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Omron G3PE-245B-2N G3PE Series 3-Phase Solid State Contact Unit

Omron G3PE-245B-2N G3PE Series 3-Phase Solid State Contact Unit

Only 6 item(s) left in stock
  • Manufacturer: Omron

  • Product No.: G3PE-245B-2N

  • Country of origin:Japan

  • Product Type: 3-Phase Solid State Relays

  • Payment: T/T, Western Union

  • Weight: 500g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Description

Delivering high-capacity resistive load control for industrial thermal systems, the Omron G3PE-245B-2N provides robust 3-phase solid-state switching within demanding automation networks. This unit is specifically engineered for heating element control, utilizing a phototriac isolation method and an integrated zero-cross function to suppress electromagnetic interference and line noise during switching cycles. Fitted with heavy-duty screw terminals and an integrated heatsink structure, it manages high load currents reliably in high-density panel configurations without physical contact wear.

Features

  • Zero-Cross Control: Minimizes high-frequency noise and surge currents when turning on resistive heating elements.
  • High Isolation Barrier: Built-in phototriac isolation protects delicate low-voltage PLC control circuits from load-side transients.
  • Heavy-Duty Screw Terminals: Optimized physical connection interface ensures reliable contact pressure and low terminal resistance.
  • Robust Inrush Capacity: Features a high inrush current tolerance of up to 440 A to withstand line fluctuations and initial element cold resistance.

Applications

  • Industrial molding, curing, and heat-treatment ovens.
  • Plastic extrusion lines and injection molding heater bands.
  • Semiconductor manufacturing deposition and baking chambers.
  • Packaging machinery shrink tunnels and sealing bars.

Technical Specifications

Parameter Value / Specification
Manufacturer Omron
Model Reference G3PE-245B-2N
Control Input Rated Voltage 12 to 24 VDC
Control Input Operating Range 9.6 to 30 VDC
Maximum Input Current 10 mA maximum (at 24 VDC)
Must-Operate / Must-Release Voltages 9.6 VDC maximum / 1.0 VDC minimum
Rated Load Voltage 100 to 240 VAC (50/60 Hz)
Load Voltage Operating Range 75 to 264 VAC (50/60 Hz)
Rated Load Current 45 A (at ambient temperature of 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 15.5 kW (at 200 VAC)
Isolation Method Phototriac
Zero-Cross Function Equipped
Connection Method Screw Terminals
Shipping Weight (Calculated) 3.0 kg

Connections and Interfaces

Terminal / Pin Label Function and Wiring Assignment
A1 (+) Positive Control Input (12 to 24 VDC)
A2 (-) Negative Control Input (DC Common Ground)
L1 / L2 3-Phase AC Power Source Supply Lines (Inputs)
T1 / T2 3-Phase AC Controlled Load Feed Lines (Outputs to Heater)
Ground Terminal Metal baseplate connection for safety earthing

Empirical Engineering Insights

Alternative Models & Compatibility

The "2" designation in this module code indicates a 2-line control (3-phase, 2-element) configuration. This configuration controls two phases while passing the third phase directly, making it highly efficient for balanced delta heater networks. It is a drop-in functional replacement for legacy G3PE configurations of equivalent ratings, provided the 12-24 VDC logical signal current threshold can supply a continuous 10 mA.

Application Pitfalls & Engineering Notes

Thermal management is critical when operating at 45 A load currents. Ambient operating temperature within the enclosure must not exceed 40 degC to avoid automatic thermal derating. Ensure the module is mounted vertically with the heatsink fins unobstructed. If installing inside fully enclosed or non-ventilated control panels, derate your maximum load limit by up to 50% or introduce active thermal management (cabinet fans).

Commissioning & Wiring Tips

Always use properly crimped ring or fork terminals on the power lines to prevent stray strands from bridging adjacent terminals. Ensure the screw terminals are torqued down precisely to the manufacturer recommendation of 1.47 to 1.96 N-m. Check and retighten power terminals after the initial 24 hours of operation to correct for thermal settling of the wire.

Installation Guidelines

CRITICAL WARNING: Ensure all 3-phase AC main power supply breakers are isolated, locked out, and tagged before attempting electrical installation or physical service. Always use an appropriately rated voltage tester on all terminals to confirm the absence of power before handling cabling.

1

Mount the unit vertically onto a clean, unpainted segment of 35mm DIN rail, ensuring the heatsink fins run vertically to facilitate natural convective airflow.

2

Connect the safety earth ground terminal directly to the panel main earth bar using copper wire of adequate cross-section (minimum 4 mm2).

3

Wire the DC control inputs (A1 positive, A2 negative) from the PLC sourcing or sinking card using shielded, twisted-pair cables to mitigate nearby induction noise.

4

Route high-current 3-phase AC lines to terminals L1/L2 and load lines to terminals T1/T2, ensuring all terminations are firmly torqued to avoid resistance-induced hot spots.

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What is the physical meaning of the 2-element designation in G3PE-245B-2N?

The 2-element designation means that the device directly switches and controls two lines of a 3-phase system, while the third line bypasses the switching mechanism and connects directly. This setup is highly standard and efficient for balanced 3-phase delta heater loads.

How does the zero-cross function benefit industrial heating applications?

The zero-cross function ensures that the solid-state switching elements only trigger when the AC voltage waveform passes through zero. This minimizes rapid, steep rises in current, dramatically reducing radio-frequency interference and stress on the heating elements.

What are the spacing requirements when installing multiple solid-state contact units?

For optimal thermal performance and convective heat dissipation, maintain a minimum lateral spacing of 10 mm and a vertical spacing of 80 mm between adjacent units inside control enclosures.

Does this module require an external heatsink to achieve the rated 45 A current?

The G3PE-245B-2N is built with an integrated, high-efficiency heatsink, allowing it to sustain the rated 45 A load without additional heat dissipation plates, provided the surrounding ambient air does not exceed 40 degC.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Japan

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