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Siemens Contactor Relay 10 A 110V DC, 2 NO/1 NC, 600 V DC, 690 V AC 3RH2122-2KF40-0LA0
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Function | Straight |
| Length | 45mm |
| Model | 3RH2122-2KF40-0LA0 |
| Depth | 69.5mm |
| Width | 117mm |
| Mount Type | DIN Rail |
| Series | 3RH2 |
| Maximum Operating Temperature | 70°C |
| Minimum Operating Temperature | -40°C |
| Terminal type | Spring Loaded |
| Contact Voltage | 600, 690V dc |
| Normal State Configuration | 2 NO/1 NC |
| Contact Current | 10A |
| Number of Auxiliary Contacts | 1 |
| Auxiliary Contact Configuration | 2 NO/1 NC |
| Operational Current Ie | 10A |
| Control Circuit Voltage Uc | 110V dc |
| Contactor Application | Railway |
| Pole and Throw Configuration | 3P |
Key Features
- Supports contact voltage of 600 V DC and 690 V AC for versatile industrial use.
- Equipped with 2 normally open (NO) and 1 normally closed (NC) contacts configuration.
- Mounts easily on DIN rail ensuring straightforward installation.
- Spring loaded terminals improve connection reliability and ease of wiring.
- Operates reliably within the temperature range of -40°C to 70°C.
- Compact dimensions with 117mm width, 69.5mm depth, and 45mm length optimize space utilization.
- Conforms to multiple international standards including UL/CSA, IEC, and ISO ensuring safety and performance.
Product Description
Siemens 3RH2122-2KF40-0LA0 is a high-performance Contactor Relay in the 3RH2 series designed for industrial and railway applications requiring robust and reliable control switching. It supports a contact current of 10 A and a control circuit voltage of 110 V DC, operating efficiently within harsh environmental conditions from -40°C to 70°C.
The relay features 2 normally open (NO) and 1 normally closed (NC) auxiliary contacts, allowing flexible configuration for control circuits. The device mounts on standard DIN rails with spring loaded terminals that facilitate secure and easy wiring. Its compact size (117mm width, 69.5mm depth, 45mm length) makes it suitable for applications with space constraints while delivering a high degree of contact stability, even at low voltages and currents.
This component adheres to international standards such as UL/CSA, IEC 60947 series, KC, ISO 13849, and IEC 61508, underpinning its safety and reliability credentials. Additionally, the relay is climate-proof and finger-safe to enhance operator safety during installation and maintenance.
The 3RH2 series also offers the capability to expand contact configurations using snap-on auxiliary switch blocks, improving system adaptability. It is engineered for use with solid-state circuits operating at currents as low as 1 mA at voltages ≥ 17 V.
Typical applications include railway systems, industrial automation, and control gear where precise and dependable electrical switching is critical. Supports contact voltage up to 600 V DC and 690 V AC for mixed voltage environments.
Compact rail mounting design enables efficient control panel layouts. Wide operating temperature range ensures robust function in diverse climates. Complies with multiple international safety and performance standards. Auxiliary contact configuration 2 NO/1 NC for versatile control logic implementation.
Spring loaded terminal design facilitates reliable and vibration-resistant connections. Consider exploring our Electronics & Electricals category for other automation and control gear products by Siemens and similar global brands on EnvMart.
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Frequently Asked Questions
It supports a contact voltage of up to 600 V DC and 690 V AC, making it suitable for versatile industrial applications.
The control circuit voltage for this relay is 110 V DC.
This model has a contact current rating of 10 A.
It operates reliably within a temperature range of -40°C to 70°C.
This relay mounts easily on standard DIN rails, facilitating straightforward installation.
It features 2 normally open (NO) and 1 normally closed (NC) auxiliary contacts configuration.
The dimensions are 117 mm in width, 69.5 mm in depth, and 45 mm in length.
It is equipped with spring loaded terminals, which enhance connection reliability and ease of wiring.
It conforms to multiple international standards including UL/CSA, IEC 60947 series, and ISO 13849.
Typical applications include railway systems, industrial automation, and control gear where precise electrical switching is critical.
Yes, the relay allows for expansion of contact configurations using snap-on auxiliary switch blocks.
The country of origin for this model is Germany.
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