8501XO40XLV02

The Square D 8501XO40XLV02 126 AC Mechanical Latching Relay is a versatile and robust electrical component designed for various automation and control applications. This relay, manufactured by Square D, a leading name in electrical solutions, boasts a number of impressive features that make it a popular choice among engineers and electricians.

Measuring 4 inches by 0.84 inches by 3.7 inches, this relay is compact in size but offers a large contact rating of 126 Form A contacts. It is designed to operate on AC power with a voltage rating of 120-277V and a current rating of 10A. The mechanical latching type of operation means that the contacts will remain in the last closed position until manually reset, making it suitable for applications where consistent contact closure is essential.

The Square D 8501XO40XLV02 is built with high-quality materials and advanced engineering techniques to ensure long-lasting performance and reliability. It features a robust die-cast aluminum housing that protects the internal components from environmental hazards and provides excellent heat dissipation. The contacts are made from silver-plated copper material for superior conductivity and durability.

This relay is easy to install and integrate into various control systems due to its standard mounting configuration and clear labeling of the contacts. It also comes with a built-in coil overvoltage protection feature, which safeguards the relay against damage from voltage spikes and power surges.

The Square D 8501XO40XLV02 126 AC Mechanical Latching Relay is an excellent choice for a wide range of industrial and commercial applications, including HVAC systems, lighting controls, and machine automation. Its combination of compact size, high contact rating, reliable operation, and easy installation makes it a cost-effective and efficient solution for your electrical control needs.

The Square 8501XO40xLV02 126 AC Mechanical Latching Relay is a type of electrical component used for controlling circuits based on input signals. Here are some potential pros and cons to help you decide if this relay is the right choice for your project:

1. Mechanical Latching: This type of relay retains its state even after the input signal is removed, making it ideal for applications where you want the output to remain on or off until you manually switch it.

2. AC Compatibility: The relay can handle AC power, which is useful for a wide range of applications and is particularly important if you're working with industrial equipment.

3. Durable Construction: The Square 8501XO40xLV02 is built with a robust design, featuring a die-cast aluminum housing and gold-plated contacts that can withstand heavy use and harsh environments.

1. Manual Switching: Since this is a mechanical latching relay, you'll need to physically switch the relay to change its state. This might not be the best choice if you're looking for an automatic solution.

2. Limited Switching Capacity: With a maximum contact rating of 126V AC and 5A, this relay might not be suitable for high-power applications.

3. Larger Size: Compared to other types of relays, the Square 8501XO40xLV02 is relatively large, which could be a concern if you're working in a space-constrained environment.

The Square 8501XO40xLV02 126 AC Mechanical Latching Relay can be a valuable addition to your electrical projects, especially if you're dealing with AC power and require a reliable, manually-controlled switching solution. Its durable construction and retention of state make it suitable for industrial applications and heavy-duty use. However, its limitations in terms of automatic switching, switching capacity, and size should be carefully considered before making a purchase.

If you're looking for an AC-compatible mechanical latching relay with a durable design and the ability to retain its state, the Square 8501XO40xLV02 126 AC Mechanical Latching Relay could be an excellent choice for your project. Weigh the advantages against the disadvantages based on your specific requirements and application, and make an informed decision based on your assessment.

Details:

Square8501xo40xlv02 ac mechanical latching relay, - 4no contacts 120/110vac coil 10a 600v, refurbished / not original packaging. All parts are genuine.

specifications indusswitch:

• brand: Square D
• mpn: 8501xo40xlv02

payments indusswitch:

• other
• wallet: apple-pay
• credit card: mastercard

offer indusswitch:

• options: ship-to-home
• availability: in stock
• prices: $149.99–$410.85
• item condition:
  • New – Open box
  • New
  • Seller refurbished
• in stock #: 5
• started: october 27, 2025
• best offers: true
• sold #: 19

returns indusswitch:

• policy: no returns

general indusswitch:

• category: Business & Industrial > Electrical Equipment Supplies > Switches > Accessories

shipping indusswitch:

• class: standard
• transit: 3-8 days
• service: usps ground advantage
• carrier: usps
• type: calculated

seller indusswitch:

• # reviews: 11
• rating: 100.0%
• city: renton, washington

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