Description
The OMRON G3NA-440B-2 is a high-performance Solid State Relay (SSR) designed for heavy-duty industrial applications requiring high current switching. This relay features a robust “hockey puck” design with screw terminals, providing reliable control of AC loads up to 40A. It utilizes semiconductor switching technology for silent, fast, and maintenance-free operation, making it ideal for controlling heating elements, motors, and other high-power devices. With built-in zero-cross function for reduced EMI and a wide load voltage range of 180-528VAC, this SSR offers superior performance in harsh industrial environments.
Key Features
- High-Current Solid State Relay: Rated for 40A load current, suitable for heavy-duty applications.
- Sensing Range: Wide load voltage range of 180-528VAC.
- Detection Principle: Zero-cross function for noise reduction and minimal EMI generation.
- Output Configuration: SPST-NO (Single-Pole Single-Throw, Normally Open).
- Connection: Screw terminals for secure and reliable wiring.
- Protection Rating: Built-in varistor for surge absorption (except G3NA-D210B models).
- Operating Temperature: -30°C to +80°C.
- Response Time: Fast switching with operate/release time optimized for AC cycles.
- Country of Origin: Japan
Technical Specifications
- Supply Voltage: 5-24V DC (Input control voltage).
- Current Consumption: ≤ 20 mA (Input current).
- Output Type: AC output (SPST-NO).
- Output Current: 40 A (With heat sink at 40°C ambient).
- Switching Frequency: Zero-cross function enabled.
- Light Source: Phototriac coupler for isolation.
- Housing Material: Plastic with protective cover.
- Dimensions: Standard “hockey puck” design.
- Weight: Approx. 80 g.
- Connection Type: Screw terminal.
- Protection Class: Built-in varistor (surge protection).
- Operating Temperature: -30°C to +80°C.
- Storage Temperature: -30°C to +100°C.
- Standards: UL, CSA, TÜV compliant.
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for configuration and installation
- Wiring and mounting assistance
- Compatibility verification with existing systems
- Commissioning and diagnostics support available
Delivery Time
- Standard delivery: 3-5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine OMRON components
- Global supply network with competitive pricing
- Expertise in industrial automation systems
- Comprehensive technical documentation
- Responsive customer service and support
Applications
- Heater Control: High-power industrial heating systems and ovens.
- Material Handling: Control of large motors in conveyor and handling systems.
- Packaging Machinery: High-current applications in sealing and cutting.
- Robotics and Automation: Power control in automated industrial processes.
- Quality Control: High-power testing and inspection equipment.
- Machine Safety: Overload protection and power management in heavy machinery.





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