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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RF2090-1AA02 |
| Alternative Part Number | 3RF20901AA02 |
| Manufacturer | Siemens |
| Product Brand Name | SIRIUS |
| Product Designation | Solid-state relay |
| Product Type Designation | 3RF20 |
| Product Function | Zero-point switching |
| Number of Poles | 1 (for main current circuit) |
| Number of NO Contacts | 1 (for main contacts) |
| Number of NC Contacts | 0 (for main contacts) |
| Operating Voltage (AC 50 Hz) | 24 ... 230 V |
| Operating Voltage (AC 60 Hz) | 24 ... 230 V |
| Operating Frequency | 50 ... 60 Hz |
| Operating Current at AC-51 | Rated value 88 A |
| Operating Current (Minimum) | 500 mA |
| Insulation Voltage Rated Value | 600 V |
| Voltage Slew Rate (Maximum) | 1,000 V/µs |
| Block Voltage (Maximum) | 800 V |
| Reverse Current of Thyristor | 10 mA |
| Derating Temperature | 40 °C |
| Active Power Loss (Typical) | 118 W |
| Surge Current Resistance | Rated value 1,150 A |
| I2t Value (Maximum) | 6,600 A²·s |
| Control Supply Voltage (DC) | 15 ... 24 V |
| Control Current (DC Rated Value) | 15 mA |
| Installation Altitude (Maximum) | 1,000 m above sea level |
| Ambient Temperature (Operating) | -25 ... +60 °C |
| Ambient Temperature (Storage) | -55 ... +80 °C |
| Protection Class IP | IP20 |
| Resistance Against Vibration | 2g (according to IEC 60068-2-6) |
| Resistance Against Shock | 15g / 11 ms (according to IEC 60068-2-27) |
| Mounting Type | Screw fixing |
| Dimensions (Width x Height x Depth) | 45 mm x 58 mm x 48 mm |
| Electrical Connection Type | Screw-type terminals |
| Conductor Cross-Section (Solid) | 1.5 ... 6 mm² (for main contacts) |
| Conductor Cross-Section (Stranded) | 1 ... 10 mm² (with conductor end processing, for main contacts) |
| Tightening Torque (Main Contacts) | 2 ... 2.5 N·m |
| Tightening Torque (Auxiliary Contacts) | 0.5 ... 0.6 N·m |
| Certificates/Approvals | General Product Approval, EMC Declaration of Conformity |
The Siemens 3RF2090-1AA02 is a robust solid-state relay designed for seamless integration into a wide range of industrial applications. This single-phase semiconductor relay is part of the SIRIUS product family, renowned for its reliability and efficiency in controlling electrical loads.
With an overall width of 45 mm, this compact device is capable of handling a significant operating current of up to 90 A at an operating voltage range of 24 to 230 V AC, at both 50 and 60 Hz frequencies. Its zero-point switching functionality ensures minimal electrical noise during operation, making it suitable for environments where electronic interference must be kept to a minimum.
The relay boasts an insulation voltage rated at 600 V and features a control supply voltage of DC 15 to 24 V, with a control current rated at 15 mA for DC. Its design facilitates easy installation with screw fixing and side-by-side mounting capabilities, ensuring a secure and reliable connection.
Engineered for durability, the Siemens 3RF2090-1AA02 can withstand shock resistance as per IEC 60068-2-27 standards and vibration resistance according to IEC 60068-2-6. The device is also designed with a derating temperature of 40 °C, ensuring stable performance even in demanding thermal conditions.
The relay's terminals are designed to accommodate a variety of conductor cross-sections, both solid and finely stranded, with core end processing. This flexibility in connection options further enhances its suitability for diverse industrial settings.
In summary, the Siemens 3RF2090-1AA02 solid-state relay is a high-performance, versatile component that offers reliable operation, straightforward installation, and compatibility with a broad spectrum of industrial electrical systems.
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Frequently Asked Questions
What is the function of this solid-state relay?
The solid-state relay is designed for zero-point switching in single-phase applications, providing efficient control for electrical circuits.
Can this relay be used for both AC and DC control supply voltages?
No, the control supply voltage for this relay is DC only, with a rated value of 30 V and an operating range of 15 to 24 V.
What is the maximum operating current for this relay?
The maximum operating current for the 3RF2090-1AA02 is 90 A when used in AC-1 applications at 400 V.
What are the ambient temperature limits for operating this relay?
The relay can operate within an ambient temperature range of -25 to +60 °C and can be stored in temperatures ranging from -55 to +80 °C.
What type of mounting is suitable for this relay?
The relay is designed for screw fixing and can be mounted side-by-side with other units.
What is the insulation voltage rating for this relay?
The insulation voltage rated value for this relay is 600 V.
What is the minimum operating current for this relay?
The minimum operating current for the relay is 500 mA.
What are the dimensions of this relay?
The dimensions of the relay are 45 mm in width, 58 mm in height, and 48 mm in depth.
What type of electrical connections does this relay support?
This relay supports screw-type terminals for both the main current circuit and the auxiliary and control circuit.
How is the relay protected against overvoltage?
The relay has a blocking voltage rating of 800 V for the thyristor in the main contacts, and a voltage slew rate of up to 1,000 V/µs.
