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Siemens 3RH2 Contactor Relay with 24V DC Coil, 10A Contact Current, 2 NO/2 NC Contacts, 600V DC, 690V AC 3RH2122-2VB40
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Function | Self Locking |
| Length | 45mm |
| Model | 3RH2122-2VB40 |
| Depth | 69.5mm |
| Width | 73mm |
| Mount Type | DIN Rail |
| Series | 3RH2 |
| Maximum Operating Temperature | 60°C |
| Minimum Operating Temperature | -25°C |
| Terminal type | Spring Loaded |
| 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
- Features 2 normally open (NO) and 2 normally closed (NC) contacts rated for 10A current.
- Operates with contact voltages up to 600V DC and 690V AC.
- Designed for DIN rail mounting ensuring easy installation.
- Equipped with spring loaded terminals for secure electrical connections.
- Functional self-locking mechanism enhances operational reliability.
- Capable of withstanding temperatures from -25°C to 60°C ensuring robust performance.
- Compact dimensions with 73mm width, 45mm length, and 69.5mm depth.
- Certified to multiple standards including IEC 60947-5-1, IEC 61508, UL/CSA A600 / Q600 and more.
Product Description
Siemens 3RH2122-2VB40 is a high-quality contactor relay featuring a 24V DC coil and rated to handle 10A contact current. It is designed for use in industrial automation, electrical control, and coupling relay applications. This relay supports both 600V DC and 690V AC contact voltages, ensuring versatility across a wide range of electrical systems.
The relay comes with a self-locking function and a normal state configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, providing reliable switching performance. Its spring loaded terminals facilitate easy and secure wiring connections, ideal for cabinet installations on DIN rails. The operational temperature range from -25°C to 60°C ensures durability under diverse environmental conditions.
This model is part of Siemens' 3RH2 series known for a climate-proof design and finger-safe contacts. It has compact dimensions measuring 73mm in width, 45mm in length, and 69.5mm in depth. Multiple standards and certifications, including IEC 60947-5-1, IEC 61508, ISO 13849, KC, and UL/CSA A600 / Q600, validate its safety and reliability in industrial setups.
The device’s design allows for expansion by up to four auxiliary contacts through snap-on switch blocks, providing flexibility for complex control circuits. Its application as a coupling relay makes it suitable for various control and automation projects in industrial, manufacturing, and commercial environments.
Features 2 NO and 2 NC contacts rated for 10A current. Coil voltage rating: 24V DC with a self-locking function. Compact DIN rail mount with spring loaded terminals. Wide temperature tolerance from -25°C to 60°C. Complies with international industrial standards and certifications.
Expandable auxiliary contacts for customization. Finger-safe, climate-proof design from Siemens 3RH2 series.
This Siemens contactor relay is ideal for use in electrical, automation, and control gear applications requiring reliable switching with high voltage and current capacity. Its German country of origin assures high manufacturing quality standards. Explore more Contactor Relays and automation components at EnvMart to enhance your industrial and manufacturing systems.
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Frequently Asked Questions
The Siemens 3RH2122-2VB40 contactor relay has a contact current rating of 10A.
This model operates with a coil voltage of 24V DC.
It features a normal state configuration of 2 normally open (NO) and 2 normally closed (NC) contacts.
The relay can handle contact voltages up to 600V DC and 690V AC.
The dimensions of this model are 73mm in width, 45mm in length, and 69.5mm in depth.
It can operate within a temperature range of -25°C to 60°C.
This model is designed for DIN rail mounting, which facilitates easy installation.
It is equipped with spring loaded terminals for secure electrical connections.
It is certified to multiple standards including IEC 60947-5-1, IEC 61508, and UL/CSA A600 / Q600.
Yes, it allows for expansion by up to four auxiliary contacts through snap-on switch blocks.
This model is primarily used as a coupling relay in industrial automation and electrical control applications.
The Siemens 3RH2122-2VB40 is manufactured in Germany.
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