The GE EntelliGuard L (LG16S1) is a high-performance power circuit breaker engineered to provide superior protection, coordination, and reliability in low-voltage electrical distribution systems. Built with the advanced EntelliGuard trip unit technology, this 1600A breaker is designed to manage high fault currents while offering precise control over system tripping parameters. It is widely recognized for its ability to reduce arc flash energy, thereby enhancing safety for personnel working near energized switchgear.
📋 Product Specifications
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Model Series: EntelliGuard L
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Catalog Number: LG16S1 LTG00K9XXSFXXXX
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Rated Current (In): 1600A
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Mounting Type: Draw-out / Fixed (Dependent on specific configuration)
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Trip Unit Type: EntelliGuard TU
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Dimensions: 420 mm x 350 mm x 300 mm (approximate)
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Weight: 45 kg
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Country of Origin: USA
🌐 Application Fields
This circuit breaker is a primary component in commercial, industrial, and utility power distribution networks. It is frequently installed in:
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Switchgear and Switchboards: Serving as the main or feeder breaker for distribution systems.
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Mission-Critical Facilities: Data centers and hospitals where system reliability and selective coordination are essential.
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Heavy Industrial Plants: Protecting motors, transformers, and large busway systems against short circuits and overloads.
🛠️ Product Usage Instructions
Installation must be carried out by qualified electrical personnel in accordance with the manufacturer’s technical manual and local electrical codes. Ensure the breaker is in the “Trip” or “Disconnected” position before racking it into the switchgear cell. Verify that the secondary control connections are properly aligned and seated. Use the integral charging handle or motorized mechanism to charge the closing spring. Once charged, the breaker can be closed by pressing the local push-button or via remote shunt close command. Regularly check the EntelliGuard trip unit display for any active diagnostic alarms or trip history data.
❓ Frequently Asked Questions
Q: What does the “1600A” rating signify? A: This is the frame’s continuous current rating. It defines the maximum current the breaker can carry indefinitely without exceeding its thermal design limits, provided the trip unit is correctly configured.
Q: How does this breaker improve arc flash safety? A: The EntelliGuard trip unit features an “Instantaneous Trip” function and a selectable “Reduced Energy Let-Through” (RELT) setting. When activated, RELT significantly lowers the time required to clear a fault, thereby reducing the incident energy during an arc flash event.
Q: Is the trip unit field-replaceable? A: Yes, the EntelliGuard trip unit is designed for field replacement and upgradeability. However, any change to the trip unit requires proper testing and re-verification of the protection settings to ensure system coordination is maintained.
Q: What do the LEDs on the front panel indicate? A: The LEDs provide status updates on the “Breaker Status” (Open/Closed), “Spring Charge,” and any active “Trip” conditions (e.g., Long Time, Short Time, Instantaneous, or Ground Fault). Refer to the specific error codes in the technical manual if a fault LED is illuminated.
