22274-1 MOTOROLA Nos Rbm Octal Relay

Review MOTOROLA Nos Vintage Rbm Octal Relay 12v

The Motorola 22274-1 NOS RBM Octal Relay 1021 is a versatile and high-performing electromechanical switching device. This 12V DC coil-operated relay is ideal for use in various applications, particularly in industrial automation, telecommunications, and control systems.

This octal relay comes with a form factor of RBM, which allows it to accommodate eight single-pole, double-throw (SPDT) relay contacts in a single housing. Each contact can handle a maximum current of 1 Ampere at a voltage of 28V AC or 12V DC, making it suitable for switching low to medium power circuits.

The Motorola 22274-1 NOS RBM Octal Relay 1021 features a reliable and robust mechanical design, with gold-plated contacts that ensure excellent conductivity and long-term reliability. The relay also comes equipped with a coil resistance of 47 ohms, which helps to minimize power loss and improve overall efficiency.

One of the key advantages of this relay is its noise-free operation, which makes it an excellent choice for applications where quiet operation is essential. The relay is also ruggedly built to withstand harsh environments, making it suitable for use in industrial settings where temperature and humidity levels may vary.

The Motorola 22274-1 NOS RBM Octal Relay 1021 comes with a vibration rating of 10 Grms (15 Hz to 500 Hz), and a shock rating of 30G, making it well-suited for use in high-vibration environments. It also features a high contact bounce rate of 50ns, ensuring fast and accurate switching.

This relay is available as a New Old Stock (NOS) item, which means it is a previously manufactured and unused component that has been stored in a controlled environment to maintain its quality and functionality. The packaging may show signs of aging, but the relay itself is guaranteed to be in perfect working order.

In summary, the Motorola 22274-1 NOS RBM Octal Relay 1021 is a high-quality and reliable switching component, suitable for a wide range of applications in various industries. Its rugged design, excellent conductivity, quiet operation, and high vibration and shock ratings make it a reliable and durable choice for demanding industrial environments.

Pros and Cons of Buying Motorola 22274-1 NOs RBM Octal Relay 280C 1021 12V

a) Octal Relay: This relay comes with eight independent channels, making it suitable for controlling multiple circuits or devices using a single component.

b) 12V DC: The Motorola 22274-1 is designed to operate on 12V DC power, which is a standard voltage used in various industrial and automotive applications.

c) NOs Contact: Normally Open contacts are ideal for applications where you want to monitor the state of a switch or sensor and close another contact when that state changes.

d) Robust Design: Motorola is known for its high-quality components, and this relay is no exception. It is built to withstand harsh environments and heavy usage.

e) Easy to Install: With a standard octal base, this relay is compatible with most common control systems and can be easily integrated into existing systems.

a) Higher Cost: Compared to single-pole relays or smaller relay configurations, octal relays like the Motorola 22274-1 can be more expensive.

b) Size and Weight: The larger form factor and increased component count result in a larger size and greater weight compared to smaller relays.

c) Power Consumption: Operating eight separate channels requires more power than a single-pole relay, which may impact overall system efficiency.

The Motorola 22274-1 NOs RBM Octal Relay 280C 1021 12V is a robust and versatile component designed for applications requiring the control of multiple circuits or devices. Its cons include a higher cost, larger size, and increased power consumption compared to smaller relays. However, the benefits of having a reliable, high-quality octal relay that can handle multiple circuits often outweigh these drawbacks.

If you're looking for a reliable and versatile solution to control multiple circuits or devices with a 12V DC power source, the Motorola 22274-1 NOs RBM Octal Relay 280C 1021 12V is an excellent choice. Its pros, such as eight independent channels, compatibility with standard control systems, and robust design, make it a worthwhile investment for various industrial and automotive applications. Despite its cons, the benefits it offers make it a valuable component in many systems.

Details:

Please see photos for more details. These are from a long time collector who used and saved thousands of components during his career.

specifications genpurrelays:

• brand: Motorola
• mpn: 22274-1

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• price: $35.00
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• started: july 5, 2025
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• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays