78ARCSX-36 STRUTHERS DUNN Electromechanical Relay Spdt

Review STRUTHERS DUNN Electromechanical Relay 120vac 3.4kohm 15a Spdt

The Struthers-Dunn 78ARC-SX-36 is an electromechanical relay designed for use in 120VAC circuits. This specific model is a single-pole double-throw (SPDT) relay, which means it has one input and two output contacts. The contact rating for this relay is 15 amperes, and the coil resistance is 3.4 kilohms.

The electromechanical design of this relay ensures reliable and robust switching performance. When the coil is energized, a mechanical arm inside the relay closes the desired contact and opens the other. The arm is designed to make a positive connection, ensuring good conductivity and minimal contact bounce.

The 78ARC-SX-36 is rated for a maximum operating temperature of 70 degrees Celsius, making it suitable for use in a wide range of environments. The relay is also ROHS compliant, meaning it contains no restricted substances.

The relay housing is made of a durable and corrosion-resistant material, ensuring long-term reliability and protection against environmental factors. The contacts are silver-plated to reduce resistance and ensure good contact life.

The Struthers-Dunn 78ARC-SX-36 is a versatile and reliable solution for a wide range of switching applications, including industrial automation, HVAC systems, and power distribution. Its 120VAC voltage rating and 15A current handling capacity make it suitable for use in a variety of commercial and industrial applications.

Overall, the Struthers-Dunn 78ARC-SX-36 is a high-quality electromechanical relay that offers reliable, robust, and long-lasting performance in a wide range of applications. Its SPDT design, 120VAC voltage rating, and 15A current handling capacity make it a versatile and valuable addition to any industrial or commercial automation system.

The Struthers-Dunn 78ARC-SX-36 electromechanical relay is a 120V AC, SPDT (Single Pole Double Throw) device with a contact rating of 15A and a coil resistance of 3.4kOhm. Here are some potential pros and cons that could help you make an informed decision about purchasing this relay:

1. Reliability: Electromechanical relays are known for their reliability and long service life, making them suitable for applications where contact stability and durability are crucial.

2. Rugged Construction: The Struthers-Dunn 78ARC-SX-36 relay has a robust and compact design, making it suitable for harsh industrial environments.

3. Versatility: This relay is suitable for a wide range of applications due to its 120V AC voltage rating and 15A current handling capacity.

4. Easy to Use: Electromechanical relays are straightforward to install and operate, requiring minimal configuration or setup.

1. Size and Weight: Compared to solid-state relays, electromechanical relays are larger and heavier due to their moving parts.

2. Power Consumption: Electromechanical relays consume more power than solid-state relays, as they require energy to mechanically switch contacts.

3. Contact Bounce: Electromechanical relays may produce contact bounce, which can cause noise or interference in some applications.

4. Slow Response Time: The response time of electromechanical relays is slower than that of solid-state relays, which could be a concern for some applications.

In conclusion, the Struthers-Dunn 78ARC-SX-36 electromechanical relay offers reliability, ruggedness, and versatility, making it a suitable choice for various industrial applications. However, it has some drawbacks, such as size and weight, power consumption, contact bounce, and slower response time, which may be a concern for some users. Ultimately, the decision to purchase this relay depends on the specific requirements of your application and your trade-offs between the pros and cons.

If you need a relay that requires fast response times, minimal power consumption, or a compact size, then a solid-state relay may be a better choice. However, if you need a reliable and rugged relay with a wide operating voltage range and high current handling capacity, then the Struthers-Dunn 78ARC-SX-36 electromechanical relay could be an excellent option for your application.

Details:

Struthers Dunn 78ARCSX-36 electromechanical relay 120vac 3.4 kohm 15a spdt, lot 41828 b72, new old stock.

specifications genpurrelays:

• brand: Struthers Dunn
• mpn: 78arcsx-36

offer genpurrelays:

• price: $14.95
• item condition: New – Open box
• started: february 10, 2026
• sold #: 12
• availability: in stock
• options: ship-to-home
• in stock #: 1

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

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