3RF2255-3AC45
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$185.20
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$185.20
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Overview of Siemens 3RF2255-3AC45
Buy genuine Siemens 3RF2255-3AC45 online for your automation system. This solid-state relay from Siemens' SIRIUS series is designed for robust industrial applications requiring reliable switching of three-phase loads. With a rated current of 55A and an operating voltage range of 48 to 600V AC, it supports a control voltage from 4 to 30 V DC. The device features zero-crossing switching technology, ensuring minimal electrical noise and enhanced longevity of connected equipment. Its sturdy construction allows for mounting on suitable cooling surfaces and operation in ambient temperatures from -25°C to +60°C, making it suitable across various demanding industrial environments.
Key Features of Siemens 3RF2255-3AC45
- Three-phase, 3-pole solid-state relay optimized for high-current switching (up to 55A)
- Wide operating voltage range: 48 to 600 V AC at 50/60 Hz frequency
- Control voltage compatibility: 4 to 30 V DC for flexible integration
- Zero-crossing switching function to reduce electrical noise and stress on loads
- Blocking voltage up to 1200 V and surge voltage resistance of 6 kV
- Compact size: approximately 45 mm width, 95 mm height, and 47 mm depth
- Operating ambient temperature: -25°C to +60°C, suitable for harsh industrial conditions
- Designed for mounting on available cooling surfaces with ring cable terminals
Technical Specs of Siemens 3RF2255-3AC45
Explore Siemens 3RF2255-3AC45 specifications for detailed parameters.
| Specification | Value |
|---|---|
| Rated operating current | 55 A |
| Operating voltage (AC) | 48–600 V |
| Control voltage | 4–30 V DC |
| Number of poles | 3 |
| Switching type | Zero-crossing |
| Surge voltage resistance | 6 kV |
| Blocking voltage (thyristor) | 1200 V |
| Protection class | IP00 |
| Ambient operating temperature | -25°C to +60°C |
Applications / Use Case
This Siemens 3RF2255-3AC45 is commonly used in industrial automation worldwide. It efficiently controls three-phase motors, heaters, and resistive loads in manufacturing plants, packaging systems, conveyor lines, and machine automation setups. Its rugged design and zero-cross switching are ideal for environments requiring high reliability and reduced electromagnetic interference, making it a preferred choice for factory control panels and process control systems needing precise power switching.
Price & Availability
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