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Siemens SIRIUS 3RT Size S0, 3RT2 Contactor, 24 V ac Coil, 3-Pole, 38 A, 18.5 kW, 1NO + 1NC, 400 V ac
- RS Stock No.:
- 213-0505
- Mfr. Part No.:
- 3RT2028-1AC20
- Brand:
- Siemens
Subtotal (1 unit)*
£115.81
(exc. VAT)
£138.97
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 5 unit(s) ready to ship
- Plus 5 unit(s) ready to ship from another location
- Plus 5 unit(s) shipping from 20 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £115.81 |
*price indicative
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- RS Stock No.:
- 213-0505
- Mfr. Part No.:
- 3RT2028-1AC20
- 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 ac | |
| Number of Poles | 3 | |
| Contact Voltage Rating | 400 V ac | |
| Contact Current Rating | 38 A | |
| Power Rating | 18.5 kW | |
| Range | SIRIUS 3RT | |
| Series | Size S0, 3RT2 | |
| Normal State Configuration | 1NO + 1NC | |
| Number Of Auxiliary Contacts | 2 | |
| Auxiliary Contact Configuration | 1NO + 1NC | |
| Terminal Type | Screw | |
| Width | 45mm | |
| Length | 85mm | |
| Depth | 97mm | |
| Better World Product | Yes | |
| Better World Claim | Low carbon manufacture | |
| Load Voltage | 400V ac | |
| Control Voltage | 24 V ac | |
| Mounting Style | DIN Rail | |
| Load Current | 38A | |
| Minimum Operating Temperature | -25°C | |
| Maximum Operating Temperature | +60°C | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Coil Voltage 24 V ac | ||
Number of Poles 3 | ||
Contact Voltage Rating 400 V ac | ||
Contact Current Rating 38 A | ||
Power Rating 18.5 kW | ||
Range SIRIUS 3RT | ||
Series Size S0, 3RT2 | ||
Normal State Configuration 1NO + 1NC | ||
Number Of Auxiliary Contacts 2 | ||
Auxiliary Contact Configuration 1NO + 1NC | ||
Terminal Type Screw | ||
Width 45mm | ||
Length 85mm | ||
Depth 97mm | ||
Better World Product Yes | ||
Better World Claim Low carbon manufacture | ||
Load Voltage 400V ac | ||
Control Voltage 24 V ac | ||
Mounting Style DIN Rail | ||
Load Current 38A | ||
Minimum Operating Temperature -25°C | ||
Maximum Operating Temperature +60°C | ||
- COO (Country of Origin):
- DE
Siemens size S0, 3RT2 Series Contactor, 24V AC Coil Voltage, 38A Current Rating - 3RT2028-1AC20
This contactor is a crucial component in automation and control systems, designed to manage high power applications efficiently. Operating at a coil voltage of 24V AC, it supports a load current of 38A and features a compact size S0 form factor with dimensions of 85mm x 45mm x 97mm. This product is built for reliable performance in various environments.
Features & Benefits
• Capable of handling 3-pole configurations for versatile use
• Designed for DIN rail mounting, ensuring easy installation
• Equipped with 2 auxiliary contacts for enhanced functionality
• Operates efficiently within a wide temperature range of -25°C to +60°C
• Supports an impressive power rating of 18.5kW at 400V AC
• Designed for DIN rail mounting, ensuring easy installation
• Equipped with 2 auxiliary contacts for enhanced functionality
• Operates efficiently within a wide temperature range of -25°C to +60°C
• Supports an impressive power rating of 18.5kW at 400V AC
Applications
• Suitable for controlling motors in industrial automation
• Ideal for use in heating and lighting systems
• Utilised in conveyor systems to enhance operational efficiency
• Used in machinery requiring high power switching
• Effective in demanding precise control solutions
• Ideal for use in heating and lighting systems
• Utilised in conveyor systems to enhance operational efficiency
• Used in machinery requiring high power switching
• Effective in demanding precise control solutions
How does the contactor enhance the reliability of electrical circuits?
The robust design ensures a mechanical service life of up to 10 million operations, significantly reducing downtime.
What auxiliary features does this product offer that benefit installation?
It includes screw-type terminals for main and auxiliary circuits, allowing for straightforward and secure electrical connections.
How does the operating temperature range affect performance in different environments?
With a wide temperature tolerance, it reliably functions even in challenging conditions, making it suitable for varied industrial applications.
