Everlight EDR-150-24

Technical Specifications

• Input voltage range: 90–264 V AC / 127–370 V DC
• Input frequency range: 47–63 Hz
• Output voltage: 24 V DC (adjustable ±10%)
• Output current: 6.5 A maximum at 230 V AC input
• Rated output power: 156 W at 230 V AC input
• Efficiency: 87% typical
• Ripple and noise: 150 mVp-p maximum
• Line regulation: ±0.5%
• Load regulation: ±1.0%
• Operating temperature: -40°C to +85°C with derating at high temperatures
• Withstand voltage: 3 kV AC input-to-output, 2 kV AC input-to-FG, 0.5 kV AC output-to-FG
• Dimensions: 40 mm × 125.2 mm × 113.5 mm
• Weight: 0.6 kg
• Cooling: Free air convection

Functional Features

• Comprehensive protection: Short circuit, overload, overvoltage, overtemperature protection
• Constant current limiting overload protection with automatic recovery
• Slim 40 mm width design for space-saving DIN rail installation
• DC OK LED indicator for output status monitoring
• Universal AC input range for worldwide application
• Compliance with IEC60068-2-6 vibration resistance standard
• Built-in EMI filtering for low electromagnetic interference

Application Scenarios

• Industrial automation control cabinet power supply
• PLC and sensor power distribution
• Building automation system power
• Electrical panel and switchgear auxiliary power
• Factory automation equipment power supply

Working Principle

The power supply adopts a flyback switching topology. Input AC voltage is first rectified and filtered into high-voltage DC, then chopped into high-frequency AC by a switching transistor controlled by a PWM controller. The high-frequency transformer steps down the voltage and provides electrical isolation. The output is then rectified, filtered, and regulated to provide stable 24 V DC output. The control loop continuously adjusts PWM duty cycle to maintain stable output voltage under varying input and load conditions.

Installation Requirements

• Mount on standard 35 mm DIN rail (TS35/7.5 or TS35/15)
• Ensure proper airflow around the unit for convection cooling
• Install with input terminals at the bottom and output terminals at the top for natural convection
• Use copper conductors with appropriate cross-section for input and output wiring
• Connect protective earth terminal securely
• Maintain minimum clearance from adjacent components for heat dissipation

Usage Notes

• Do not operate the unit beyond its rated output current for extended periods
• Output voltage adjustment should be performed with a calibrated voltmeter
• Inductive loads should be equipped with appropriate surge suppression
• Disconnect input power before performing wiring or maintenance
• Regularly clean dust from the unit’s ventilation openings to maintain cooling performance
• The unit must be derated according to ambient temperature per manufacturer specifications