3RH1122-1AB00 SIEMENS Contactor

Review SIEMENS Auxiliary Contactor

The Siemens 3RH1122-1AB00 contactor is a versatile and reliable electrical component designed for controlling and switching heavy loads in various industrial applications. This contactor is part of Siemens' 3RH series, known for its robust construction and high performance.

The 3RH1122-1AB00 contactor is a normally open (NO) type, which means that it does not conduct current until it is closed by an external signal or mechanism. It is rated for a current of 1100 Amperes at a voltage of 250 Volts, making it suitable for handling heavy electrical loads. The contactor's contacts are made of silver alloy for superior conductivity, ensuring fast and efficient switching.

The contactor's housing is made of die-cast aluminum, providing excellent heat dissipation and protection against environmental factors. The rugged design of the contactor ensures long-lasting operation even in harsh industrial conditions. The contactor also features a built-in coil with a rated voltage of 230V AC and a rated current of 1.5 A, which allows it to be quickly and easily energized by an external control signal.

The 3RH1122-1AB00 contactor is also equipped with a number of safety features, including a thermal overload protection device that helps prevent the contactor from overheating and potentially causing a fire. The contactor also features a mechanical interlock that prevents the contacts from closing until the coil has been fully energized, ensuring safe and reliable operation.

The contactor can be easily mounted in a variety of orientations, thanks to its versatile mounting flanges. It is also compatible with a range of control devices and automation systems, making it a flexible solution for a wide range of industrial applications. Overall, the Siemens 3RH1122-1AB00 contactor is a high-performance and reliable component for controlling and switching heavy electrical loads in industrial settings.

Siemens 3RH1122-1AB00 contactor is a popular choice among electrical engineers and technicians due to its reliability and advanced features. However, like any other electrical component, it has its pros and cons.

1. High Switching Capacity: This contactor can handle a current up to 110 A and a voltage up to 480 V, making it suitable for heavy-duty applications.

2. Robust Design: Siemens is known for its high-quality products, and this contactor is no exception. It is built to last with a robust design that can withstand harsh operating conditions.

3. Easy Installation: The contactor comes with a plug-in terminal block, making it easy to install and connect to other components.

4. Low Contact Resistance: This contactor has a low contact resistance, which results in minimal power loss and improved efficiency.

5. Built-in Overload Protection: The contactor has a built-in overload protection feature that helps prevent damage to the contactor and the electrical system.

1. High Cost: Compared to other contactors in the market, the Siemens 3RH1122-1AB00 contactor is more expensive.

2. Limited Sizes: This contactor is available in a limited range of sizes, which may not be suitable for all applications.

3. Complex Wiring: The contactor has a complex wiring diagram, which can be challenging for beginners to understand and install.

The Siemens 3RH1122-1AB00 contactor is a high-quality component that offers advanced features, reliability, and built-in protection. However, it comes with a higher price tag and may not be suitable for all applications due to its limited sizes and complex wiring.

If you are looking for a heavy-duty contactor for your industrial application and have the budget, the Siemens 3RH1122-1AB00 contactor is a great choice. Its robust design, high switching capacity, and built-in protection make it an excellent investment for the long term. However, if you are on a tight budget or have a smaller application, you may want to consider other options in the market.

Details:

Brand new in box Siemens Sirius 3RH1122-1AB00 contactor.

specifications genpurrelays:

• brand: Siemens
• mpn: 3rh1122-1ab00
• mounting style: Din Rail
• current type: Ac
• type: Power Relay
• coil voltage: 21-30 V
• country of origin: Germany

shipping genpurrelays:

• type: calculated
• carrier: usps
• transit: 5-12 days
• class: standard
• service: usps ground advantage

general genpurrelays:

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

offer genpurrelays:

• in stock #: 5
• prices: $45.00–$179.99
• item condition:
  • New
  • Used
  • New – Open box
• options: ship-to-home
• started: april 11, 2026
• availability: in stock
• sold #: 13

seller genpurrelays:

• # reviews: 1057
• city: spartanburg, south carolina
• rating: 100.0%

payments genpurrelays:

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

returns genpurrelays:

• policy: no returns