Description
Designed for precise closed-loop temperature regulation, the Omron G3PE-545B-2N is a heavy-duty three-phase solid-state contactor engineered specifically for industrial heating systems. This zero-cross-equipped controller manages electrical noise and transient surges efficiently, extending the service life of connected heating elements. Utilizing a phototriac isolation method, it isolates control circuitry from high-power load currents to ensure safe, stable operation. Built with rugged screw terminals, this solid-state relay manages high-capacity resistive loads up to 45 A in challenging thermal environments.
Features
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Zero Cross Functionality: Minimizes high-frequency electromagnetic interference (EMI) by initiating switching exactly at the zero-voltage point of the AC cycle.
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Phototriac Isolation: Provides high electrical isolation between input control signals and the high-voltage load circuits.
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High-Current Capacity: Supports continuous load currents up to 45 A at ambient temperatures up to 40 degC.
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Secure Interfacing: Built with robust screw terminals for reliable wiring under high vibrational stresses.
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Built-In Heat Sink Compatibility: Engineered for optimized heat dissipation during demanding heavy-duty thermal cycles.
Applications
- Plastic extrusion and injection molding temperature control
- Industrial heat treatment furnaces and ovens
- Packaging machinery shrink tunnels
- Semiconductor manufacturing process heaters
- Food processing and baking equipment heating elements
Technical Specifications
| Parameter |
Value |
| Manufacturer |
Omron |
| Model/Part Number |
G3PE-545B-2N |
| Device Type |
3-Phase Heater Control / Solid State Relay |
| Rated Input Voltage |
12 to 24 VDC |
| Operating Input Voltage Range |
9.6 to 30 VDC |
| Input Current |
10 mA max. (at 24 VDC) |
| Must-Operate Voltage |
9.6 VDC max. |
| Must-Release Voltage |
1 VDC min. |
| Rated Load Voltage |
200 to 480 VAC |
| Load Voltage Range |
180 to 528 VAC |
| Load Current |
45 A (at 40 degC) |
| Minimum Load Current |
0.5 A |
| Inrush Current Resistivity |
440 A (60 Hz, 1 cycle) |
| Permissible I2t Value |
1260 A2s |
| Applicable Load Capacity |
37.4 kW (at 480 VAC) |
| Isolation Method |
Phototriac |
| Zero Cross Function |
Equipped |
| Terminal Structure |
Screw Terminal |
| Weight |
3 kg |
Installation Guidelines
To ensure optimal performance and prevent thermal runaway, observe the following engineering instructions during installation:
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Mounting Orientation: Mount the unit vertically to facilitate natural convective airflow across the integrated heatsink fins.
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Ventilation and Spacing: Maintain specified clearance distances from adjacent components on the DIN rail or backplane panel to prevent thermal bottlenecking.
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Terminal Torque: Secure all power and control screw terminals to the OEM-specified torque limit to prevent localized overheating and contact degradation.
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Surge Protection: Implement appropriate semiconductor fuses to protect the output phototriac circuit against short-circuit faults.