700-MB400A1S ALLEN BRADLEY Control Relay

Review ALLEN BRADLEY Control Relay Ser 110-120v-ac

The Allen-Bradley 700-MB400A1S Control Relay is a versatile and reliable solution for controlling electrical loads in various applications. This 110-120V AC relay comes in a compact size and offers several features that make it an excellent choice for automation systems.

The 700-MB400A1S Control Relay is a form C, normally open (NO) device. It is designed to handle inrush currents up to 5 times its rated contact capacity and can handle a maximum contact voltage of 277V AC. The relay is constructed with a silver alloy contact material that provides long contact life and low contact resistance, ensuring reliable operation even in heavy-duty applications.

The relay features a built-in coil with a current rating of 0.3 A at 120V AC and comes with a factory-installed, over-temperature coil protector. The protector helps prevent the coil from burning out due to excessive temperature, providing an added layer of safety and reliability.

The 700-MB400A1S Control Relay also comes with a built-in diagnostic indicator, which helps troubleshoot issues with the relay by providing status information. The indicator illuminates when the relay is energized and stays lit when the contact is closed.

The relay is designed with a robust housing that can withstand harsh environments and provides excellent protection against dust and moisture. It meets IP20 rating standards, making it suitable for indoor applications.

The Allen-Bradley 700-MB400A1S Control Relay offers excellent electrical performance and is easy to install and integrate into automation systems. Its compact size and versatile features make it an excellent choice for controlling a wide range of electrical loads in various industries, including manufacturing, automotive, and food and beverage processing. With its reliable operation and long contact life, this control relay is an excellent investment for any automation project.

The Allen-Bradley 700-MB400A1S Control Relay is a commonly used relay in various industrial automation applications due to its versatility and reliability. Here are some pros and cons of buying this relay:

1. Versatile: The MB400A1S relay is designed to be used in various control applications, including motor control, power monitoring, and sequencing.

2. Compact: With a small form factor, this relay can easily be mounted in control panels or other compact spaces.

3. Easy to Install: The relay comes with a clear wiring diagram and is relatively easy to install and configure.

4. Durable: Allen-Bradley relays are known for their durability and ability to withstand harsh industrial environments.

5. Reliable: The MB400A1S relay has a long lifespan and is known for its consistent performance.

1. Cost: Compared to some other relays on the market, the Allen-Bradley MB400A1S can be more expensive.

2. Limited Configurability: While the MB400A1S relay is versatile, it may not offer the same level of configurability as more advanced relays.

3. Requires External Power Supply: The relay requires an external power supply, which can add to the overall cost and complexity of the system.

The Allen-Bradley 700-MB400A1S Control Relay is a reliable and versatile option for various industrial automation applications. While it may be more expensive than some other relays on the market, its durability, ease of installation, and consistent performance make it a worthwhile investment for many applications.

If you are looking for a reliable and versatile control relay for your industrial automation application, the Allen-Bradley 700-MB400A1S is a solid choice. While it may be more expensive than some other options, its durability, ease of installation, and consistent performance make it a worthwhile investment. However, if you require more advanced configurability or a lower cost solution, you may want to consider other options on the market.

Details:

Knife gate valves. Heating and cooling. Valve bodies and manifolds. Model number:700-mb400a1s.

Pressure regulator valves. Circuit breakers.

specifications genpurrelays:

• brand: Allen Bradley
• mpn: 700-mb400a1s
• part type: Control
• reference sku: 1734526
• product condition: New Other

seller genpurrelays:

• city: delta, ohio
• # reviews: 120650
• rating: 100.0%

shipping genpurrelays:

• type: fixed
• transit: 5-5 days
• service: standard, expedited, overnight
• class: standard, expedited, one-day

offer genpurrelays:

• best offers: true
• prices: $50.00–$145.65
• item condition:
  • New – Open box
  • Used
  • Seller refurbished
• in stock #: 5
• started: december 15, 2025
• sold #: 16
• availability: in stock
• options: ship-to-home

payments genpurrelays:

• wallet: paypal
• credit card: diners-club
• other

returns genpurrelays:

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

general genpurrelays:

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