2026-09-07Author: smart-ai

Using the ELEJG JGXZ-63 as an example, this article explains in plain language the functional boundaries, key selection factors, and common misconceptions of dormitory smart power-limiting controllers, helping you properly configure a dormitory power management solution.

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2026-04-14Author: 江光电气

An electric arc, simply put, is electricity "jumping" like a spark. Under normal conditions, current flows steadily along the wire, but when wire insulation ages or becomes damaged, or when connections come loose or make poor contact, the current takes "the road less traveled"—leaping across an air gap and forming a bright spark. That's what an electric arc is.

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2026-03-07Author: 江光电气

Selective Power Limiting Protector, Dormitory Current Limiting Protector, Electronic Load Limiting Protector

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2025-12-03Author: 江光电气

Do you think you're safe just because your home has circuit breakers and residual current devices (RCDs)? In fact, an even more hidden “arsonist” is lurking in the wiring—an arc fault. It isn’t as obvious as an overload or electrical leakage, but it’s often the culprit behind fires.

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2025-04-22Author: 江光电气

Self-Recovering Over/Under Voltage Protector (OUPA) Installation Guide I. Pre-Installation Preparation Model Selection and Parameter Confirmation For household single-phase circuits, choose the 2-pole (1P+N) type; for three-phase circuits, choose the 4-pole (3P+N) type. The rated voltage must match household power distribution (230V single-phase / 400V three-phase), and the current rating must be ≥ the rated current of the main switch. Choose an integrated design with DIN rail mounting—no additional operating handle required. Tools and Safety Preparation Turn off the main power supply and verify de-energization with a voltage tester.

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2025-04-22Author: 江光电气

Auto-reclosing overvoltage and underVoltage Protector, overvoltage and underVoltage Protector, time-delay overvoltage and underVoltage Protector, function of underVoltage Protector, overvoltage and undervoltage protection, how to install an auto-reclosing overvoltage and underVoltage Protector, overvoltage and undervoltage leakage protector

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2025-04-19Author: 江光电气

How to Set Up the Three-Display Control and Protection Switch (Setting Method for CPS Control and Protection Switch) Function Parameter Settings 1. Press the data key for 2 seconds to enter the menu settings. Use the data key and shift key to enter the password, then press the set key once to confirm the password. 2. Enter the parameter settings and use the data key and shift key to set the parameters. 3. Press the set key to proceed to the next parameter setting. 4. After all parameters have been set, press the reset key for 2 seconds to save and exit, returning to the real-time display. Protection Parameter Settings 1. Press the set key

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2025-04-15Author: 江光电气

For the electrical environments of construction sites and student dormitories, I recommend our JGXZ Series Selective Power-Limiting Protector. This product offers multiple protection functions, including overvoltage, undervoltage, short circuit, leakage, temperature, frequency, and energy metering, making it ideal for school dormitories, rental housing, construction sites, and similar applications. Features of the JGXZ Series Selective Power-Limiting Protector include: modular, intelligent, and visual design: the product has a compact structure and is easy to install

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2025-04-15Author: 江光电气

An underVoltage Protector is a smart device mainly used in power distribution systems for homes and shopping malls,

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2025-03-15Author: 江光电气

The application of current-limiting fire protection devices in various settings is not only an investment in safety, but also a commitment to the future. With precision and high efficiency, it builds impenetrable lines of defense in homes, commercial spaces, industrial facilities, and even the digital realm.

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