
A421AEC-02C Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $160.00 | Condition is New, JOHNSON CONTROLS A421AEC-02C Temp Control,Heat and Cool,-40-212F 35LY84, FREE SHIPPING | 97.9% |
![]() | $183.99 | Condition is New, Johnson Controls A421aec-02C Temperature Control, Close On Rise, Open On Rise,, FREE SHIPPING | 99.8% |
![]() | $193.31 | Top Pick! Condition is New, JOHNSON CONTROLS A421AEC-02C Temp Control,Heat and Cool,-40-212F 35LY84, FREE SHIPPING | ![]() |
![]() | $195.16 | Condition is New, Johnson Controls A421AEC-02C Electronic Temp Control, SPDT, 1 Switch, FREE SHIPPING | 98.6% |
![]() | $208.00 | Condition is New, JOHNSON CONTROLS A421AEC-02C / A421AEC02C (BRAND NEW), shipping cost = $12.90 | 97.8% |
![]() | $248.00 | Condition is New, A421AEC-02C Johnson Controls Controllers, A421 Series ELECTRONIC SINGLE STAGE;, FREE SHIPPING | 99.6% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $189.40 | Condition is Unspecified, Johnson Controls A421AEC-02C Electronic Temp Control, SPDT, 1 Switch, FREE SHIPPING | 97.8% |

The Johnson A421AEC-02C Control SPDT Switch is a high-quality, 6.5-foot long, single-pole double-throw (SPDT) electrical switch designed for various control applications. This switch is manufactured by Johnson Controls, a leading name in the HVAC industry, known for its reliable and efficient products.
The Johnson A421AEC-02C switch comes with six terminals, allowing for versatile wiring configurations. The switch has a white body, making it aesthetically pleasing for use in residential or commercial settings. The 6.5-foot long wire leads are pre-wired, making installation fast and straightforward.
This SPDT switch is rated for a maximum voltage of 300 volts and a maximum current of 10 amps. It is suitable for use with low-voltage systems and can be used to control various loads such as lights, fans, and appliances. The switch is designed for heavy-duty use and can handle frequent switching without the risk of failure.
The Johnson A421AEC-02C Control SPDT Switch features a smooth, easy-to-operate lever that can be used to switch between two different circuits. The switch is also equipped with a clear, white on/off indicator light, making it easy to identify the status of the switch at a glance.
This switch is designed to meet or exceed industry standards for safety and reliability. It is UL listed, ensuring that it has been tested and meets the rigorous safety requirements set by Underwriters Laboratories. It is also RoHS compliant, meaning it does not contain any hazardous materials such as lead, mercury, cadmium, or chromium.
The Johnson A421AEC-02C Control SPDT Switch is a versatile and reliable solution for any application where a single-pole double-throw switch is required. Its long wire leads, heavy-duty construction, and clear indicator light make it a great choice for both residential and commercial installations. Whether you're looking to control lights, fans, or other loads, this switch is sure to meet your needs.
The Johnson A421AEC-02C Control SPDT Switch 6.5 ft is a 6.5-foot single-pole double-throw (SPDT) switch. SPDT switches have one input and two outputs, making them suitable for simple on-off applications where you want to control two separate devices with a single switch. Here are some pros and cons of buying this switch:
Pros:1. Reliable: Johnson is a well-known brand in the electrical industry, and this switch is built to last with high-quality materials.
2. Versatile: This switch can be used in various applications, including lighting, HVAC systems, and appliances.
3. Long cable length: The 6.5-foot cable length provides enough slack for most installations, reducing the need for extensions.
4. Easy to install: The switch is designed for easy wiring, making installation a straightforward process.
5. Affordable: Compared to other brands, Johnson offers competitive pricing for their switches.
Cons:1. Not suitable for heavy-duty applications: This switch is not designed for high current loads and is not recommended for heavy-duty applications.
2. Limited color options: This switch comes in a standard white finish, which may not be suitable for all decor styles.
3. No indicator lights: This switch does not have any built-in indicator lights, making it less suitable for applications where visual confirmation of the switch position is important.
In conclusion, the Johnson A421AEC-02C Control SPDT Switch 6.5 ft is a reliable and affordable option for simple on-off applications that require a long cable length. However, it may not be suitable for heavy-duty applications or those requiring visual confirmation of the switch position.
Recommendation: If you're looking for a reliable and affordable SPDT switch for simple on-off applications with a long cable length, the Johnson A421AEC-02C Control SPDT Switch 6.5 ft is a great choice. However, if you require a heavy-duty switch or one with indicator lights, you may want to consider other options from brands specializing in heavy-duty switches or those offering switches with built-in indicators.
Details:
#847 in temperature controllers. 2m: dimensions: 4.2 x 4.3 11.1 inches; 1 pounds. Item model number: A421AEC-02C. Johnson controls A421AEC-02C electronic temp control, spdt, 1 switch, 6.5 ft.
Adjustable on and off temperature set points enable easy to up cooling or heating. An led indicates the output relays on/off status. Easy-to-read, bright, adjustable backbit LCD screen displays the temperature. Basic and advanced programming menus allow you to easily set up your control application on the LCD using a simple three-button touch pad interface.
specifications indusswitch:
- brand: Johnson Controls
- mpn: A421aec-02c
- part type: Control Switch
- gtin: 10662011536687
shipping indusswitch:
- type: fixed
- transit: 2-6 days
- service: expedited
- class: expedited
payments indusswitch:
- credit card: mastercard
- wallet: apple-pay
- other
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
returns indusswitch:
- time: 60 days
- method: money back
- policy: returns accepted
- paid by: seller
seller indusswitch:
- city: san bernardino, ca
- # reviews: 743
- rating: 99.1%
offer indusswitch:
- in stock #: 5
- started: october 15, 2025
- sold #: 17
- prices: $160.00–$248.00
- item condition:
- New
- Unspecified
- availability: in stock
- options: ship-to-home
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