust:** Engineered for long-lasting performance in demanding environments

## Overview

The HiLetgo KW12-3 Micro Limit Switch is a compact, durable SPDT switch rated for AC 125-250V and 5A current. Featuring a roller lever arm for fast, reliable actuation, it’s ideal for diverse applications from automotive electronics to household appliances. This 10-pack offers professional-grade performance and versatility for engineers and makers who demand precision and longevity.

## Description

10pcs Black KW12-3 Micro Roll Lever Arm Usually Open Close Limit Switches, with Roller Lever. Working principle: through external mechanical force transmission elements (by pins, buttons, levers, rollers, etc.) will be used to force action on a pick, producing instant action of the pick when the action is shifted to the critical point, so that the mobile contact with the fixed contact spring at the end of the action point quickly on or off. When the force is removed in the drive components, the action pick produces the reverse action force transmission element, reverse stroke when the action hits a critical point pick, instant reverse action. Package included: 10*KW12-3 Micro Roller Limit Switches

Review: جيد جدا
Review: Solid little micro switches. Have stood up to time and continue to work.

## Features

- KW12-3 Roller Lever Arm Micro Limit Switch, Normally Open and Closed Diameter: 20 x 10.5 x 6.5 mm (L x W x H)
- Contact spacing is small and short action, according to the brake power small and fast.
- Rated Voltage: AC 125V-250V; Current Rating: 5A
- Application: Apply to a computer mouse, car mouse, automotive electronic products, communication equipment, military products, test instrument, gas water heater, gas burner, small household appliances, microwave oven, electric rice cooker, floating ball support equipment, medical equipment, building automation, power tools, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07X142VGC |
| Item model number | 3-01-1546 |
| Manufacturer | HiLetgo |
| Product Dimensions | 10 x 20 x 37 cm; 32 g |

## Product Details

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

## Images

![10PCS Kw12-3 Ac 250V 5A Spdt 1No 1Nc Micro Limit 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 26 October 2025*

جيد جدا

### ⭐⭐⭐⭐⭐ Review
*by M***. on 15 June 2025*

Solid little micro switches. Have stood up to time and continue to work.

### ⭐⭐⭐⭐⭐ Review
*by J***V on 8 August 2025*

Worked like a charm for my automotive needs and as advertised. I just wish you didn't have to buy a pack of 10 and had the option of buying a much lesser quantity. I guess I'll hold onto the extras as spares, just in case they wind up not being durable. Only time will tell...

## Frequently Bought Together

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-27*