Description
Emerson UES815S-24AR
Technical Specifications
- Input voltage: 85V AC to 264V AC, 50/60Hz
- Output voltage: 24V DC
- Rated output current: 15A
- Rated output power: 360W
- Cooling method: Natural convection cooling
- Operating temperature: 0°C to +60°C
- Storage temperature: -40°C to +85°C
- Relative humidity: 5% to 95%, non-condensing
- Protection class: IP20
- Mounting type: DIN 35mm rail mounting
- Status indicator: Power OK LED
Functional Features
- Wide AC input range adapts to industrial grid voltage fluctuation.
- Constant 24V DC output with tight voltage regulation for sensitive automation loads.
- Built-in complete protection: input undervoltage protection, output overvoltage protection, overcurrent protection, short circuit protection and overtemperature protection.
- Automatic recovery after fault condition clears.
- Power OK LED indicator shows normal output status for on-site inspection.
- Compact DIN rail design saves cabinet installation space.
- EMC performance meets industrial standard to resist surge and electromagnetic interference inside control cabinet.
Application Scenarios PLC cabinet, DCS remote I/O cabinet, sensor power supply, relay panel, factory automation control cabinet, water treatment control panel, packaging machine control system.
Performance Parameters
- Output voltage accuracy: ±1% full scale
- Line regulation: Less than 0.5% within full input voltage range
- Load regulation: Less than 0.8% across full load range
- Protection response time: Less than 20ms
Material Composition
- Housing: Cold rolled steel sheet with electrostatic spraying
- PCB: FR-4 flame retardant printed circuit board with conformal coating
- Power components: Industrial switching MOSFET, rectifier bridge and long-life electrolytic capacitor
- Terminal: Copper alloy screw clamping terminal
- LED indicator: Industrial high brightness LED
- DIN clip: High strength flame retardant nylon
Structural Characteristics Vertical rectangular modular structure. DIN rail clip is fixed on rear side. Front panel arranges AC input terminals, DC output terminals and power status LED. Internal layout separates power circuit and signal circuit to reduce electromagnetic crosstalk. No fan, heat dissipation relies on metal housing natural convection.
Working Principle AC mains enters input terminal and passes EMI filter circuit to suppress grid interference. The high frequency switching circuit converts AC to stable 24V DC output. Internal sampling circuit continuously monitors input voltage, output voltage, output current and internal temperature. When abnormal state occurs, protection circuit cuts off power output. After fault removal, module restores output automatically.
Installation Requirements
- Align DIN rail clip to DIN35 rail and snap the module firmly. Confirm no shaking.
- Connect AC input cable to input terminals, connect protective earth wire. Install matching fuse on input side.
- Connect DC output cable to output terminals, ensure cable cross-section matches rated current. Tighten all terminal screws.
- Leave minimum 25mm clearance around the module for heat dissipation. Do not block housing surface.
- Connect protective ground wire to cabinet grounding bar, grounding resistance less than 4 ohms.
- Check wiring before power on. Confirm no short circuit on DC output loop.
Usage Precautions
- Do not apply AC voltage beyond 85-264V range. Overvoltage destroys internal power components.
- Do not run output load over 15A rated current continuously. Overload accelerates capacitor aging.
- Only install inside control cabinet. Do not use in outdoor, high humidity or corrosive gas environment.
- Disconnect AC input and wait for capacitor discharge before disassembly during maintenance.
- Do not remove metal housing. Internal circuit contains high voltage. No field serviceable parts. Replace whole module upon failure.
- Regularly cut off power and blow dust from heat dissipation gap. Dust accumulation causes over temperature protection
