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Siemens 3RF2420-1AC45

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3RF2420-1AC45

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Marvo Stock ID MV-78AL
HS Code 85364900
SKU 3RF2420-1AC45
Category General Automation
Warranty 12 months
Weight (kg) 1.00
Length (mm) 320.00
Width (mm) 250.00
Height (mm) 250.00

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Specification & Description

Specification Description
Part Number 3RF2420-1AC45
Alternative Part Number 3RF24201AC45
Manufacturer Siemens
Category General Automation
Product Type Solid-state contactor
Control Type Three-phase controlled
Operating Voltage 48 to 600 V AC at 50/60 Hz
Control Supply Voltage 4 to 30 V DC
Operational Current 20 A at AC-1/AC-51 at 400 V
Blocking Voltage 1200 V
Power Loss 66 W in hot operating state, 22 W per pole, typical 0.9 W without load current share
Insulation Voltage Rated value 600 V
Degree of Pollution 3
Surge Voltage Resistance Main circuit rated value 6 kV
Shock Resistance According to IEC 60068-2-27 15g / 11 ms
Vibration Resistance According to IEC 60068-2-6 2g
Reference Code According to EN 61346-2 Q, IEC 81346-2 Q
Number of Poles 3 for main current circuit
Number of NO Contacts 3 for main contacts
Number of NC Contacts 0 for main contacts
Operating Frequency Rated value 50 ... 60 Hz, relative symmetrical tolerance of 10 %
Operating Range Relative to the operating voltage at AC 40 ... 660 V at 50 Hz, 40 ... 660 V at 60 Hz
Dimensions (H x W x D) 100 mm x 112 mm x 90 mm
Protection Class IP20
Mounting Screw and snap-on mounting on 35 mm DIN rail
Connection Type Screw connection for main current circuit
Terminal Screw Type M4 for main contacts, M3 for auxiliary and control contacts
Tightening Torque Main contacts: 2 … 2.5 N·m, Auxiliary and control contacts: 0.5 … 0.6 N·m
Stripped Length of Cable 7 mm for main, auxiliary, and control contacts
Ambient Temperature Operating: -25 ... +60 °C, Storage: -55 ... +80 °C
Installation Altitude Maximum 1,000 m above sea level
Commodity Code 853649

The Siemens 3RF2420-1AC45 is a high-quality solid-state contactor designed for seamless integration into various industrial applications. This robust component is engineered to facilitate three-phase control, ensuring reliable and efficient operation in demanding environments. With a current rating of 22 A and an operational voltage range of 48 to 600 V AC at 50/60 Hz, it is well-suited for a wide array of electrical systems.

Crafted with precision, the 3RF2420-1AC45 boasts zero-point switching functionality, which minimises electrical noise and enhances the longevity of the system by reducing stress on electrical contacts during operation. The contactor's power loss is optimised for efficiency, with a typical loss of 0.9 W without load current share, ensuring that the device operates economically.

The unit's insulation voltage is rated at 600 V, and it is built to withstand surge voltages up to 6 kV, providing a robust defence against voltage spikes. The solid-state contactor is also designed to resist mechanical stresses, certified with a shock resistance of 15g in accordance with IEC 60068-2-27 and a vibration resistance of 2g as per IEC 60068-2-6, ensuring stable performance even in environments subject to physical disturbances.

For ease of installation, the 3RF2420-1AC45 features a screw and snap-on mounting design compatible with a 35 mm standard mounting rail, allowing for quick and secure installation. The device's dimensions are compact, with a height of 100 mm, a width of 112 mm, and a depth of 90 mm, making it suitable for integration into systems where space is at a premium.

The contactor's front protection class is IP20, indicating that it is protected against solid objects larger than 12.5 mm, such as fingers, ensuring safety during operation and maintenance. The ambient operating temperature range of -25 to +60 °C and storage temperature range of -55 to +80 °C make it versatile for use in a variety of climatic conditions.

Overall, the Siemens 3RF2420-1AC45 solid-state contactor is a reliable and efficient solution for industrial applications requiring precise control and robust performance. Its design and technical specifications make it a valuable component for those seeking to enhance their electrical systems' capabilities.

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Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

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Frequently Asked Questions

What is the function of a solid-state contactor?

A solid-state contactor is designed to switch electric circuits on and off using semiconductor components. Unlike electromechanical contactors, it operates without moving parts, providing faster switching, reduced wear, and often a longer service life. It's commonly used in applications requiring high switching frequencies and precise control.

Can this solid-state contactor be used for three-phase applications?

Yes, the Siemens 3RF2420-1AC45 is specifically designed for three-phase applications, providing efficient and reliable switching for three-phase loads.

What is the maximum operating voltage for this contactor?

The maximum operating voltage for this contactor is 600 V at AC, with an operating frequency rated at 50 to 60 Hz.

What type of control voltage is required for this contactor?

This contactor requires a DC control voltage, with a range of 4 to 30 V DC to operate effectively.

What is the rated operational current of this contactor?

The rated operational current for this contactor at AC-51 is 22 A.

What are the dimensions of this solid-state contactor?

The dimensions of the contactor are 100 mm in height, 112 mm in width, and 90 mm in depth.

What type of terminals does this contactor have for wiring?

This contactor is equipped with screw terminals for secure and reliable wiring connections.

What is the IP rating of this contactor?

The contactor has an IP20 rating, indicating protection against solid objects larger than 12.5 mm but not against water.

What is the significance of zero-point switching in solid-state contactors?

Zero-point switching in solid-state contactors means that the device switches on or off at the zero voltage crossing point of the AC power cycle. This helps to minimize electrical noise and reduce stress on the contactor, leading to smoother operation and potentially longer lifespan.

Is there any specific ambient temperature range for operating this contactor?

The contactor is designed to operate within an ambient temperature range of -25 to +60 degrees Celsius, ensuring reliable performance within these temperature limits.

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Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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