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Siemens SIRIUS 3RT.3 Size S0, 3RT23 Contactor, 24 V dc Coil, 4-Pole, 40 A, 7.5 kW, 4NO, 400 V ac
- RS Stock No.:
- 861-3421
- Mfr. Part No.:
- 3RT2326-1BB40
- Brand:
- Siemens
Subtotal (1 unit)*
£128.53
(exc. VAT)
£154.24
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 1 unit(s) ready to ship from another location
- Plus 3 unit(s) shipping from 28 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £128.53 |
*price indicative
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- RS Stock No.:
- 861-3421
- Mfr. Part No.:
- 3RT2326-1BB40
- 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 | 400 V ac | |
| Contact Current Rating | 40 A | |
| Series | Size S0, 3RT23 | |
| Range | SIRIUS 3RT.3 | |
| Power Rating | 7.5 kW | |
| Normal State Configuration | 4NO | |
| Auxiliary Contact Configuration | 1NO + 1NC | |
| Number Of Auxiliary Contacts | 2 | |
| Terminal Type | Screw | |
| Width | 60mm | |
| Length | 85mm | |
| Depth | 107mm | |
| Better World Product | Yes | |
| Better World Claim | Low carbon manufacture | |
| Pole and Throw Configuration | 4PST | |
| Mounting Style | DIN Rail | |
| Minimum Operating Temperature | -25°C | |
| Load Voltage | 400V ac | |
| Load Current | 40A | |
| Maximum Operating Temperature | +60°C | |
| Control Voltage | 24 V dc | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Coil Voltage 24 V dc | ||
Number of Poles 4 | ||
Contact Voltage Rating 400 V ac | ||
Contact Current Rating 40 A | ||
Series Size S0, 3RT23 | ||
Range SIRIUS 3RT.3 | ||
Power Rating 7.5 kW | ||
Normal State Configuration 4NO | ||
Auxiliary Contact Configuration 1NO + 1NC | ||
Number Of Auxiliary Contacts 2 | ||
Terminal Type Screw | ||
Width 60mm | ||
Length 85mm | ||
Depth 107mm | ||
Better World Product Yes | ||
Better World Claim Low carbon manufacture | ||
Pole and Throw Configuration 4PST | ||
Mounting Style DIN Rail | ||
Minimum Operating Temperature -25°C | ||
Load Voltage 400V ac | ||
Load Current 40A | ||
Maximum Operating Temperature +60°C | ||
Control Voltage 24 V dc | ||
- Datasheet
- Switching Devices for Load Feeders
- Datasheet
- Sirius: Migrating From Classic to Innovation
- Environmental Product Declaration - Overview
- Siemens EcoTech label
- Environmental Product Declaration
- Instruction Sheet - 3RT2.1/3RH21/3RH24 Series
- Manual - Short-Circuit Current Rating of Industrial Control Panels
- Catalogue - Special Applications
RoHS Status: Exempt
- COO (Country of Origin):
- DE
Siemens size S0, 3RT23 Series Contactor, 24V DC Coil Voltage, 40A Current Rating - 3RT2326-1BB40
This contactor is a reliable solution for controlling electrical circuits and providing overload protection. It operates at a coil voltage of 24V DC and features dimensions of 85mm in length, 60mm in width, and 107mm in depth. With a robust construction, it is suitable for diverse applications in the electrical and automation sectors.
Features & Benefits
• Designed with a 4NO configuration for versatile control
• Suitable for 400V AC circuits, enhancing compatibility
• Rated for 40A, allowing significant current handling
• Screw terminal connections ensure secure and reliable installations
• Suitable for 400V AC circuits, enhancing compatibility
• Rated for 40A, allowing significant current handling
• Screw terminal connections ensure secure and reliable installations
Applications
• Utilised in automated machinery for sequence control
• Ideal for motor start/stop in industrial settings
• Suitable for circuit protection in control panels
• Can be implemented in HVAC systems for efficient operations
• Ideal for motor start/stop in industrial settings
• Suitable for circuit protection in control panels
• Can be implemented in HVAC systems for efficient operations
What is the temperature range for this device during operation?
This device can operate effectively within a temperature range of -25 °C to +60 °C, allowing for diverse environmental conditions.
How does the auxiliary contact configuration improve functionality?
The auxiliary contact configuration of 1NO + 1NC allows for control circuit integration, enabling both signalling and interlocking operations in complex systems.
What type of mounting does this product support?
It supports DIN rail mounting, which simplifies installation in standard control cabinets and optimises space.
What is the maximum altitude for installation?
This contactor can be installed at altitudes of up to 2,000 metres, making it versatile for various industrial environments.
How many mechanical operating cycles can this device typically handle?
It can sustain up to 10 million mechanical operating cycles, ensuring longevity and reliability in operational use.
