AZ420-V70-4H AMERICAN ZETTLER Relay

Review AMERICAN ZETTLER Relay Used Free Shipping

The American Zettler AZ420-V70-4H is a versatile and robust solid-state relay (SSR) designed for various applications, particularly in industrial and automation settings. This relay is manufactured by Zettler Elektronik, a globally recognized leader in the production of high-quality electronic components.

Measuring 33mm x 22mm x 14mm, this SSR comes with a standard footprint that is compatible with many industrial control systems. It is designed to handle a maximum voltage of 70V DC and a current of up to 4A, making it suitable for managing loads with moderate power requirements.

The American Zettler AZ420-V70-4H is a solid-state device, which means it operates without physical contacts, making it inherently contactless and virtually maintenance-free. It features an opto-isolated design that ensures electrical isolation between the control and load circuits. This helps prevent electrical interference and potential damage to the control circuit.

This relay operates on a coil-less principle, meaning it doesn't require an external coil for operation. Instead, it uses an optocoupler, which converts optical signals into electrical signals, to control the switching of the load. This design not only eliminates the need for a coil but also results in faster switching times and increased reliability.

The AZ420-V70-4H is designed for harsh environments and is suitable for use in applications where temperature extremes, vibration, and electromagnetic interference are common. It can operate in temperatures ranging from -40 C to 85 C and has a high level of protection against electromagnetic interference (EMI) and radio-frequency interference (RFI).

This relay can be controlled using various input signals, including DC voltage, AC voltage, or TTL/CMOS logic levels. It also features a built-in diagnostics function that allows for easy monitoring of its operational status.

In conclusion, the American Zettler AZ420-V70-4H solid-state relay is a reliable and versatile component designed for industrial and automation applications. Its opto-isolated design, contactless operation, and wide operating temperature range make it an excellent choice for applications where electrical isolation, fast switching times, and high reliability are crucial.

The American Zettler AZ420-V70-4H relay is a commonly used electromechanical switching device. Here are some pros and cons that may help you in making a decision to buy this particular relay:

1. High Current Capacity: This relay can handle a maximum current of 20 Amperes and a voltage of 250 Volts, making it suitable for heavy-duty applications.

2. Robust Design: It is built with a contact material that ensures long-lasting performance and reliability.

3. Compact Size: Despite its high current handling capacity, the relay is relatively small in size, making it ideal for use in space-constrained applications.

4. Easy to Use: The relay is easy to install and operate, making it a popular choice among hobbyists and professionals alike.

5. Cost-Effective: Compared to other relays with similar specifications, the AZ420-V70-4H is relatively affordable.

1. Mechanical Contact: The relay uses mechanical contacts to make and break the electrical circuit, which may wear out over time and require maintenance.

2. Limited Switching Frequency: Due to the mechanical nature of the relay, it has a limited switching frequency, making it less suitable for high-speed applications.

3. Power Consumption: The relay consumes a small amount of power even when it is not switching, which may add to the overall power consumption of the system.

In conclusion, the American Zettler AZ420-V70-4H relay is a reliable and cost-effective option for applications that require heavy-duty switching capabilities. Its compact size and ease of use make it a popular choice among hobbyists and professionals. However, its use of mechanical contacts and limited switching frequency may make it less suitable for high-speed or low-maintenance applications.

Based on the information provided, I would recommend the AZ420-V70-4H relay for applications where high current handling capacity and a reliable, robust design are required. However, if low power consumption, high switching frequency, or minimal maintenance are important factors, other types of relays or switching devices may be more suitable.

Details:

The shipping on this item reflects standard ground shipping for the us. I have a nice used American Zettler AZ420-V70-4H relay - for sale. Greenback stock#g103447-51. Cosmetically I would rated a 9 out of 10.

specifications genpurrelays:

• brand: American Zettler
• mpn: Az420-v70-4h

returns genpurrelays:

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

offer genpurrelays:

• in stock #: 5
• started: july 15, 2025
• availability: in stock
• best offers: true
• prices: $17.50–$38.00
• item condition:
  • New – Open box
  • Used
• options: ship-to-home
• sold #: 22

shipping genpurrelays:

• service: usps ground advantage
• transit: 3-7 days
• class: standard
• type: calculated
• carrier: usps

seller genpurrelays:

• # reviews: 8226
• city: morenci, michigan
• rating: 99.4%

general genpurrelays:

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

payments genpurrelays:

• wallet: paypal
• credit card: mastercard
• other