Siemens Auxiliary Contact, 2 Contact, 1NC + 1NO, Snap-On, SIRIUS SIRIUS
- RS Stock No.:
- 201-1436
- Mfr. Part No.:
- 3RH1921-1EA11
- Brand:
- Siemens
Subtotal (1 unit)*
£10.27
(exc. VAT)
£12.32
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- Plus 52 unit(s) shipping from 01 December 2025
- Plus 7 unit(s) shipping from 01 December 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £10.27 |
*price indicative
- RS Stock No.:
- 201-1436
- Mfr. Part No.:
- 3RH1921-1EA11
- 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 | |
| Number of Contacts | 2 | |
| Normal State Configuration | 1NC + 1NO | |
| Mounting Style | Snap-On | |
| Range | SIRIUS | |
| Series | SIRIUS | |
| Contact Current Rating | 10 A | |
| Contact Voltage Rating | 440 V | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Number of Contacts 2 | ||
Normal State Configuration 1NC + 1NO | ||
Mounting Style Snap-On | ||
Range SIRIUS | ||
Series SIRIUS | ||
Contact Current Rating 10 A | ||
Contact Voltage Rating 440 V | ||
- COO (Country of Origin):
- RO
Siemens 3RH Series Auxiliary Contact, 1NC + 1NO, 10A Contact Current Rating - 3RH1921-1EA11
This auxiliary contact extends the functionality of contactors within the Siemens SIRIUS range, featuring both Normally Closed (NC) and Normally Open (NO) contacts for operational flexibility. The snap-on mounting style enables quick installation.
Features & Benefits
• 10 A contact rating meets high current demands
• Snap-on mounting facilitates installation and maintenance
• Dual NC and NO auxiliary contacts allow diverse circuit configurations
• Insulation voltage rating of 500 V enhances safety
• Mechanical service life of up to 10 million cycles ensures durability
• Compact dimensions enable integration in limited spaces
• Snap-on mounting facilitates installation and maintenance
• Dual NC and NO auxiliary contacts allow diverse circuit configurations
• Insulation voltage rating of 500 V enhances safety
• Mechanical service life of up to 10 million cycles ensures durability
• Compact dimensions enable integration in limited spaces
Applications
• Utilised with 3RT10 and 3RT12 contactors to augment functionality
• Suitable for automation tasks in electrical and mechanical sectors
• Effective for circuits requiring dependable switching under load
• Performs well in environments with variable temperature conditions
• Suitable for automation tasks in electrical and mechanical sectors
• Effective for circuits requiring dependable switching under load
• Performs well in environments with variable temperature conditions
What is the operational temperature range for this device?
The operational temperature range is from -25 to 60°C.
How does the installation process work?
Installation is straightforward with a snap-on design for easy attachment to compatible devices.
What type of wiring connections are compatible?
It accepts screw-type terminals for solid or stranded conductors, accommodating various wire sizes.
Can this auxiliary contact be used in existing setups?
Yes, it is designed for compatibility with specific Siemens contactors, enhancing current configurations.
What is the expected lifespan in operational cycles?
The mechanical service life typically reaches up to 10 million operating cycles.