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G9TB-U1ATW-E DC12

SKU: G9TB-U1ATW-E DC12

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OMRON ELECTRONIC COMPONENTS Power/Signal Relay (Part Number: G9TB-U1ATW-E DC12)

Introducing the high-performance G9TB series power/signal relay manufactured by OMRON ELECTRONIC COMPONENTS, designed for demanding switching applications. This relay features a compact design combined with high current capacity, making it suitable for smart meters, lighting control, PV inverters, and EV chargers.

Key Features

  • High Power Switching: Capable of switching up to 120 A at 276 VAC, suitable for heavy-duty applications.
  • Compact Size: Dimensions of 37 mm × 43 mm × 22 mm facilitate easy integration into various systems.
  • Low Temperature-Rise: Ensures reliable operation with minimal heat generation.
  • High Overcurrent Capability: Conforms to IEC62055-31 UC3 standards, supporting robust performance under overcurrent conditions.
  • RoHS Compliant: Meets environmental standards for hazardous substances.

Product Specifications

Parameter Details
Part Number G9TB-U1ATW-E DC12
Manufacturer OMRON ELECTRONIC COMPONENTS
Country of Origin Indonesia (ID)
UOM EA (Each)
ECCN EAR99
Package Type Flux protection, M8 securing screw terminals
Datasheet Download Datasheet

Electrical Ratings

Item Single-winding Latching Double-winding Latching
Rated Voltage (VDC) 12 12
Rated Current (mA) 225 451
Coil Resistance (Ω) 53.3 26.6 (set/reset coils)
Power Consumption Approx. 2.7 W Approx. 5.4 W
Contact Resistance 0.4 mΩ max
Rated Load 120 A at 276 VAC (Resistive)
Max Switching Voltage 276 VAC
Max Switching Current 120 A

Operational Characteristics

  • Set Time: ≤ 25 ms
  • Reset Time: ≤ 25 ms
  • Minimum Pulse Width: 100 ms
  • Maximum Pulse Width: 1,000 ms
  • Insulation Resistance: ≥ 1,000 MΩ
  • Dielectric Strength: 4,000 VAC (coil to contacts), 2,000 VAC (contacts of same polarity)
  • Impulse Withstand Voltage: 8 kV
  • Vibration Resistance: 10-55 Hz, 0.75 mm amplitude
  • Shock Resistance: 1,000 m/s² (destruction), 100 m/s² (malfunction)
  • Durability: Mechanical: ≥ 100,000 operations; Electrical: ≥ 10,000 operations

Dimensions & Internal Connections

Refer to the datasheet for detailed dimensions and terminal arrangements:

G9TB Series Datasheet

Safety & Usage Precautions

  • Ensure correct wiring to prevent circuit failure due to contact polarization.
  • Install in dry, dust-free environments to maintain performance.
  • Use appropriate torque (8.82 to 9.80 N·m) when tightening screws.
  • Avoid energizing both set and reset coils simultaneously.
  • Do not energize coils longer than 1,000 ms to prevent damage.

For more detailed specifications and application guidelines, please refer to the datasheet.

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