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Siemens SIRIUS 3RT Size S0, 3RT2 Contactor, 24 V dc Coil, 3-Pole, 38 A, 18.5 kW, 3NO, 400 V ac
- RS Stock No.:
- 706-1412
- Mfr. Part No.:
- 3RT2028-1BB40
- Brand:
- Siemens
Subtotal (1 unit)*
£170.20
(exc. VAT)
£204.24
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 21 unit(s) ready to ship
- Plus 14 unit(s) ready to ship from another location
- Plus 999,999,978 unit(s) shipping from 27 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £170.20 |
*price indicative
Better World
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- RS Stock No.:
- 706-1412
- Mfr. Part No.:
- 3RT2028-1BB40
- 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 | 3 | |
| Contact Voltage Rating | 400 V ac | |
| Contact Current Rating | 38 A | |
| Range | SIRIUS 3RT | |
| Series | Size S0, 3RT2 | |
| Power Rating | 18.5 kW | |
| Normal State Configuration | 3NO | |
| Number Of Auxiliary Contacts | 2 | |
| Terminal Type | Screw | |
| Width | 45mm | |
| Length | 85mm | |
| Depth | 107mm | |
| Better World Claim | Low carbon manufacture | |
| Better World Product | Yes | |
| Minimum Operating Temperature | -25°C | |
| Maximum Operating Temperature | +60°C | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Coil Voltage 24 V dc | ||
Number of Poles 3 | ||
Contact Voltage Rating 400 V ac | ||
Contact Current Rating 38 A | ||
Range SIRIUS 3RT | ||
Series Size S0, 3RT2 | ||
Power Rating 18.5 kW | ||
Normal State Configuration 3NO | ||
Number Of Auxiliary Contacts 2 | ||
Terminal Type Screw | ||
Width 45mm | ||
Length 85mm | ||
Depth 107mm | ||
Better World Claim Low carbon manufacture | ||
Better World Product Yes | ||
Minimum Operating Temperature -25°C | ||
Maximum Operating Temperature +60°C | ||
- COO (Country of Origin):
- DE
Contactors – 3RT2 Range
The 3RT2 contactors are climate-proof and are suitable and tested for use worldwide, sizes S00 to S2, up to 37 kW
Size S00, up to 7.5 kW
Size S0, up to 18.5 kW
Size S2, up to 37 kW
Screw connection / Spring Clamp
Impulse voltage resistance 6 kV
Insulation voltage 690 V
Real loss power only 4 W
Designation K according to DIN 40719 (extendable to IEC 204-2) & IEC 750; Q according to DIN EN 61346-2
Size S0, up to 18.5 kW
Size S2, up to 37 kW
Screw connection / Spring Clamp
Impulse voltage resistance 6 kV
Insulation voltage 690 V
Real loss power only 4 W
Designation K according to DIN 40719 (extendable to IEC 204-2) & IEC 750; Q according to DIN EN 61346-2
Note
Screw terminals can only be used with screw terminal overloads and spring terminals can only be used with spring terminal overloads.
Approvals
CE, UL, CSA, CCC
Siemens 3-Pole Contactor, 400V Voltage Rating, 38A Current Rating - SIRIUS Innovation Series - 3RT2028-1BB40
For effective motor control and protection, choose this contactor from the Siemens SIRIUS Innovation range. It works by switching the motor on or off and can offer short-circuit protection when used as a starter. It has an operating temperature range of -25°C to +60°C, so you can use it safely in demanding industrial environments. Thanks to minimal power loss of 3.8W, this is an energy-efficient choice for motor control. It has a mechanical service life of 10 million operating cycles, so you can rely on it for long-term performance in applications such as lifts and escalators.
• Screw-type terminals for quick and easy installation
• Contact voltage rating of 400V is suitable for use in low-voltage applications
• Ingress protection rating of IP20 indicates it's resistant dust and objects larger than 12mm in size, including fingers
• Rated surge voltage resistance of up to 6kV to withstand power spikes
• Contact voltage rating of 400V is suitable for use in low-voltage applications
• Ingress protection rating of IP20 indicates it's resistant dust and objects larger than 12mm in size, including fingers
• Rated surge voltage resistance of up to 6kV to withstand power spikes
What are the dimensions of this contactor?
With compact dimensions of 85mm (height), 45mm (width) and 107mm (depth), this contactor is a space-saving solution for smaller enclosures.
