Siemens 3RH2 Contactor Relay, 125V dc Coil, 3 A 690V ac, 4 NO, 690V ac
- RS Stock No.:
- 216-2830
- Mfr. Part No.:
- 3RH2140-1BG40
- Brand:
- Siemens
Subtotal (1 unit)*
£38.71
(exc. VAT)
£46.45
(inc. VAT)
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In Stock
- Plus 14 unit(s) shipping from 20 April 2026
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Units | Per unit |
|---|---|
| 1 + | £38.71 |
*price indicative
- RS Stock No.:
- 216-2830
- Mfr. Part No.:
- 3RH2140-1BG40
- 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 | |
| Product Type | Contactor Relay | |
| Coil Voltage | 125V dc | |
| Contact Voltage | 690V ac | |
| Contact Current | 3A | |
| Series | 3RH2 | |
| Mount Type | DIN Rail | |
| Normal State Configuration | 4 NO | |
| Auxiliary Contact Configuration | 4 NO | |
| Number of Auxiliary Contacts | 4 | |
| Terminal Type | Screw | |
| Minimum Operating Temperature | -25°C | |
| Operational Current Ie | 3A | |
| Control Circuit Voltage Uc | 690V ac | |
| Maximum Operating Temperature | 60°C | |
| Length | 58mm | |
| Depth | 73mm | |
| Standards/Approvals | IEC 60529, CCC, CE, CSA, EAC, IEC 60068-2-30, IEC 60947-5-1, IEC 61508, IEC 81346-2, UL | |
| Width | 45mm | |
| Pole and Throw Configuration | 4 NO | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type Contactor Relay | ||
Coil Voltage 125V dc | ||
Contact Voltage 690V ac | ||
Contact Current 3A | ||
Series 3RH2 | ||
Mount Type DIN Rail | ||
Normal State Configuration 4 NO | ||
Auxiliary Contact Configuration 4 NO | ||
Number of Auxiliary Contacts 4 | ||
Terminal Type Screw | ||
Minimum Operating Temperature -25°C | ||
Operational Current Ie 3A | ||
Control Circuit Voltage Uc 690V ac | ||
Maximum Operating Temperature 60°C | ||
Length 58mm | ||
Depth 73mm | ||
Standards/Approvals IEC 60529, CCC, CE, CSA, EAC, IEC 60068-2-30, IEC 60947-5-1, IEC 61508, IEC 81346-2, UL | ||
Width 45mm | ||
Pole and Throw Configuration 4 NO | ||
- COO (Country of Origin):
- DE
Siemens 3RH2 Series Contactor Relay, 125V DC Coil Voltage, 3A Current Rating - 3RH2140-1BG40
This contactor relay is designed for efficient automation applications, featuring a robust 4NO contact configuration. With a compact design measuring 57.5mm in length, 45mm in width, and 73mm in depth, it offers significant versatility and ease of installation on DIN rail systems. Operating at a coil voltage of 125V DC and an AC contact voltage rating of 690V, this device provides reliable performance across various industrial settings.
Features & Benefits
• Supports a maximum contact current rating of 3A for robust usage
• Mechanical life extends up to 30 million operating cycles for longevity
• Delivers a high insulation voltage of 690V for safety standards
• Auxiliary contact relay included for expanded functionality
• Shock resistance ratings ensure durability in demanding environments
• Designed for efficient heat dissipation with a power loss of only 4W
Applications
• Utilised in industrial automation systems for motor control
• Effective in power distribution for switching operations
• Suitable for controlling ancillary equipment in machinery
• Ideal for complex control systems requiring reliable relay activation
What is the range of ambient temperatures this device can operate in?
This contactor relay functions efficiently within an ambient temperature range of -25°C to +60°C, making it suitable for various operating environments.
How does the relay enhance safety in electrical systems?
With a high insulation voltage rating and several operational current ratings, it effectively manages electrical loads while reducing the risk of short circuits.
What type of mounting options are available for installation?
The relay can be easily mounted on standard 35mm DIN rails, enabling straightforward integration into existing electrical panels or enclosures.