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Product Description
Structure and Features
The Automatic Transfer Switch is composed of 2 units of 3P or 4P mini circuit breakers, a mechanical chain transmission mechanism, and a controller. Key features include:
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Small in volume, simple in constitution; available in 3P and 4P configurations. Easy to operate with a long service life.
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Transfer switch driven by a single motor for smooth, noiseless operation with minimal impact.
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Equipped with both mechanical and electrical interlocking for reliable change-over, supporting manual or automatic operation.
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Integrated protections: short circuit, overload, over-voltage, under-voltage, loss of phase, and an intelligent alarm function.
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Automatic switching parameters can be adjusted externally.
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Includes a computer network interface for remote control, adjustment, communication, and sensing (four-control function).
Working Conditions
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Ambient air temperature: -5ºC to +40ºC (24h average not exceeding +35ºC).
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Installation altitude: No more than 2000 meters.
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Humidity: Max 50% at +40ºC; up to 90% at +20ºC. Precautions should be taken for condensation.
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Pollution level: Grade 3.
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Installation category: 3.
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Connection: Power lines connect to the upper side; load lines connect to the lower side.
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Environment: Free from significant vibration or impact.
Supplementary Explanation
• Manual mode is available for switching between power sources in special circumstances.
• Suitable for single-phase AC220V circuits; sources can be mains, generator, solar, or batteries (requires inverter for DC).
• This is a transfer switch, not a backup power source (cannot replace batteries).
• Designed for standard rail installation.
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Frequently Asked Questions
Can this switch be operated manually?
Yes, the NLQ4-125/3P features a direct handle for manual operation, allowing you to switch between common and backup power sources manually when needed.
What types of protection does this ATS provide?
It includes comprehensive protection features such as short circuit and overload protection, as well as over-voltage, under-voltage, and loss of phase detection.
Is it compatible with solar power systems?
Yes. It can be used with solar power, wind generation, or batteries. However, since it operates on AC 220V, DC power must be converted via an inverter before connection.
How is the NLQ4-125/3P installed?
The unit is designed for standard rail installation, making it easy to integrate into existing power distribution cabinets.
Does this unit support remote monitoring?
Yes, it comes with a computer network interface that supports remote control, remote adjustment, and remote communication for intelligent power management.
Globe Hardware
