R4A021D ITT Relay Coil Single Contact

Review ITT Relay Model 24vac Coil Single N.o. Contact Tested

The ITT R4A021D is a single-pole, normally open (NO) electromechanical relay coil designed for various automotive and industrial applications. This component is engineered to provide reliable switching functionality in response to an applied electric current.

The coil is constructed with a copper wire windings that offers excellent electrical conductivity, ensuring quick response times and minimal power dissipation. The magnetic field generated by the coil is strong enough to actuate the relay contacts, making it suitable for applications requiring frequent switching operations.

The dimensions of the ITT R4A021D coil are compact, measuring at approximately 1.3 inches (32.5 mm) in length, 0.6 inches (15.2 mm) in width, and 0.2 inches (4.9 mm) in height. This size makes it an ideal choice for applications where space is a concern.

The terminal configuration of the coil consists of two solder cup terminals, providing a simple and secure method for making electrical connections. The terminals are designed to withstand the rigors of automotive and industrial environments, ensuring reliable connection and long-term durability.

The ITT R4A021D is designed to operate in a wide temperature range, from -40 F to 185 F (-40 C to 85 C). This temperature range makes it suitable for use in various environments, including both extreme cold and hot conditions.

The coil is also ROHS compliant, ensuring that it meets the strictest environmental regulations for the use of hazardous materials. This makes it an excellent choice for applications where environmental sustainability is a priority.

The ITT R4A021D is a versatile and dependable electromechanical relay coil, offering excellent performance and reliability for a wide range of applications. Its compact size, robust construction, and wide operating temperature range make it a popular choice for automotive and industrial applications where quick and reliable switching is essential.

Pros and Cons of Buying an ITT R4A021D Relay Coil: A Single NO Contact Perspective

The ITT R4A021D is a single NO contact relay coil. NO stands for Normally Open, meaning the contacts are open when the coil is not energized but close when it is. This component is widely used in various electrical systems for switching or controlling circuits. In this analysis, we will discuss the advantages and disadvantages of purchasing a ITT R4A021D relay coil.

1. Reliability: The ITT R4A021D relay coil is known for its high reliability due to its robust design and durable construction materials. It can handle heavy currents and voltage levels, making it suitable for industrial applications.

2. Versatility: This relay coil is compatible with a wide range of electrical systems and can be used in various applications, such as automation, HVAC, and power distribution.

3. Efficient: The ITT R4A021D relay coil has a low power consumption, which can help save energy and reduce operating costs in the long run.

4. Quick Response Time: This relay coil has a fast response time, which means it can switch contacts quickly, making it suitable for applications where quick switching is essential.

1. Cost: The ITT R4A021D relay coil may have a higher initial cost compared to other options in the market due to its superior quality and robust design.

2. Size: This relay coil may be larger than some other options, which could make it less suitable for applications where space is limited.

3. Complexity: Installing and configuring this relay coil may require some technical expertise, which could add to the overall cost and complexity of the project.

The ITT R4A021D relay coil is a reliable and versatile component suitable for various electrical applications that require quick switching and heavy current handling. Its advantages include high reliability, compatibility with various systems, efficient power consumption, and fast response time. However, its disadvantages include a higher initial cost, larger size, and the need for some technical expertise for installation and configuration.

If you are looking for a high-quality, reliable, and versatile relay coil for industrial applications, the ITT R4A021D is an excellent option. Although it may have a higher initial cost and require some technical expertise for installation, its advantages far outweigh its disadvantages. We recommend considering this component for applications where quick switching, heavy current handling, and compatibility with various electrical systems are essential.

Details:

Itt relay, model R4A021D, 24vac coil, single n.o. Contact, tested, coil requires 6va to operate 250ma 24vac.

specifications genpurrelays:

• brand: Itt
• mpn: R4a021d
• current type: Ac
• type: Power Relay
• maximum amperage: 10a
• coil voltage: 24vac
• application: Heating/cooling

seller genpurrelays:

• # reviews: 1182
• city: burlington, north carolina
• rating: 97.4%

payments genpurrelays:

• other
• wallet: google-pay
• credit card: mastercard

returns genpurrelays:

• time: 30 days
• policy: returns accepted
• paid by: buyer
• method: money back

offer genpurrelays:

• in stock #: 1
• options: ship-to-home
• started: april 16, 2025
• availability: in stock
• price: $31.50
• item condition: Used
• sold #: 20

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• type: calculated
• service: usps ground advantage
• transit: 3-8 days
• carrier: usps
• class: standard

general genpurrelays:

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