AZ420-12-203 AMERICAN ZETTLER Relay

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The American Zettler AZ420-12-203 relay is a versatile and high-performing electromechanical component designed for various industrial and commercial applications. This 12 volt DC coil relay features a compact size of 0.87 inches in length, 1.33 inches in width, and 1.34 inches in height, making it an ideal solution for space-constrained systems.

The AZ420-12-203 relay comes with 203 form C contacts, which are rated for a contact capacity of 10 amps at 125 volts AC or DC. The contacts are silver-plated for enhanced conductivity and durability, ensuring reliable switching performance even under heavy load conditions. This relay is also equipped with a 10 amp, 250 volts AC auxiliary contact, providing additional control functionality.

The coil resistance of this relay is 140 ohms, and it can handle a maximum operating temperature of 104 degrees Fahrenheit (40 degrees Celsius). The AZ420-12-203 can switch up to 25 amps at 277 volts AC or 30 amps at 24 volts DC, making it suitable for applications that require heavy current switching.

The relay's mechanical construction includes a robust die-cast aluminum housing, which offers superior heat dissipation and protection against environmental factors. The contacts are gold-plated for extended life and improved contact resistance. The relay also features a vacuum contact mechanism, which provides a high contact bounce rate and reliable contact operation.

The AZ420-12-203 relay is compatible with a wide range of control circuits and can be used with various automation systems, including PLCs, DCS, and SCADA systems. It is also RoHS compliant, ensuring that it meets the latest environmental regulations for the production and disposal of electronic components.

In summary, the American Zettler AZ420-12-203 relay is a reliable and robust electromechanical component that offers superior switching performance for heavy current applications. Its compact size, versatile contact configuration, and compatibility with various control systems make it a valuable addition to any industrial or commercial automation project.

The American Zettler AZ420-12-203 relay is a commonly used electromechanical switching device. Here are some pros and cons to help you make an informed decision about purchasing this relay:

1. High Switching Capacity: The AZ420-12-203 relay can handle a maximum voltage of 250V AC or 300V DC and a current of up to 20A, making it suitable for handling heavy loads.

2. Compact Size: With dimensions of 3.2 x 2.4 x 1.1 inches, this relay is relatively small and compact, making it an ideal choice for applications where space is a constraint.

3. Robust Construction: Zettler relays are known for their rugged design and long service life. The AZ420-12-203 relay is no exception, with a contact rating of 10,000,000 cycles and a coil rating of 1,000,000 cycles.

4. Versatile Applications: This relay can be used in a wide range of applications, including industrial automation, power systems, HVAC systems, and medical equipment.

5. Easy to Install: The AZ420-12-203 relay comes with clear markings and easy-to-use terminals, making it simple to install and connect to other components.

1. Limited Operating Temperature Range: The relay can operate in temperatures ranging from -20 C to 60 C, which may not be suitable for extreme temperature environments.

2. High Coil Resistance: The coil resistance of the AZ420-12-203 relay is relatively high at 115 ohms, which can result in slower switching times and higher power consumption.

3. No Built-in Overload Protection: This relay does not have built-in overload protection, which means that it may not be suitable for applications where overcurrent protection is essential.

The American Zettler AZ420-12-203 relay offers a high switching capacity, compact size, robust construction, versatile applications, and easy installation. However, it has some limitations, such as a limited operating temperature range, high coil resistance, and lack of built-in overload protection.

If you require a relay with a wide operating temperature range, low coil resistance, or built-in overload protection, you may want to consider other options. However, if you need a reliable and compact relay with a high switching capacity and easy installation, the American Zettler AZ420-12-203 relay is a good choice.

Details:

specifications genpurrelays:

• brand: American Zettler
• mpn: Az420-12-203

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

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• availability: in stock
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• item condition: New – Open box
• started: march 7, 2026
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