Engineered for reliable power switching, our Single Pole Double Throw (SPDT) Locking Toggle Switch features a positive locking mechanism to prevent accidental operation in high-vibration environments
Engineered for reliable power switching, our Single Pole Double Throw (SPDT) Locking Toggle Switch features a positive locking mechanism to prevent accidental operation in high-vibration environments
| Product Name | Single Pole Double Throw Lock Toggle Switch (102 Series) |
| SKU / Model | SCJ102L3PRS / KN3(A)-102-L3P-RS |
| Category | Toggle Switches / Locking Switches |
| Circuit Type | SPDT (Single Pole Double Throw) |
| Core Feature | Locking Mechanism, Anti-accidental Operation |
| Anti-performance | High Vibration Resistance |
| Rated Spec 1 | 20A 125VAC |
| Rated Spec 2 | 15A 250VAC |
| Max Current | 20 A |
| Max Voltage | 250 VAC |
| Series | 102 Series |
| Smart Function | No |
| Application | Industrial Equipment, Vibration Machinery, Power Distribution Devices |
This 102 series SPDT locking toggle switch adopts professional single pole double throw circuit, which is specially used for AC power switching and circuit conversion. The built-in locking structure can avoid misoperation caused by vibration, which greatly improves the safety of equipment operation. With two sets of high-current specifications up to 20A 125VAC and 15A 250VAC, it can bear medium and high power loads stably. The whole switch is made of solid materials with outstanding anti-vibration ability, adapting to harsh working conditions of vibrating machinery. It adopts pure mechanical design without complex electronic components, so the failure rate is low and daily maintenance is simple. As a standard product of 102 series, it has strong universality and is convenient for mass production and equipment matching. It is a reliable power control accessory widely used in global industrial fields.
This SPDT locking toggle switch is sold and applied in Europe, North America, Southeast Asia and other global regions, focusing on equipment with vibration and anti-misoperation requirements.
| Product name | Single pole double throw lock toggle switch |
| Max. Current | 20 A |
| Max. Voltage | 250 VAC |
| Mechanical Life | KN3(A)-102-L3P-RS |

1. What circuit type and series does this toggle switch belong to?
It is SPDT (Single Pole Double Throw) locking toggle switch, belonging to the 102 series.
2. What are the rated current and voltage parameters?
Two specifications: 20A 125VAC and 15A 250VAC; maximum current 20A, maximum voltage 250VAC.
3. What is the biggest feature of this switch?
It is equipped with a locking mechanism, which can prevent accidental operation, and has excellent anti-vibration performance.
4. What working environment is it suitable for?
It is specially designed for high-vibration working environments such as industrial machinery.
5. Does this switch have smart functions?
No, it is a pure mechanical locking switch without any smart modules.
6. What is the main function of the locking structure?
The locking mechanism fixes the gear position to avoid misoperation caused by vibration or external touch.
7. What kind of circuits is it suitable for?
It is mainly used for AC power circuits and medium-high current power switching systems.
8. Is it convenient for installation and matching?
It is a standard 102 series product, with high universality, easy installation and batch matching.
9. What main equipment is this switch applied to?
Widely used in industrial machinery, vibrating equipment, power distribution devices and electromechanical products worldwide.

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