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Siemens SIRIUS Contactor Relay 24V dc Coil, 10 A Contact Current, 3 NO/1 NC, 600 V dc, 690V ac 3RH2131-1KB40
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Function | Self Locking |
| Length | 45mm |
| Model | 3RH2131-1KB40 |
| Depth | 58mm |
| Width | 45mm |
| Mount Type | DIN Rail |
| Series | SIRIUS |
| Maximum Operating Temperature | 60°C |
| Minimum Operating Temperature | -25°C |
| Terminal type | Screw |
| Standards/Approvals | UL/CSA A600 / Q600, KC, IEC 60947-5-1, EMV |
| Contact Voltage | 600, 690V dc |
| Coil Voltage | 24V dc |
| Normal State Configuration | 3 NO/1 NC |
| Contact Current | 10A |
| Number of Auxiliary Contacts | 1 |
| Auxiliary Contact Configuration | 3 NO/1 NC |
| Operational Current Ie | 10A |
| Control Circuit Voltage Uc | 24V dc |
| Contactor Application | Coupling Relay |
| Pole and Throw Configuration | 4 |
Key Features
- The relay features a self-locking function for reliable operation.
- Comes with 3 normally open (NO) and 1 normally closed (NC) contacts configuration.
- Designed for control voltages of 24V dc with a contact voltage rating of up to 690V ac and 600V dc.
- Equipped with screw terminal type connections for secure wiring.
- Suitable for coupling relay applications and DIN rail mount installation.
- Operates in temperature range of -25°C to 60°C, ensuring climate-proof performance.
- High degree of contact stability at low voltages and currents, compatible with solid-state circuits.
Product Description
Siemens 3RH2131-1KB40 Contactor Relay is a precise industrial automation component featuring a 24V dc coil and a 10 A contact current capacity. It is engineered for reliable switching with 3 normally open and 1 normally closed contacts, suitable for demanding control tasks in electrical systems.
This compact relay mounts conveniently on a DIN rail and incorporates screw terminals for firm and maintenance-friendly wiring connections. The relay's rated contact voltages of 690V ac and 600V dc make it adaptable to various AC/DC control environments.
Engineered to operate reliably between -25°C and 60°C, this Contactor Relay delivers climate-proof performance, compliant with international standards including IEC 60947-5-1, UL/CSA A600 / Q600, and KC certifications.
The device is particularly suited for coupling relay applications in automation, manufacturing, and electrical control systems, providing a high degree of contact stability even at low voltages and currents above 17 V and 1 mA. It supports expansion via snap-on auxiliary switch blocks.
The compact dimensions of 45mm (length) x 45mm (width) x 58mm (depth) allow for efficient panel space utilization in industrial, HVAC, and commercial automation setups. Its robust design and certified safety features make it an ideal choice for engineers requiring dependable relay solutions.
The relay features a self-locking function for consistent operation. Configuration includes 3 NO and 1 NC contacts for versatile switching tasks. 24V dc coil voltage operation ensures efficient control circuit compatibility.
Rated for contact currents up to 10 A at high voltage levels. Screw terminal connections provide solid electrical contacts and ease of installation. Meets international standards IEC 60947-1, EN 60947-1, IEC 60947-4-1, and EN 60947-4-1 ensuring quality and safety.
Compact form factor with a length of 45mm and width of 45mm fits tight spaces. Made in Germany, delivering premium manufacturing quality and durability. Explore the full Siemens SIRIUS product range and trusted industrial automation solutions at EnvMart for reliable and certified electrical control components.
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Frequently Asked Questions
The coil voltage of this model is 24V dc.
It can handle a maximum contact current of 10 A.
This relay features a configuration of 3 normally open (NO) and 1 normally closed (NC) contacts.
The rated contact voltages are up to 690V ac and 600V dc.
It operates reliably between -25°C and 60°C.
This unit is designed for DIN rail mounting.
It is equipped with screw terminal type connections for secure wiring.
It complies with UL/CSA A600 / Q600, KC, and IEC 60947-5-1 standards.
The dimensions are 45mm in length, 45mm in width, and 58mm in depth.
It is particularly suited for coupling relay applications in automation and electrical control systems.
Yes, it features a self-locking function for reliable operation.
Yes, it supports expansion via snap-on auxiliary switch blocks.
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