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Siemens 3RH2 Contactor Relay 48V DC Coil, 10A, 2 NO/2 NC, 690V AC 3RH2122-1BW40
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 45mm |
| Model | 3RH2122-1BW40 |
| 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 |
| Contact Voltage | 690V ac |
| Coil Voltage | 48V dc |
| Normal State Configuration | 2 NO/2 NC |
| Contact Current | 10A |
| Number of Auxiliary Contacts | 4 |
| Auxiliary Contact Configuration | 2 NO/2 NC |
| Operational Current Ie | 10A |
| Control Circuit Voltage Uc | 48V dc |
| Pole and Throw Configuration | 4 |
Key Features
- Features 2 normally open and 2 normally closed contacts for versatile applications.
- Operates at contact voltage of 690V AC, suitable for demanding electrical environments.
- Mounts easily on DIN Rail for quick installation and maintenance.
- Equipped with screw terminal type ensuring secure and stable connections.
- Designed to operate in temperatures between -25°C and 60°C, ensuring durability in harsh conditions.
- Compliant with IEC 60947-5-1 standards for safety and performance assurance.
- Compact dimensions with height 73mm, length 45mm, and depth 57.5mm optimize panel space.
- Includes 4 auxiliary contacts configured as 2 NO and 2 NC to expand circuit control capabilities.
Product Description
Siemens 3RH2122-1BW40 Contactor Relay is a high-quality electrical control device featuring a 48V DC coil and a 10A contact current rating, engineered for robust industrial and automation applications. It is part of the Siemens 3RH2 series, known for climate-proof designs and finger-safe contact stability at low voltages and currents.
This contactor relay incorporates 2 normally open (NO) and 2 normally closed (NC) contacts allowing for flexible circuit configurations, supporting various control schemes. Designed for DIN Rail mounting, it installs securely and efficiently within control panels.
The unit is rated for a contact voltage of 690V AC, suitable for heavy-duty electrical environments, and operates reliably across a wide temperature range from -25°C to 60°C. The screw terminal type ensures secure connections, reducing maintenance concerns.
Additional features include compliance with IEC 60947-5-1 standards, ensuring high safety and operational standards in industrial and electrical automation. The compact form factor with dimensions 73mm width, 45mm length, and 57.5mm depth facilitates space-saving integration in control cabinets.
The relay includes 4 auxiliary contacts configured as 2 NO and 2 NC, expandable up to four contacts through snap-on auxiliary switch blocks. This makes it suitable for applications requiring multiple contact switching in automation, HVAC, manufacturing, water treatment, and industrial control systems.
Versatile 2 NO/2 NC contact configuration expands control options. Robust 690V AC contact voltage and 10A operating current for demanding applications. Durable operation from -25°C to 60°C ensures reliability in harsh environments.
Compact dimensions ideal for optimizing control panel layout. Compliant with international IEC standards for industrial safety. Auxiliary contacts allow easy extension for complex control circuits. Suitable for industrial, manufacturing, automation, and HVAC system integration.
For engineers and system integrators looking for reliable, compact, and versatile Contactor Relays, the Siemens 3RH2122-1BW40 offers the performance and compliance needed for modern electrical control systems. Browse the Electronics & Electricals category at EnvMart for more high-quality Siemens control gear and automation components.
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Frequently Asked Questions
The contact voltage rating of this model is 690V AC, making it suitable for demanding electrical environments.
This unit operates with a coil voltage of 48V DC.
The contact current rating for this contactor relay is 10A.
It includes 4 auxiliary contacts configured as 2 normally open (NO) and 2 normally closed (NC).
The dimensions are 73mm in width, 45mm in length, and 57.5mm in depth.
It operates reliably within a temperature range of -25°C to 60°C.
This contactor relay is designed for DIN Rail mounting, allowing for secure and efficient installation.
It complies with IEC 60947-5-1 standards, ensuring safety and performance in industrial applications.
The normal state configuration includes 2 normally open (NO) and 2 normally closed (NC) contacts.
It features a screw terminal type, ensuring secure and stable connections.
This model is part of the Siemens 3RH2 series, known for its robust design.
It is suitable for various applications including industrial control, automation, HVAC systems, and manufacturing.
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