
BJ-KW4AS-10 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $12.20 | Condition is New, BOJACK Micro Limit Switch with Momentary Roller Lever Arm SPDT 1NO 1NC 3 Pins..., FREE SHIPPING | 100.0% |
![]() | $12.66 | Condition is New, BOJACK Micro Limit Switch with Momentary Roller Lever Arm SPDT 1NO 1NC 3... , FREE SHIPPING | 99.8% |
![]() | $13.17 | Top Pick! Condition is New, BOJACK Micro Limit Switch with Momentary Roller Lever Arm SPDT 1NO 1NC 3..., FREE SHIPPING | 100.0% |
![]() | $13.99 | Condition is New, BOJACK Micro Limit Switch with Momentary Roller Lever Arm SPDT 1NO 1NC 3... , FREE SHIPPING | 99.3% |

Introducing the Bojack BJ-kw4as-10 Micro Limit Switch, a versatile and reliable solution for various automation applications. This momentary roller lever switch is designed with an SPDT (Single Pole Double Throw) configuration, featuring one normally open (NO) and one normally closed (NC) pin.
The switch comes with a 5A current rating and a 125V maximum voltage rating, making it suitable for low to medium power circuits. Its micro size offers the advantage of occupying minimal space in your project setup.
The Bojack BJ-kw4as-10 utilizes a momentary roller lever mechanism. When the user presses the lever, it completes the electrical circuit between the NO and COM terminals, allowing current to flow. Once the pressure is released, the circuit breaks, and the switch returns to its normal state, connecting the NC terminal to the COM.
The switch's compact design includes a roller lever arm, which provides a positive tactile feedback when actuated. The SPDT configuration allows you to switch between two circuits using the same switch, providing added convenience and flexibility to your project.
Constructed with robust materials, this micro limit switch ensures durability and long-lasting performance. Its momentary operation makes it ideal for applications where you need precise control over electrical circuits, such as security systems, vending machines, or industrial automation.
The Bojack BJ-kw4as-10 Micro Limit Switch is an essential component for your DIY projects or professional installations. Its compact size, momentary operation, and SPDT configuration make it a versatile and valuable addition to various automation applications.
Pros and Cons of buying a Bojack BJ-kw4as-10 Micro Limit Switch
1. Description:The Bojack BJ-kw4as-10 is a micro limit switch with a momentary roller lever arm, single pole double throw (SPDT), 1-normally open (NO) and 1-normally closed (NC) contacts, and a current rating of 5A and a voltage rating of 125V.
2. Pros:2.1 Compact Design: The micro size of the switch makes it ideal for space-constrained applications.
2.2 Momentary Switch: It allows a single press to close the circuit and release to open it, which is useful in various control systems.
2.3 SPDT Configuration: The single pole double throw design can handle two separate circuits, making it versatile for various applications.
2.4 Normally Open and Closed Contacts: The NO and NC contacts offer flexibility in designing control systems and can help reduce the number of components required.
3. Cons:3.1 Limited Current Rating: With a current rating of only 5A, the switch may not be suitable for high-current applications.
3.2 Voltage Rating: The 125V voltage rating may limit its suitability for certain high-voltage control systems.
4. Conclusion:The Bojack BJ-kw4as-10 micro limit switch is a versatile and space-saving component for various control applications. Its momentary roller lever arm and SPDT design make it suitable for handling two separate circuits with NO and NC contacts. However, its limited current and voltage ratings restrict its usage in high-power applications.
5. Recommendation:If your application requires a space-saving component with momentary action and the ability to handle two separate circuits, the Bojack BJ-kw4as-10 micro limit switch is an excellent choice. However, if you need a switch with a higher current or voltage rating, consider alternative options that better suit your requirements.
Details:
Contains, 10 PCs micro limit switch's, current voltage : 5a 250v ac, poles spdt type 1no 1nc, action type: momentary; actuator roller lever arm;terminal 3-pin terminals, advantage small distance, short stroke, low power, quick break, package content: switch's 1nc. Specifications, working current: 5a, voltage : 250vac, mode: self reset, type: 1no 1nc, action momentary, actuator roller lever arm, terminal 3-pin terminals, product single pole double throw spdt type, advantage, small distance, short stroke, low power, quick break, switch shall have good finishing and no rust crack or plating failures, application, widely used in various household appliances, electronic equipment, automation communication automotive electronics, instrumentation other fields.
specifications indusswitch:
- brand: Bojack
- mpn: Bj-kw4as-10
- part type: Switch Roller Lever
- switch type: Spdt
- actuator type: Roller Lever Arm
- contact material: Brass, Stainless Steel
- contact type: Normally Open, Normally Closed
- connector type: Plug In
- control method: Touch
- current rating: 5.0
- connectivity protocol: X-10
- circuit type: 2-way
- terminal type: Pins, Terminals
- wattage: 1250.0
- operation mode: On-off
- international protection rating: Ip54
- material: Metal
- mounting type: Panel Mount
- operating voltage: 250.0
- unit count: 1.0
- upc: 762917045313
- package dimensions lxwxh: 2.8x2.01x0.55 Inches
- weight: 0.09 Pounds
offer indusswitch:
- sold #: 14
- in stock #: 4
- started: january 24, 2026
- options: ship-to-home
- availability: in stock
- prices: $12.20–$13.99
- item condition: New
seller indusswitch:
- rating: 99.6%
- city: ithaca, new york
- # reviews: 4336
payments indusswitch:
- credit card: visa
- other
- wallet: paypal
shipping indusswitch:
- type: fixed
- service: standard
- transit: 4-6 days
- class: standard
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Limit Snap Action Switches
returns indusswitch:
- method: money back
- time: 30 days
- policy: returns accepted
- paid by: seller
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