Emerson SDN20-24-100C-EPM

Emerson SDN20-24-100C-EPM

Product Overview:
The Emerson SolaHD SDN20-24-100C-EPM is a high-performance industrial DIN rail power supply designed to convert AC input power to regulated 24 VDC output for industrial automation and control systems. This power supply delivers 480 W of continuous power with a 20 A output current, featuring active power factor correction and comprehensive protection circuits. It is designed for reliable operation in demanding industrial environments and carries multiple international safety and hazardous location certifications. The unit features a compact DIN rail mount design for easy installation in control cabinets and electrical enclosures.

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Description

Emerson SDN20-24-100C-EPM

Technical Specifications:

  • Brand: Emerson (SolaHD)
  • Model: SDN20-24-100C-EPM
  • Product Type: DIN Rail Switching Power Supply
  • Input Voltage: 100-240 VAC nominal
  • Input Frequency: 50/60 Hz nominal
  • Input Current: Less than 30 A inrush current
  • Power Factor: Greater than 0.92 with active PFC
  • Output Voltage: 24 VDC nominal (24-28 VDC adjustable)
  • Output Current: 20 A continuous
  • Output Power: 480 W continuous
  • Power Boost: 1.5 times nominal current for 4 seconds
  • Hold-up Time: Greater than 20 ms at full load at 25°C
  • Voltage Tolerance: Less than plus or minus 2 percent overall
  • Line Regulation: Less than 0.5 percent
  • Load Regulation: Less than 0.5 percent
  • Time and Temperature Drift: Less than 1 percent
  • Initial Voltage Setting: 24.5 V plus or minus 1 percent
  • Ripple: Less than 100 mV peak-to-peak
  • Power Back Immunity: 35 VDC
  • Overvoltage Protection: Greater than 30.5 VDC but less than 33 VDC with auto recovery
  • Parallel Operation: Switch selectable
  • Degree of Protection: IP20 per EN60529
  • Weight: 2.6 lb (1200 g)
  • Storage/Shipment Temperature: -40°C to +85°C
  • Full Nominal Load Temperature: -25°C to +60°C
  • Derating: Derate 480 W by 24 W per degree Celsius from +60°C to +70°C down to 240 W
  • Certifications: cULus Listed (UL 508, CSA C22.2 No. 107.1); UL 60950-1/CSA C22.2 60950-1; UL 60079-0, UL 60079-15 for hazardous locations; CE marked; ATEX II 3G Ex nA nC II C T4 Gc (DEMKO 14 ATEX 1350833U)
  • Emissions Compliance: EN61000-6-3, EN61000-6-4, Class B EN55011, EN55022, EN61000-3-2, EN61000-3-3
  • Immunity Compliance: EN61000-6-1, EN61000-6-2, EN61000-4-2 Level 4, EN61000-4-3 Level 3, EN61000-4-4 Level 4 input and Level 3 output, EN61000-4-5 Installation Class 4, EN61000-4-6 Level 3, EN61000-4-8, EN61000-4-11, SEMI F47 Sag Immunity
  • Transient Protection: Per VDE 0160/W2 over entire load range
  • Origin: United States

Functional Features:

  • Active Power Factor Correction: Power factor greater than 0.92 reduces harmonic distortion and improves electrical efficiency
  • Power Boost Capability: Delivers 1.5 times nominal current for 4 seconds to handle inrush currents from inductive loads during startup
  • Adjustable Output Voltage: Output voltage adjustable from 24 VDC to 28 VDC to compensate for voltage drop in long cable runs
  • Parallel Operation: Switch-selectable parallel operation allows multiple units to share load for increased capacity or redundancy
  • Comprehensive Protection: Includes overvoltage protection with auto recovery, reverse polarity immunity, and short circuit protection
  • Low Ripple Output: Less than 100 mV peak-to-peak ripple ensures clean power for sensitive electronic equipment
  • LED Diagnostics: Built-in LED indicators for input power, output voltage, and fault conditions
  • Wide Input Range: Accepts 100-240 VAC input for global deployment without manual voltage selection
  • High Efficiency: Efficient switching topology minimizes heat generation and energy losses
  • Conformal Coating: Internal circuitry protected against environmental contaminants

Application Scenarios:

  • Industrial automation control systems powering PLCs, HMIs, and I/O modules
  • Process control systems in chemical and petrochemical plants
  • Manufacturing automation equipment and machinery
  • Oil and gas processing facilities requiring hazardous location certification
  • Water and wastewater treatment plant control systems
  • Power generation control room equipment
  • Food and beverage processing automation
  • Pharmaceutical manufacturing equipment
  • Building automation and HVAC control systems
  • Transportation infrastructure control systems

Performance Parameters:

  • Continuous Output Power: 480 W
  • Maximum Output Current: 20 A at 24 VDC
  • Boost Current: 30 A for 4 seconds
  • Efficiency: High efficiency switching design minimizing heat generation
  • Voltage Regulation: Less than 0.5 percent line and load regulation
  • Transient Response: Fast response to load changes maintaining stable output
  • MTBF: High mean time between failures for continuous industrial operation

Material Composition:

  • Industrial-grade switching power supply components
  • High-frequency transformer with ferrite core
  • Electrolytic and ceramic capacitors for filtering
  • MOSFET switching transistors
  • Control IC with power factor correction
  • Copper screw terminals for input and output connections
  • Aluminum heat sink for thermal management
  • Steel DIN rail mounting clip
  • Polycarbonate or ABS plastic housing
  • Conformal coating on PCB for environmental protection
  • LED indicators for status display

Structural Features:

  • Compact DIN rail mountable design
  • Snap-on mounting to TS35/7.5 or TS35/15 DIN rail
  • Screw terminal connections for input and output wiring
  • Ventilation slots for passive cooling
  • LED status indicator panel on front face
  • Voltage adjustment potentiometer accessible from front
  • Parallel operation selector switch
  • Label with electrical ratings and certifications
  • Compact footprint minimizing control panel space
  • Robust metal and plastic construction

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