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The 3RT5044-1AN20 is a SIRIUS 3RT5 series AC contactor manufactured by Siemens. It is typically used in industrial automation control systems to remotely connect and disconnect motors or other electrical loads.
Heavy-Duty Performance
Exceptional Service Life
Seamless Modularity
The 3RT5044-1AN20 is a heavy-duty SIRIUS Size S3 power contactor designed for demanding industrial environments. Featuring a universal 220V 50/60Hz coil and a robust switching capacity of 65A / 30kW at 400V, it serves as a cornerstone for controlling large-scale motors and inductive loads. Its combination of superior mechanical endurance, secure screw terminal technology, and extensive modular expansion potential makes it the optimal choice for ensuring long-term operational stability and efficiency in industrial power control systems.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Siemens 3RT5044-1AN20 Power contactor Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Mining
Controlling heavy-duty belt conveyors for long-distance mineral transportation.
Cement Industry
Powering large cooling fans or auxiliary drive systems for rotary kilns.
Steel & Metallurgy
Controlling blast furnace blowers to ensure a steady air supply during smelting.
Power Generation
Managing coal feeders or ash handling conveyor motors in coal-fired power plants.
Pulp & Paper
Powering high-speed motors in large pulp refiners or paper cutting machines.
Construction Machinery
Controlling the hoisting motors of tower cranes or large-scale concrete mixers.
When using the Siemens 3RT5044-1AN20, ensure the coil voltage is stable at 220V AC to prevent burnout. Since it carries high power (65A/30kW), all main circuit terminals must be securely tightened, and contacts should be regularly inspected for erosion to avoid overheating. Additionally, for high-frequency switching or inching (AC-4) duties, strictly follow the derating curves. It is highly recommended to install a surge suppressor on the coil side to eliminate inductive spikes and protect the integrity of the upstream control system and auxiliary signals.
It is a 3-pole power contactor from the Siemens SIRIUS series, Size S3, primarily used for switching high-power motor loads.
What is the rated coil voltage of 3RT5044-1AN20?
Its rated control supply voltage for the coil is 220 V AC (50/60 Hz).
How to use products like 3RT5044-1AN20?
Install it in a control cabinet and receive a 220V AC signal through the coil terminals to close the contacts, thereby connecting or disconnecting the power supply to high-power equipment.
What auxiliary contacts does 3RT5044-1AN20 provide?
This model usually does not have integrated auxiliary contacts or depends on configuration, but multiple side or top-mounted auxiliary blocks can be easily added.
Does 3RT5044-1AN20 support DIN rail mounting?
Yes, it can be mounted on a standard 35mm or 75mm DIN rail, but screw mounting is also recommended for added stability.
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Focus on supplying surplus and new automation spare parts With abundant inventory and partnerships with top manufacturers, Apter Power ensure high-quality solutions for your industrial requirements
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Many difficult to find parts, including PLC, HMI, DCS, panel controllers, industrial PCs, and VFDs. These parts help extend the lifespan of your existing system, reduce expensive replacement costs, and minimize downtime, thereby keeping your operations running smoothly
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For over 20 years, Apter Power always been a trustworthy leader in the industrial automation supply industry. As a trustworthy supplier of automation parts, we continuously expand our product line, expand our global customer base, and have won numerous awards
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How do we deliver
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Shutdown will waste your time and money - always ready to assist you. As a reliable supplier of automation parts, we provide fast shipping services to quickly deliver critical components to your hands, minimizing downtime to the greatest extent possible.
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Our long-term success stems from our commitment to quality, reliability, and customer satisfaction. Whether you are purchasing rare spare parts. Apter Power stands out among industrial automation parts suppliers with its rich experience, high-quality service, and unparalleled quality assurance.
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We have a warehouse of 50000 square meters, providing tens of thousands of different spare parts, and 24/7 online sales personnel to provide support for you. Always available, crucial for both you and us.
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Experienced team members assist in providing our customers with fast delivery of automation and control components, delivering to over 60000 users worldwide.
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Our extensive inventory of control systems (DCS, PLC, CNC), panel controllers, human-machine interfaces (HMI), industrial PCs, drivers, and power spare parts helps you reduce maintenance costs. Provide industrial automation spare parts that manufacturers no longer provide. We are a leading supplier that provides rare industrial automation parts to businesses of all sizes, with a strong track record of delivering the highest quality parts and services to customers at highly competitive price.
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