G3NA-440B
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Overview of Omron G3NA-440B
The Omron G3NA-440B is a high-capacity AC solid state relay designed for switching large loads efficiently. This model supports an operating voltage range of 200 to 480 VAC and can handle a maximum load current of 40 A. It is equipped with zero-cross switching technology to minimize electrical noise and improve longevity, making it suitable for robust industrial applications.
Key Features of Omron G3NA-440B
- Load voltage range: 200 to 480 VAC
- Maximum load current: 40 A at 40°C
- Input control voltage: 5 to 24 VDC
- Zero-cross function for reduced electrical noise and smoother switching
- Built-in LED operation indicator for status monitoring
- Insulation voltage: 4000 VAC (measured for 1 minute)
- Screw terminal connections for secure wiring
- Compact, uniform mounting pitch for easy installation
- Protection: Built-in varistor to absorb external surges
- Operating temperature range: -30 to 80 °C (no condensation or freezing allowed)
Technical Specifications
| Model Number | G3NA-440B |
| Load Voltage | 200 to 480 VAC |
| Load Current | 40 A (at 40 °C) |
| Input Voltage Range | 5 to 24 VDC |
| Zero Cross Function | Yes |
| Operation Indicator | LED |
| Insulation Voltage | 4000 VAC (1 min) |
| Connection Type | Screw Terminals |
| Protection | Varistor |
| Operating Temperature | -30 to 80 °C |
Applications / Use Case
The G3NA-440B solid state relay is ideal for controlling heating elements, motors, and lighting loads in industrial environments where high current capacity and clean switching are required. Its zero-cross feature helps reduce electrical noise and extends equipment life, making it a preferred choice for rugged industrial automation setups.
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