Siemens SIRIUS 3RH2 Contactor Relay, 3 A, 2NC + 2NO
- RS Stock No.:
- 211-3672
- Mfr. Part No.:
- 3RH2122-2XB40-0LA2
- Brand:
- Siemens
Subtotal (1 unit)*
£60.75
(exc. VAT)
£72.90
(inc. VAT)
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- Shipping from 28 October 2025
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Units | Per unit |
|---|---|
| 1 + | £60.75 |
*price indicative
- RS Stock No.:
- 211-3672
- Mfr. Part No.:
- 3RH2122-2XB40-0LA2
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Contact Current Rating | 3 A | |
| Series | 3RH2 | |
| Range | SIRIUS | |
| Normal State Configuration | 2NC + 2NO | |
| Control Voltage | 24 →34 Vdc | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Contact Current Rating 3 A | ||
Series 3RH2 | ||
Range SIRIUS | ||
Normal State Configuration 2NC + 2NO | ||
Control Voltage 24 →34 Vdc | ||
- COO (Country of Origin):
- DE
Siemens 3RH2 Series Contactor Relay, 24 to 34 V DC Coil Voltage, 690V AC Load Voltage - 3RH2122-2XB40-0LA2
This contactor relay, designed for railway applications, operates efficiently within a coil voltage Measuring 45mm in width and 73mm in depth, it supports configurations of 2 normally closed (NC) and 2 normally open (NO) contacts, making it versatile for various automation tasks. The relay is compatible with DIN rail mounting, ensuring easy installation in control panels.
Features & Benefits
• Operates effectively with a high contact voltage rating of 690V AC
• Utilises spring-loaded terminals for secure electrical connections
• Capable of handling a load current of up to 10A
• Mechanical service life of up to 30 million operating cycles
• Ensures reliable performance in temperatures ranging from -40°C to +70°C
• Integrated surge suppressor for enhanced durability during operation
• Utilises spring-loaded terminals for secure electrical connections
• Capable of handling a load current of up to 10A
• Mechanical service life of up to 30 million operating cycles
• Ensures reliable performance in temperatures ranging from -40°C to +70°C
• Integrated surge suppressor for enhanced durability during operation
Applications
• Used in automation control systems for rail infrastructure
• Suitable for various electrical relay requiring high reliability
• Effective in environments demanding robust temperature tolerance
• Ideal for PLC output configurations in industrial settings
• Suitable for various electrical relay requiring high reliability
• Effective in environments demanding robust temperature tolerance
• Ideal for PLC output configurations in industrial settings
How is the surge voltage resistance rated for this device?
The surge voltage resistance is rated at 6kV, ensuring robust protection against voltage spikes during operation.
What is the expected mechanical service life when using auxiliary contacts?
When used with an electronically optimised auxiliary switch block, the expected mechanical service life is typically 5 million operating cycles.
What environmental conditions can this relay withstand during storage?
During storage, it can withstand ambient temperatures ranging from -55°C to +80°C, maintaining its functionality in extreme conditions.
How does the relay perform under high demand rates?
With a B10 value of 1,000,000 under high demand rate conditions, it maintains a low proportion of dangerous failures, ensuring reliable operation.