
MS1-03 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $11.43 | Condition is New, 1pc DONGNAN MS1-03 high temperature resistant micro switch, shipping cost = $3.90 | 100.0% |
![]() | $11.43 | Condition is New, 1pc DONGNAN high temperature resistant micro switch MS1-03, shipping cost = $3.90 | 100.0% |
![]() | $15.99 | Condition is New, DONGNAN MS1-03 Micro Switch 2-Pins 3(1)A 125/250VAC Normally Closed, FREE SHIPPING | ![]() |
![]() | $11.80 | Top Pick! Condition is New, 1pc DONGNAN high temperature resistant micro switch MS1-03D0-C050-02, shipping cost = $6.00 | 100.0% |
![]() | $22.99 | Top Pick! Condition is New, 2x - DONGNAN MS1-03 Micro Switch 2-Pins 3(1)A 125/250VAC Normally Closed, FREE SHIPPING | ![]() |

The Dongnan MS1-03 2x Micro Switch is a versatile and reliable solution for your electrical automation needs. This switch comes as a pack of two, each featuring a 2-pin design and a 125/250VAC operating voltage, making it suitable for various applications in both residential and commercial settings.
The micro switches are of the normally closed (NC) type, which means that they are closed when no current is applied and open when the contact is activated by an external force. This configuration is commonly used in applications where it is essential to detect the presence or absence of an object, such as in door sensors or level sensors.
Each micro switch in the pack measures only 22mm in diameter and 15mm in height, making them compact and easy to install in even the most confined spaces. They are also designed with a robust and durable construction, ensuring a long service life and reliable performance even in demanding environments.
The MS1-03 micro switches have a maximum current rating of 0.5A and a maximum voltage rating of 250VAC, providing sufficient capacity for most low-power applications. They also feature a quick-connect terminal design, which simplifies the wiring process and saves time during installation.
In summary, the Dongnan MS1-03 2x Micro Switch is an excellent choice for those seeking a reliable, compact, and versatile solution for their electrical automation projects. With its 2-pin design, 125/250VAC operating voltage, and normally closed configuration, it offers a wide range of applications and can be easily integrated into various systems. Its compact size and quick-connect terminal design further add to its convenience and ease of use.
The Dongnan MS1-03 2x Micro Switch 2-pins 125/250VAC Normally Closed is a type of electrical switch used to open or close circuits based on their position. Here are some potential pros and cons of buying this switch:
Pros:1. Versatile: This micro switch can operate with a voltage range of 125VAC to 250VAC, making it suitable for various applications.
2. Normally Closed: The switch is designed to be in the closed position when not actuated, which can be useful in certain applications where power is only required when the switch is not activated.
3. Durable: The switch is built to withstand harsh environments and is suitable for industrial applications.
Cons:1. Limited Operating Life: Micro switches generally have a limited operating life compared to other types of switches. Regular maintenance and replacement may be required.
2. Manual Switch: The switch requires manual activation, which may not be suitable for applications where automatic switching is required.
3. Limited Current Handling Capacity: The switch has a limited current handling capacity, which may not be suitable for applications where high currents are required.
Ending Conclusion:The Dongnan MS1-03 2x Micro Switch 2-pins 125/250VAC Normally Closed can be a suitable option for applications that require a manual, normally closed switch with a voltage range of 125VAC to 250VAC. However, it may not be suitable for applications that require high current handling capacity or automatic switching. Regular maintenance and replacement may also be required due to the limited operating life of micro switches.
Recommendation:If you are looking for a manual, normally closed switch with a voltage range of 125VAC to 250VAC, then the Dongnan MS1-03 2x Micro Switch 2-pins 125/250VAC Normally Closed could be a good option for you. However, if you require a switch with high current handling capacity or automatic switching, then you may need to consider other options. Additionally, regular maintenance and replacement may be necessary to ensure the longevity of the switch.
Details:
Condition: brand new. Dongnan MS1-03 micro switch 2-pins 3/1 a 125/250vac normally closed. Quantity: 2 switches. Rating: 3/1 a 125/250vac.
Dimensions: length : 28mm.
specifications indusswitch:
- brand: Dongnan
- mpn: Ms1-03
- part type: Switch
- color: White
- material: Abs/plastic
- item length: 28mm
- switch style: Push Button/retractive
- item height: 15.9mm
- country of origin: China
- item width: 10.15
- button color: Black
seller indusswitch:
- # reviews: 950
- rating: 100.0%
- city: luverne, alabama
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Control Switches
payments indusswitch:
- credit card: mastercard
- wallet: google-pay
- other
offer indusswitch:
- started: november 7, 2025
- availability: in stock
- sold #: 11
- options: ship-to-home
- in stock #: 5
- prices: $11.43–$22.99
- item condition: New
returns indusswitch:
- paid by: seller
- policy: returns accepted
- method: money back
- time: 30 days
shipping indusswitch:
- transit: 6-12 days
- service: usps ground advantage
- class: standard
- carrier: usps
- type: calculated





