HONEYWELL 879B Mercury Relay Switch

( Brand: Honeywell ), ( Model: 879B ), ( Part Type: Switch )

Review HONEYWELL Mercury Relay Switch

The Honeywell Mercury Relay Switch 879B is a highly reliable and versatile electrical component designed for use in various applications. This switch is a mercury-wetted relay, which means it uses mercury to create a conductive path between two contacts when a magnetic field is applied.

The Honeywell Mercury Relay Switch 879B is a 2-pole, 2-throw (DPDT) device, capable of switching AC or DC currents up to 10 amps at 28 volts AC or DC. It operates at temperatures between -40 C to 85 C, making it suitable for use in a wide range of environmental conditions.

The switch features a compact, cylindrical design with a 0.75-inch diameter and a 1.75-inch length. Its corrosion-resistant, nickel-plated contacts ensure long-lasting performance, even in harsh environments. The switch also includes a built-in fuse holder, which can accommodate 250VAC fuses up to 3 amps, providing an additional layer of protection against overcurrent.

The Honeywell Mercury Relay Switch 879B is designed for easy installation and operation. It features a mounting screw hole on one end and a threaded stud on the other, allowing it to be mounted in various ways. The switch is also available in a variety of voltage options, including 12VDC, 24VAC, and 24VDC, ensuring compatibility with a wide range of systems.

In conclusion, the Honeywell Mercury Relay Switch 879B is a high-performance, reliable, and versatile electrical component that is suitable for use in various applications. Its compact size, corrosion-resistant contacts, built-in fuse holder, and easy installation make it a convenient and cost-effective solution for switching AC or DC currents up to 10 amps.

1. Reliability: Honeywell is a well-known brand that is known for its high-quality products. The Mercury Relay Switch 879B is no exception, providing reliable operation for many years.

2. Durability: The switch is designed to withstand harsh environments, making it a good choice for industrial or commercial applications. It is resistant to dust, moisture, and extreme temperatures.

3. Versatility: The 879B can be used in various applications, including HVAC, refrigeration, and process control. It can handle up to 10 amps of current and can be used with both AC and DC power sources.

4. Easy Installation: The switch is easy to install and can be mounted vertically or horizontally. It also has a clear LED indicator to show its status.

1. Cost: Compared to some other relay switches, the Honeywell Mercury Relay Switch 879B is more expensive. This might be a consideration for those on a tight budget.

2. Limited Functionality: While the 879B is versatile, it does not have advanced features like digital display or remote control. It is a simple switch and may not meet the needs of those looking for more advanced features.

The Honeywell Mercury Relay Switch 879B is a high-quality and reliable switch that is suitable for various applications. Its durability, versatility, and easy installation make it a good choice for many users. However, its cost and limited functionality might be a disadvantage for some. If you are looking for a simple and reliable switch and are willing to pay a premium, the Honeywell Mercury Relay Switch 879B is a good option. If you are looking for a more advanced switch or are on a tight budget, you might want to consider other options.

If you are looking for a reliable and durable relay switch for your industrial or commercial application, the Honeywell Mercury Relay Switch 879B is a good option. It is easy to install and can handle various power sources and current loads. However, if you are looking for a more advanced switch or are on a tight budget, you might want to consider other options. Always ensure that the switch you choose is suitable for your specific application and meets all relevant safety and regulatory requirements.

Details:

This is a new old stock mercury relay, Honeywell 879B dost had been replaced by 841 relay. The opened ones show some age and staining as shown in pictures. This is a vintage relay that in perfect working condition. I have one in unopened box and two that are without boxes.

Never been installed and has internal packaging in place.

specifications pumhva:

• brand: Honeywell
• model: 879b
• part type: Switch

Ratings:

1. 5 star seller!! thank you 08-03-17
2. NEVER A PROBLEM WITH THIS SELLER. ALWAYS GOES GREAT. THANKS 08-03-17
3. Quick efficient and pleasant transaction. Will bjy again if the opport arises. 08-08-17
4. thanks 08-03-17
5. Works great - fantastic price, arrived super fast! 08-04-17

Shipping pumhva:

• type: Calculated
• handling: 3 days

Returns pumhva:

• policy: returns accepted
• type: Money Back
• time: 14 Days
• paid by: Buyer

Payments pumhva:

• PayPal

Offer pumhva:

• bids: 0
• Sold: 0
• best offer: true
• quantity: 3
• Started: August 8, 2017, 7:39 pm

Seller pumhva:

• zipcode: 60046
• city: Lake Villa, Illinois

General pumhva:

• business industrial > mro industrial supply > hvac > hvac parts business industrial > pumps hvac parts
• in stock: Yes
• condition: New

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