TDK-Lambda RM15-2R0GB

Core Technical Performance Parameters

Input Specifications

• Input Voltage Range: 85–132 V AC single phase (110 V nominal)
• Input Frequency: 47–440 Hz wide frequency support
• Max Input Apparent Power: 80 VA at full load
• Built-in Input Fuse: 3.15 A slow blow internal fuse
• Max Inrush Current: 17 A peak at 25 °C cold start
• Max Leakage Current: 0.5 mA typical, 0.3 mA minimum

Output Specifications

• Rated Output Voltage: 15 V DC
• Rated Output Current: 2.0 A
• Rated Full Output Power: 30 W
• Output Voltage Adjustable Range: ±10% via front panel potentiometer
• Ripple & Noise: Max 50 mV peak-to-peak under 20 MHz bandwidth
• Line Regulation: ≤0.5% full input voltage range
• Load Regulation: ≤0.5% 0–100% load variation
• Minimum Load Requirement: 0 A no-load stable operation

Protection & Environmental

• Protection Modes: Overvoltage protection (120–150% Vout), constant current overload protection, auto-recovery short-circuit protection, reverse polarity input protection
• Efficiency: 75% typical at 230 V AC full load
• Operating Temperature: 0 °C to +50 °C full power; derate output current above 50 °C
• Storage Temperature: -20 °C to +85 °C
• Isolation Strength: Input to output 4300 V DC reinforced isolation
• Safety Certification: UL, CSA, CE, IEC 60950-1 industrial safety standard
• Overall Dimensions: Standard compact RM series cabinet power supply form factor
• Net Weight: 0.32 kg

Function & Feature Highlights

1. Universal wide AC input frequency range compatible with global industrial power grid specifications
2. Zero minimum load stable operation, can work under no-output load standby state without voltage drift
3. Automatic recovery short-circuit protection; power supply restores normal output after short circuit fault removed
4. Reinforced 4.3 kV input-output isolation meets industrial safety separation requirements for control cabinet circuits
5. Low leakage current design suitable for medical and marine low electromagnetic interference control systems
6. Built-in input surge suppression circuit to resist industrial grid voltage transient spikes
7. Long-life high-temperature electrolytic capacitors with 10-year service life design under rated operating temperature
8. Front panel DC voltage adjustment potentiometer for fine-tuning output voltage to match load equipment requirement

Working Principle

1. AC grid input passes through EMI filter and rectifier bridge to convert alternating current into high voltage direct current.
2. High-frequency switching MOSFET and high-frequency transformer execute voltage step-down isolation conversion via pulse width modulation control loop.
3. Secondary side rectifier and LC filter circuit smooth high-frequency pulse voltage into stable 15 V DC low ripple output.
4. Feedback sampling circuit continuously monitors output voltage value, adjusts PWM switching duty cycle to maintain constant output voltage under input voltage fluctuation and load variation.
5. Independent protection monitoring circuit tracks output voltage, current and input polarity; triggers switching tube shutdown to cut output power when abnormal state detected.

Material & Structural Composition

• Outer Housing: Black galvanized steel sheet anti-rust coated metal enclosure
• Main PCB: FR4 high-temperature fiberglass circuit board
• Power Switching Components: High efficiency MOSFET switching tubes, high-frequency ferrite transformer core
• Energy Storage Components: High-temperature long-life aluminum electrolytic capacitors
• EMI Filter: Multi-stage common mode and differential mode inductor filter coils
• Adjustment Component: Carbon film precision trimming potentiometer for output voltage fine tuning
• Terminals: Tin-plated copper screw input/output terminal blocks

Installation Requirements

1. Standard vertical cabinet mounting, maintain 20 mm top and bottom vertical clearance for natural convection heat dissipation
2. Install in ventilated cabinet area, avoid mounting adjacent to heat generating equipment (transformers, servo drives)
3. Input and output wiring adopt separate cable routing to avoid electromagnetic coupling interference
4. Input AC wiring must match rated current specification, use minimum 1.0 mm² cross-section copper wire
5. Ground terminal must connect to cabinet protective earth ground to meet safety isolation standard

Application Scenarios

• Industrial PLC, DCS remote I/O module auxiliary power supply
• Marine automation control panel low-power sensor power source
• Electronic test equipment bench control circuit power supply
• Security monitoring industrial camera and signal converter power supply
• Small servo valve proportional amplifier control power supply

Operation & Maintenance Precautions

1. Do not operate continuously above 50 °C ambient temperature without output power derating, will accelerate capacitor aging
2. Short-circuit test shall not exceed 10 seconds continuous duration; repeated long short-circuit will damage internal power switching components
3. Input AC voltage shall not exceed 132 V AC maximum rating, overvoltage will blow internal input fuse
4. Do not block housing ventilation slots with cables or wiring accessories, insufficient heat dissipation causes overheating shutdown
5. Conduct annual dust cleaning of ventilation slots to maintain natural cooling performance