Siemens SIRIUS 3RH2 Contactor Relay, 24 V dc Coil, 4-Pole, 10 A, 2NO + 2NC, 690 V ac
- RS Stock No.:
- 746-0737
- Distrelec Article No.:
- 136-23-010
- Mfr. Part No.:
- 3RH2122-1BB40
- Brand:
- Siemens
Subtotal (1 unit)*
£34.08
(exc. VAT)
£40.90
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 55 unit(s) ready to ship
- Plus 73 unit(s) ready to ship from another location
- Plus 4 unit(s) shipping from 03 October 2025
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Units | Per unit |
|---|---|
| 1 + | £34.08 |
*price indicative
- RS Stock No.:
- 746-0737
- Distrelec Article No.:
- 136-23-010
- Mfr. Part No.:
- 3RH2122-1BB40
- 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 | |
| Coil Voltage | 24 V dc | |
| Number of Poles | 4 | |
| Contact Voltage Rating | 690 V ac | |
| Contact Current Rating | 10 A | |
| Series | 3RH2 | |
| Range | SIRIUS | |
| Normal State Configuration | 2NO + 2NC | |
| Number Of Auxiliary Contacts | 4 | |
| Terminal Type | Screw | |
| Width | 45mm | |
| Length | 57.5mm | |
| Depth | 73mm | |
| Mounting Style | DIN Rail Mount | |
| Maximum Operating Temperature | +60°C | |
| Minimum Operating Temperature | -25°C | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Coil Voltage 24 V dc | ||
Number of Poles 4 | ||
Contact Voltage Rating 690 V ac | ||
Contact Current Rating 10 A | ||
Series 3RH2 | ||
Range SIRIUS | ||
Normal State Configuration 2NO + 2NC | ||
Number Of Auxiliary Contacts 4 | ||
Terminal Type Screw | ||
Width 45mm | ||
Length 57.5mm | ||
Depth 73mm | ||
Mounting Style DIN Rail Mount | ||
Maximum Operating Temperature +60°C | ||
Minimum Operating Temperature -25°C | ||
- Datasheet_3RH2122-1BB40
- Sirius Innovation Accessory Guide
- Sirius Innovation Catalogue
- Sirius Innovations Switching Devices
- Solutions for frequent switching or soft starting
- Basic Information
- Siemens Sirius Migration
- Sirius: Migrating From Classic to Innovation
- Catalogue - Contactor Relays and Relays
- Environmental Product Declaration - Overview
- Environmental Product Declaration
- COO (Country of Origin):
- DE
Siemens Contactor Relay, 24V DC Coil Voltage, 10A - SIRIUS Innovation Series - 3RH2122-1BB40
Safely turn an electric motor on and off using this contactor relay from Siemens. It has a high contact voltage rating of 690V AC (alternating current), so it's suitable for use with heavy-duty equipment. For additional signalling capabilities, you can attach two auxiliary switches to it. An integrated fuse link prevents damage in the event of a short circuit for enhanced electrical safety. A broad operating temperature range of -25°C to +60°C makes it suitable for use in demanding environments. Use this contactor to control high-current motors and lighting systems.
• Surge voltage resistance of 6kV to withstand overloads
• Contact reliability of one faulty switching operation per 100 million for dependable use
• Robust mechanical service life of 30 million switching cycles for long-lasting performance
• IP20 (ingress protection) rating means it's touch-proof and protected against objects larger than 12mm in size
• Contact reliability of one faulty switching operation per 100 million for dependable use
• Robust mechanical service life of 30 million switching cycles for long-lasting performance
• IP20 (ingress protection) rating means it's touch-proof and protected against objects larger than 12mm in size
How do I mount this contactor?
You can install this contactor on a standard 35mm mounting rail using screws or snap-on clips. It rotates up to 180° on a vertical surface for enhanced flexibility.