Urban Street Light Dynamic Energy-Saving Control Device LDJD-150Aachieves hardware modularization, configuration, and equipment integration. It enables intelligent monitoring of street light illumination rates and terminal operational data, along with control over light-on and light-off times. Supports two wireless solutions (self-built radio station and information transmission). Enables digital communication compatibility and fault alarm functionality. Features multiple protections such as lightning protection and surge suppression, ensuring operational reliability. All data collection is highly accurate and dependable. Rated operating current of the energy-saving device system (Amps): 20A, 30A, 40A, 45A, 50A, 60A, 63A, 80A, 100A, 120A, 125A, 150A, 160A, 170A, 180A, 190A, 200A, 250A, 300A, 315A, 400A;

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Urban Street Light Dynamic Energy-Saving Control Device LDJD-150A Technical Specifications:
Operating Voltage: 220V±20% AC, 50Hz/60Hz, 220V±20% DC;
Rated Operating Current (per phase): 20A, 30A, 40A, 50A;
Voltage Setting Range: 170V - 255V;
Output Voltage Accuracy: ±15%;
Timing Accuracy: ±1 second;
Clock Accuracy: ±50ppm;
Full Voltage Preheating Start Time: 1-9 minutes adjustable;
Overload Capacity: Continuous overload up to 30% for extended periods;
Cooling: Forced air cooling;
Operating Environment: Free of corrosive gases and dust;
Operating Temperature: -10℃ to +55℃ (special requirements must be specified);
Storage Temperature: -55℃ to +80℃;
Relative Humidity: ≤95%

Product Performance Features:
Motor temperature and noise reduction, reliable operation;
Time-based control: The intelligent street light energy-saving controller can operate based on time segments, meeting control requirements for different types of street lights.
Twilight time control function: Automatically turns lighting fixtures on/off based on urban twilight variations.
Adaptive voltage regulation during startup: The microprocessor automatically identifies load characteristics during startup to control voltage and current rise rates, ensuring optimal conditions when activating lights.

Urban Street Light Dynamic Energy-Saving Control Device LDJD-150A Installation Guidelines:
1. Install indoors or on platform boxes, with a minimum height of 20 cm above ground level;
2. Ambient temperature: -10°C to +40°C, relative humidity not exceeding 85%; avoid flammable, explosive, and corrosive gases;
3. Avoid environments with water droplets, steam, or oily dust;
4. Installation site should be vibration-free;
5. Ensure secure installation with reliable grounding of the device enclosure; vertical tilt should not exceed 5 degrees;
6. Maintain sufficient heat dissipation and maintenance space around and above the energy-saving device;
7. Before powering on, thoroughly inspect all wiring connections to ensure they are secure and in good condition; the air switch should be in the off position.
Note: This product is only intended for uses approved in this manual. Unapproved applications may cause fires, electric shocks, or other hazards.
Customers with special usage requirements should consult with our company before placing orders.
Main circuit operation process:
1. First, using a high-precision timer, automatically adjusts daily on/off times according to seasonal changes.
2. When the timer activates the main circuit to supply power for lighting, the first 5-8 minutes (pre-set) operate at full voltage to ensure proper bulb preheating and normal operation.
3. After the preheating phase, the microprocessor controls the thyristor phase shift to smoothly enter the ramp-down period, then automatically switches to primary energy-saving mode for stable operation.
4. For road lighting control, given reduced traffic late at night, besides primary energy-saving levels, secondary energy-saving levels are recommended for late-night operation to achieve better power savings.