3RH1122-1BW40 SIEMENS Contactor Relay Amp

Review SIEMENS Contactor Relay 240vac Amp

The Siemens 3RH1122-1BW40 Contactors and Relays is a versatile and reliable electrical component designed for controlling heavy loads in various industrial applications. This contactor model, specifically, is a 240Vac, 10 Amp device, suitable for handling single-phase AC power circuits.

The contactor component of this unit is a mechanically operated switch that can be manually or electrically operated to open or close electrical circuits. It features a silver contact material for improved conductivity and longer contact life. The contactor is also equipped with a coil that can be energized to operate the contactor. This coil has a rated voltage of 240Vac and a rated current of 1.5 Amps.

The relay part of this device is responsible for electrically signaling the contactor to open or close the circuit based on input conditions. It includes a set of normally open (NO) and normally closed (NC) contacts that can be used to switch other electrical loads. The contacts have a rating of 10 Amps at 240Vac, ensuring they can handle a decent amount of current and voltage.

This contactor relay comes housed in a robust, die-cast aluminum enclosure that offers protection against environmental conditions. Its dimensions are 109.2mm (L) x 58.3mm (W) x 63.5mm (H), making it a compact yet effective solution for controlling larger loads.

Additionally, the Siemens 3RH1122-1BW40 Contactors and Relays is designed with safety in mind. It includes features like overload protection, short-circuit protection, and thermal protection to help prevent damages and ensure reliable operation.

This contactor relay can be easily mounted on a DIN rail or directly onto a control panel using the provided mounting screws. It is also suitable for use in industrial environments with a temperature range of -10 C to 40 C.

Overall, the Siemens 3RH1122-1BW40 Contactors and Relays offers a robust, reliable, and versatile solution for controlling heavy loads in various industrial applications. Its 240Vac, 10 Amp rating makes it suitable for handling single-phase AC power circuits, while its compact size and rugged design make it a practical choice for numerous industrial applications.

Siemens 3RH1122-1BW40 Contact Relay (240VAC, 10 Amp): A Comprehensive Analysis

The Siemens 3RH1122-1BW40 contactor relay is a 240VAC, 10 amp device designed for controlling electrical circuits. This analysis aims to provide a balanced view of its advantages and disadvantages to help potential buyers make informed decisions.

1. Reputable Brand: Siemens is a globally recognized brand with a strong reputation for producing high-quality electrical components. This contactor relay is no exception, ensuring reliability and durability.

2. Versatile Application: Suitable for various automation applications, including lighting controls, HVAC systems, and machinery protection.

3. High Load Capacity: With a 10 amp current rating, this contactor can handle considerably higher loads than standard household appliances.

4. Compact Design: The contactor's compact design makes it suitable for installation in confined spaces.

5. Robust Construction: The device features a rugged design, ensuring it can withstand harsh operating conditions in industrial environments.

1. Cost: Compared to lesser-known brands, Siemens contactors can be more expensive.

2. Complex Installation: The device may require professional installation, especially for complex automation systems.

3. Limited Compatibility: This contactor may not be compatible with all control systems, so it's crucial to check compatibility before purchasing.

4. Limited Protection: Although the device is rugged, it may not offer extensive overload or short-circuit protection.

The Siemens 3RH1122-1BW40 contactor relay is an excellent choice for those seeking a reliable, versatile, and robust solution for controlling electrical circuits. Its high load capacity, compact design, and rugged construction make it suitable for various industrial applications. However, its cost and complex installation may deter some buyers. Additionally, its limited compatibility and protection features should be carefully considered before making a purchase.

If you require a high-performance, reliable, and versatile contactor for industrial applications, the Siemens 3RH1122-1BW40 contactor relay is an excellent choice. However, consider the cost and compatibility with your existing control systems before making a purchase. If budget is a concern, you may want to explore options from lesser-known brands.

Details:

10 amp, 240 vac coil rating shown on the unit label, 2 no nc contact configuration, screw terminal, s00 size, with din rail mounting form factor.: brand: Siemens, manufacturer part #: 3RH1122-1BW40, condition: brand new, unused, and in original packaging. This is a new Siemens 3RH1122-1BW40 contactor relay 240vac 10 amp. It is designed for control and switching applications in industrial electrical panels din rail mounted systems.

Feel free to make an offer. Siemens 3RH1122-1BW40 contactor relay 240vac 10 amp.

specifications genpurrelays:

• brand: Siemens
• mpn: 3rh1122-1bw40
• type: Contactor Relay
• maximum amperage: 10 A
• coil voltage: 48 V Dc
• mounting style: Din Rail
• contact configuration: 2 No 2 Nc
• unit type: Piece
• country of origin: United States

general genpurrelays:

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

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• type: calculated
• carrier: ups

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• policy: returns accepted
• time: 60 days
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• availability: in stock
• in stock #: 5
• options: ship-to-home
• started: may 27, 2026
• sold #: 13
• prices: $80.00–$180.00
• item condition:
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  • New – Open box
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