steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 months ago
3RT1045-1AL20
Siemens 3RT1045-1AL20 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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2. Dedicated Account Manager
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3. Your quote
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Ask our team
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3RT1045-1AL20 is a robust power contactor designed to handle high current applications with ease. This contactor is part of the SIRIUS product family, renowned for its reliability and efficiency in industrial environments. With a rating of AC-3 80 A and the capability to manage motors up to 37 kW at 400 V, it is an ideal choice for a wide range of applications.
Crafted for durability, the 3RT1045-1AL20 features three normally open (NO) contacts, ensuring a secure and stable connection for your main contacts. The contactor operates with a control supply voltage of 230 V AC at 50/60 Hz, making it versatile for use in various electrical setups.
The unit is engineered with a screw connection, allowing for straightforward installation and maintenance. It is designed to withstand mechanical operating cycles up to 10 million, highlighting its longevity and ability to perform in demanding operational conditions.
With an insulation voltage rated at 1,000 V and a surge voltage resistance of 6 kV, the 3RT1045-1AL20 ensures safe operation and protection against voltage spikes. The contactor's compact size, classified as size S3, and an IP20 protection class on the front, make it suitable for integration into a variety of control cabinets and systems.
The Siemens 3RT1045-1AL20 is a testament to high-quality engineering, providing a reliable solution for controlling high-power loads in industrial applications. Its robust construction and proven performance make it a valuable component for those seeking a dependable power management solution.
Crafted for durability, the 3RT1045-1AL20 features three normally open (NO) contacts, ensuring a secure and stable connection for your main contacts. The contactor operates with a control supply voltage of 230 V AC at 50/60 Hz, making it versatile for use in various electrical setups.
The unit is engineered with a screw connection, allowing for straightforward installation and maintenance. It is designed to withstand mechanical operating cycles up to 10 million, highlighting its longevity and ability to perform in demanding operational conditions.
With an insulation voltage rated at 1,000 V and a surge voltage resistance of 6 kV, the 3RT1045-1AL20 ensures safe operation and protection against voltage spikes. The contactor's compact size, classified as size S3, and an IP20 protection class on the front, make it suitable for integration into a variety of control cabinets and systems.
The Siemens 3RT1045-1AL20 is a testament to high-quality engineering, providing a reliable solution for controlling high-power loads in industrial applications. Its robust construction and proven performance make it a valuable component for those seeking a dependable power management solution.
| Specification | Description |
|---|---|
| Part Number | 3RT1045-1AL20 |
| Alternative Part Number | 3RT10451AL20 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Contact Configuration | 3NO (3 Normally Open) |
| Rated Operational Current | AC-3: 80 A, AC-1: 120 A |
| Rated Operational Voltage | 400 V |
| Control Supply Voltage | 230 V ac |
| Frequency | 50/60 Hz |
| Power Rating | AC-3: 37 kW / 400 V |
| Size | S3 |
| Connection Type | Screw Connection |
| Insulation Voltage | Rated at 1,000 V |
| Degree of Pollution | 3 |
| Installation Altitude | Maximum 2,000 m above sea level |
| Ambient Operating Temperature | -25 … +60 °C |
| Mechanical Operating Cycles | Typical 10,000,000 |
| Protection Class | IP20 on the front |
| Commodity Code | 853649 |
What is the rated operating current for this power contactor?
The rated operating current for the Siemens power contactor at AC-3 is 80 A at 400 V.
Can this contactor be used for motor control applications?
Yes, this contactor is suitable for motor control applications, with a rated service power of 37 kW at AC-3 for 400 V.
What is the control supply voltage required for this contactor?
The control supply voltage required for this contactor is AC 230V at both 50 Hz and 60 Hz.
What are the main circuit connection options for this contactor?
This contactor features screw connection terminals for the main circuit connections.
What is the size classification of this contactor?
This contactor is classified as size S3 according to the manufacturer's product range.
What is the insulation voltage rating for this contactor?
The insulation voltage rating for this contactor is 1,000 V.
What is the ambient temperature range for operating this contactor?
The ambient temperature range for operating this contactor is between -25°C and +60°C.
What is the degree of protection provided by the front of this contactor?
The front of this contactor provides a protection class of IP20.
How many poles does this contactor have for the main current circuit?
This contactor has 3 poles for the main current circuit.
What is the mechanical operating life expectancy of this contactor?
The mechanical operating life expectancy of this contactor is typically 10 million operating cycles.
- Controlling large motors in industrial applications
- Switching heating elements in HVAC systems
- Managing electrical circuits in conveyor systems
- Operating pumps in water treatment facilities
- Regulating compressors in refrigeration units
- Starting and stopping fans in ventilation systems
- Controlling lighting circuits in commercial buildings
- Managing power supply for industrial ovens and kilns
- Switching electromagnetic loads in manufacturing processes
- Integrating into control panels for automation systems
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
4 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
5 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
5 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
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