
300-309 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $22.67 | Condition is New, Fastronix SPST ON-Off Heavy Duty AC/DC 20A Toggle Switch with Aircraft Cover, FREE SHIPPING | 99.2% |
![]() | $23.26 | Condition is New, Fastronix SPST ON-Off Heavy Duty AC/DC 20A Toggle Switch with Aircraft Cover, FREE SHIPPING | 100.0% |

The Fastronix 300-309 SPST On-Off Toggle Switch is a versatile and high-performing component designed specifically for use in aviation applications. This switch is rated for both AC and DC power sources, making it a practical solution for various electrical systems in airplanes and helicopters.
This particular model is a Single Pole, Single Throw (SPST) switch, which is the simplest and most commonly used type of toggle switch. It has an industrial-grade design, featuring a robust body made of impact-resistant plastic that can withstand the rigors of aviation environments. The switch is also equipped with a red lever for the on position and a black lever for the off position, making its operational status quickly discernible at a glance.
The Fastronix 300-309 SPST On-Off Toggle Switch is rated for a current capacity of 20 Amperes, catering to the power demands of various aviation electrical systems. This robust switch is designed to meet the demands for dependability and safety that are crucial in the aviation industry. Its construction incorporates high-quality contacts that provide reliable switch action and long-lasting performance. Moreover, it employs a self-cleaning mechanism, ensuring the switch remains free of any potential debris that could compromise its functionality.
Incorporation of the Fastronix 300-309 SPST On-Off Toggle Switch in your aviation project can contribute to the overall reliability and safety of your electrical systems. This component adheres to stringent industry standards, further instilling confidence in its robustness and compatibility in aviation applications. With its superior functionality and durable design, this switch delivers the confidence you need for your next aviation project, ensuring a seamless operational experience.
Fastronix 300-309 is a 20A single-pole, single-throw (SPST) on-off toggle switch designed for use in AC/DC applications, particularly in the aviation industry. Like any other component, it has its advantages and disadvantages.
Advantages:1. Robust Design: The Fastronix 300-309 switch is designed to withstand harsh environments typical in aviation applications such as high altitude, extreme temperatures, and vibration. It is tested and certified to meet the requirements of MIL-SPEC-883.
2. Reliability: Due to its rugged design, this switch is highly reliable, making it a preferred choice for critical applications where switch failure is not an option.
3. Safety: The switch features a snap-action mechanism that ensures positive locking when in the off position, which helps prevent accidental activation. It also has a robust dielectric material that reduces the risk of electrical arcing and minimizes the potential fire hazard.
4. Easy installation: The switch comes in a compact size, making it easy to install in tight spaces. It also has clear markings on the switch lever and housing, making it easy to identify the on and off positions.
Disadvantages:1. Cost: The Fastronix 300-309 is more expensive than standard toggle switches due to its superior build quality, certification, and features designed for harsh environment applications.
2. Limited current capacity: This switch is rated for a maximum current of 20A, which may not be sufficient for high power applications.
3. Limited voltage range: It is designed for specific voltage ranges and should only be used with AC or DC voltages within those limits to avoid potential safety hazards.
Conclusion:The Fastronix 300-309 is an ideal choice for applications in the aviation industry or any other harsh environment where a reliable and robust toggle switch is required. Its advantages, such as rugged design, reliability, safety features, and ease of installation, outweigh the disadvantages, including higher cost and limited current capacity.
Recommendation:If you require a superior toggle switch for aviation or other challenging applications that demand ruggedness, reliability, and safety features, the Fastronix 300-309 is an excellent option. Be sure to consider your specific application requirements, such as current needs, voltage range, and environment, and consult with a professional electrical engineer or a switch manufacturer for any additional recommendations.
Details:
Terminal: spst. Manufacturer: Fastronix solutions. voltage : 12 volts . Country of origin: Taiwan.
When installed, the cover flips up providing access to turn switch on. Connector type: quick connect. To turn the switch off simply flip whole cover down. Lift cover to access the switch.
Brand: Fastronix solutions. Rated to 20a 12vdc, 125vac, 3/4 hp, 125-250 vac. Is discontinued by manufacturer: no. Operation mode: on-off.
Examples: cover your notorious switch to ensure it isn't incidentally activated. Close cover to automatically turn switch off. Material: metal. Fastronix spst on-off heavy duty ac/dc 20a toggle switch with red aircraft safety cover:: this kit includes a heavy duty on/off 20 toggle switch paired with red aircraft safety cover.
Features: heavy duty on/off toggle switch that mounts in a 1/2 hole. The switch is then protected from accidentally being switched on.use for accessories that could cause major problems if switched on.: mounting type: through hole.
specifications indusswitch:
- brand: Fastronix Solutions
- mpn: 300-309
- part type: Switch
- upc: 635414975530
- size: Toggle Switch With Aircraft Cover
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Toggle Switches
returns indusswitch:
- policy: returns accepted
- paid by: buyer
- method: money back
- time: 30 days
offer indusswitch:
- sold #: 22
- prices: $22.67–$23.26
- item condition: New
- availability: in stock
- options: ship-to-home
- in stock #: 2
- started: february 1, 2025
payments indusswitch:
- credit card: discover
- wallet: google-pay
- other
shipping indusswitch:
- service: economy
- type: fixed
- class: economy
- transit: 10-15 days
seller indusswitch:
- rating: 100.0%
- # reviews: 136
- city: us
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- 300-114: AMP SWITCH KIT, Fastronix Solutions

