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Siemens 3RH2 Contactor Relay, 24V DC Coil, 10A Contact Current, 2 NO/2 NC Contacts, 600 V DC, 690V AC 3RH2122-1VB40
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Function | Coupling Contactor Relay |
| Length | 45mm |
| Model | 3RH2122-1VB40 |
| Depth | 57.5mm |
| Width | 73mm |
| Mount Type | DIN Rail |
| Series | 3RH2 |
| Maximum Operating Temperature | 60°C |
| Minimum Operating Temperature | -25°C |
| Terminal type | Screw |
| Standards/Approvals | IEC 60947-5-1, IP20, UL/CSA A600 / Q600 |
| Contact Voltage | 600, 690V dc |
| Coil Voltage | 24V dc |
| Normal State Configuration | 2 NO/2 NC |
| Contact Current | 10A |
| Number of Auxiliary Contacts | 2 |
| Auxiliary Contact Configuration | 2 NO/2 NC |
| Operational Current Ie | 10A |
| Control Circuit Voltage Uc | 24V dc |
| Contactor Application | Coupling Relay |
| Pole and Throw Configuration | 4 |
Key Features
- Equipped with 2 normally open and 2 normally closed contacts.
- Operates at control circuit voltage of 24V DC.
- Rated for contact voltages of 600 V DC and 690 V AC.
- Mounts easily on DIN rail for convenient installation.
- Designed for a wide operating temperature range from -25°C to 60°C.
- Features screw-type terminal connections for secure wiring.
- Complies with IEC 60947-5-1, IP20, and UL/CSA A600/Q600 standards.
- High degree of contact stability at low voltage currents ensures reliable performance.
Product Description
Siemens 3RH2122-1VB40 is a high-quality contactor relay designed for reliable automation and control tasks. It incorporates a 24V DC coil and supports a contact current of 10A, making it ideal for coupling relay applications in industrial and electrical environments.
The relay features a configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, ensuring versatile switching capabilities. Its control circuit voltage is 24V DC, and it is capable of handling contact voltages of 600 V DC and 690 V AC. The device is mounted on a standard DIN rail, facilitating straightforward installation and replacement.
With operational temperature suitability ranging from -25°C to 60°C, and compliance with IEC 60947-5-1, IP20 protection class, and UL/CSA A600/Q600 certifications, this relay meets rigorous industrial safety and performance standards.
The compact size of the relay (73mm wide, 45mm long, 57.5mm deep) combined with screw terminal type connections provides secure and compact wiring solutions. It offers high contact stability even at low voltages and currents, enhancing its reliability when used with solid-state circuits and various industrial control systems.
Equipped with 2 NO and 2 NC contacts for flexible switching. 24V DC coil voltage supports common industrial control voltages. Contact ratings of 10A at 600 V DC and 690V AC ensure wide adaptability. Durable DIN rail mounting meets standard industrial installation practices.
Wide operating temperature range from -25°C to 60°C for varied environments. Screw terminal connections create robust and lasting electrical contacts. Meets IEC, UL, and CSA standards for quality and safety assurance. Compact dimensions allow for easy integration into control panels.
Optimized for coupling relay applications in automation and industrial controls. German origin ensures premium manufacturing quality.
This contactor relay is suitable for electrical automation, industrial control systems, HVAC applications, manufacturing equipment, and other commercial or industrial environments requiring reliable relay switching performance. Siemens' 3RH2 series is known for high durability and performance consistency.
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Frequently Asked Questions
The coil voltage of this model is 24V DC.
It has a contact current rating of 10A.
This relay features 2 normally open (NO) and 2 normally closed (NC) contacts.
It can handle contact voltages of up to 600 V DC and 690 V AC.
The dimensions are 73mm wide, 45mm long, and 57.5mm deep.
It operates within a temperature range of -25°C to 60°C.
It is designed for DIN rail mounting, which allows for easy installation.
It features screw-type terminal connections for secure wiring.
This relay complies with IEC 60947-5-1, IP20, and UL/CSA A600/Q600 standards.
It is suitable for electrical automation, industrial control systems, HVAC applications, and manufacturing equipment.
Its function is as a coupling contactor relay, ideal for automation and control tasks.
The Siemens 3RH2122-1VB40 has 2 auxiliary contacts.
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