
ASW21L20-304 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $32.00 | Condition is Used, IDEC ASW21L20-304 Black 2-Position Maintained Selector Switch 22mm, 2NO, FREE SHIPPING | ![]() |
![]() | $35.00 | Condition is Used, IDEC ASW21L20-304 Black 2-Position Maintained Selector Switch 22mm, 2NO, FREE SHIPPING | ![]() |

The idec ASW21L20-304 is a 2-position maintained selector switch with a modern design and compact dimensions. Measuring 22mm in diameter, this switch is well-suited for various applications where the selection of two different functions is required.
This switch features a maintained selector function, which means that the position selected remains in place even when power is disconnected. The two NO (Normally Open) contacts provide reliable switching action for the connected circuits.
The idec ASW21L20-304 is constructed from high-quality materials, ensuring durability and longevity. The switch lever is designed with a smooth operating action for easy and precise selection between the two positions. Its robust design makes it suitable for industrial and commercial use, even in harsh environments.
The switch comes with a sealing gasket, making it IP65 rated, which provides protection against water jets from all directions and against dust. This feature makes it an excellent choice for applications where environmental conditions may be challenging.
The idec ASW21L20-304 is easy to install, with clear markings on the switch lever for easy identification of each position. The terminal block is accessible from the front, making wiring connections simple and efficient.
In conclusion, the idec ASW21L20-304 is a versatile and reliable 2-position maintained selector switch with a compact design, smooth operating action, and robust construction. Its IP65 rating and easy installation make it an excellent choice for various industrial and commercial applications where the selection of two different functions is necessary.
The IDEC AW21L20-304 2-position maintained selector switch is a commonly used electrical component for controlling power to various devices or circuits based on operator selection. Here are some pros and cons that may help you decide whether to purchase this specific model:
Pros:1. Robust Construction: This switch is built to withstand harsh industrial environments with its IP67 rating, making it suitable for use in wet and dusty locations. It is also suitable for applications in the temperature range of -40 C to 80 C.
2. Versatile: The 2-position maintained selector switch can be used in a wide range of applications, including machine tools, robots, and automation systems. It can be used to control power to motors, solenoids, or other equipment.
3. Easy Installation: The switch has a compact size of 22mm and a 35mm mounting center, which makes it easy to install in most applications. It also has a clear labeling area for easy identification of the switch functions.
4. Maintained Contact: The maintained contact feature ensures that the switch remains in the last position selected, even when power is lost. This feature is particularly useful in applications where quick response time is critical.
5. Safety: The switch has a locking mechanism that prevents accidental switching, ensuring safety in the workplace.
Cons:1. Limited Number of Contacts: The switch has a maximum of two contacts, which may not be sufficient for complex applications that require more contacts.
2. Cost: Compared to other models with similar features, the IDEC AW21L20-304 switch may be more expensive.
3. Requires Wiring: This switch requires wiring connections to be made on-site, which may add to the installation time and cost.
In conclusion, the IDEC AW21L20-304 2-position maintained selector switch is a robust and versatile electrical component that is suitable for use in harsh industrial environments. Its easy installation, maintained contact feature, and safety locking mechanism make it an attractive option for controlling power in various applications. However, its limited number of contacts and higher cost compared to other models may be disadvantages for some users.
Based on the above analysis, I would recommend this switch for applications where a compact, robust, and easy-to-install maintained selector switch is required, and where the number of contacts is not a limiting factor. However, if you require a switch with more contacts or a lower cost, you may want to consider other models in the market.
Details:
This is a surplus item. Address, next day automation, 9472 hemlock lane n. Contact rating: 600vac/dc 10a. Office hours if you do not have an account no worries.
Contact configuration: 2no. Termination: screw terminals. Specifications: model #: ASW21L20-304.
specifications indusswitch:
- brand: Idec
- mpn: Asw21l20-304
- part type: Switch
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Selector Switches
shipping indusswitch:
- carrier: usps, ups
- transit: 3-5 days
- service: usps first class, usps priority mail padded flat rate envelope, ups next day air
- type: calculated
- class: standard, expedited, one-day
returns indusswitch:
- policy: returns accepted
- time: 30 days
- method: money back
- paid by: seller
offer indusswitch:
- best offers: true
- availability: in stock
- prices: $32.00–$35.00
- item condition: Used
- started: august 8, 2025
- in stock #: 2
- sold #: 21
- options: ship-to-home
seller indusswitch:
- rating: 100.0%
- # reviews: 39686
- city: osseo, minnesota
payments indusswitch:
- credit card: discover
- cash
- wallet: apple-pay
- other
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