1A490O DAYTON Relay

Review DAYTON Dpdt Relay 25a 24vac

The Dayton 1A490-O 25A Relay is a versatile and reliable electrical component designed for various applications. This relay is an electromechanical switch that can handle up to 25 amperes of current and operates on a coil voltage of 120 volts AC.

The Dayton 1A490-O is a single-pole, double-throw (SPDT) relay, meaning it has one input, two normally open (NO) contacts, and one normally closed (NC) contact. The NO contacts are used to switch on or off an external load when the coil is energized. The NC contact remains closed when the coil is not energized and opens when it is, allowing for additional control of the load.

The relay's body is made of a durable and rugged plastic material, making it suitable for use in industrial environments. It also features a clear plastic cover over the coil, allowing for easy visual confirmation of the coil's status. The contacts are gold-plated to ensure a reliable and long-lasting electrical connection.

The Dayton 1A490-O has a contact rating of 30 milliohms, which indicates its low contact resistance. This low contact resistance results in minimal power loss and improved switch response times. The relay also has a maximum operating temperature of 85 degrees Celsius, making it suitable for use in a wide range of environments.

The relay measures 2.2 inches long, 1.6 inches wide, and 1.1 inches tall, making it a compact and space-efficient solution for various switching applications. It also comes with mounting holes, allowing for easy installation using screws or standoffs. The Dayton 1A490-O is a cost-effective and reliable option for those in need of a 25A relay for their electrical project or application.

The Dayton 1A490-O 25A DC Relay is a commonly used electromechanical switching device. Here are some pros and cons that might help in making a decision about purchasing this relay:

1. Cost-effective: This relay is known for its affordability compared to other relays with similar specifications.

2. Rugged construction: The relay is designed to handle heavy currents and voltages, making it suitable for industrial applications.

3. Easy installation: The relay comes with a standard size and configuration, making it easy to install in various applications.

4. Reliable: The Dayton 1A490-O relay has a good reputation for reliability and durability.

5. Versatile: This relay can be used in a variety of applications, including control systems, automation, HVAC, and security systems.

1. Limited contact life: The contact life of this relay is not as long as that of more expensive relays.

2. Audible noise: The relay can produce an audible noise when it switches, which may not be ideal for certain applications.

3. Requires external coil voltage: The relay requires an external coil voltage to operate, which can add to the overall cost and complexity of the system.

In conclusion, the Dayton 1A490-O 25A DC Relay is a cost-effective and reliable option for applications that require heavy current and voltage switching. However, it may not be suitable for applications where long contact life or quiet operation is required. If the application permits, this relay is a good choice for industrial control systems, automation, HVAC, and security systems.

If you are looking for a reliable and affordable option for heavy current and voltage switching, the Dayton 1A490-O 25A DC Relay is a good choice. However, if you require a longer contact life or quiet operation, consider investing in a more expensive relay. Overall, this relay is a versatile and cost-effective solution for many industrial applications.

Details:

Dayton 1A490O dpdt relay 25a 24vac.

specifications genpurrelays:

• brand: Dayton
• mpn: 1a490o
• type: Relay, Dpdt
• current type: Ac
• maximum amperage: 25 A
• contact configuration: Dpdt
• coil voltage: 24 Vac

returns genpurrelays:

• policy: no returns

general genpurrelays:

• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

shipping genpurrelays:

• class: standard
• transit: 3-9 days
• carrier: usps
• type: calculated
• service: usps ground advantage

offer genpurrelays:

• best offers: true
• started: february 4, 2026
• availability: in stock
• options: ship-to-home
• sold #: 9
• price: $25.00
• item condition: New
• in stock #: 1

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• # reviews: 0
• city: toney, alabama
• rating: 0.0%

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