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ABB DSSR116 Power Supply Unit  

1. Key Parameters

• Product Model: DSSR116
• Product Series: ABB AC500 Series Industrial Entry-Level Power Supply Units (Light-Load DC Distribution)
• Core Function: Converts 100V~240V AC mains to regulated 24V DC for AC500 micro PLCs and small automation components; provides overload, short-circuit, and over-temperature protection; supports DIN rail mounting for compact cabinets; delivers low-ripple output for sensitive low-power sensors; ensures basic energy efficiency for continuous operation
• Electrical Specifications:

  Parameter	Details	Performance Metrics
  Input Characteristics	- Input Voltage Range: 100V~240V AC (50Hz/60Hz, auto-adaptive) - Input Current: Max 0.8A (100V AC); Max 0.4A (240V AC) - Input Protection: Basic surge protection (IEC 61000-4-5, 1kV); Brownout tolerance (85V AC~100V AC, 2s hold-up) - Power Factor Correction (PFC): Passive PFC (PF ≥0.8 at full load)	Auto-adaptive input works with global AC mains (no manual voltage switching), ideal for international small-project deployments; 1kV surge protection withstands minor grid fluctuations (e.g., household appliance startup); passive PFC meets basic commercial/industrial power quality requirements
  Output Characteristics	- Output Voltage: 24V DC ±3% (regulated; no optional voltage variants) - Output Current: Max 2.5A - Output Power: 60W (24V DC × 2.5A) - Voltage Regulation: ±1.0% (line regulation); ±1.5% (load regulation) - Ripple & Noise: ≤100mVpp (20MHz bandwidth)	60W output powers small AC500 setups (e.g., 1× DSPC100 micro PLC + 2× DSMB178 digital I/O modules + 6× photoelectric sensors); ≤100mVpp ripple ensures stable operation of low-power sensors; 2.5A current suits light-load clusters without overcapacity waste

• Mechanical & Environmental Specifications:

  Parameter	Details	Performance Metrics
  Mechanical Design	- Dimensions: 60mm (W) × 90mm (H) × 110mm (D) - Mounting Type: DIN rail mount (EN 50022, 35mm, snap-on) - Housing Material: Flame-retardant thermoplastic (UL 94 V0) - Weight: Approximately 300g - Indicators: 1× AC input LED (green = input active); 1× DC output LED (green = output normal, red = fault)	Ultra-compact 60mm width saves 60% cabinet space vs. standard 60W power supplies; fits in narrow enclosures (e.g., 19-inch 1U sub-panels, wall-mounted building automation boxes); snap-on DIN rail design enables tool-less installation
  Environmental Ratings	- Operating Temperature Range: -15℃~+55℃ (5℉~131℉) - Storage Temperature Range: -40℃~+85℃ (-40℉~185℉) - Humidity Tolerance: 5%~95% RH (non-condensing, 40℃) - Vibration Resistance: 10~500Hz, 0.5g acceleration (IEC 60068-2-6) - Shock Resistance: 10g (11ms half-sine, IEC 60068-2-27) - EMC Compliance: EN 61000-6-2 (immunity: Level 2); EN 61000-6-3 (emission: Class B)	-15℃~+55℃ range suits temperature-controlled industrial spaces and commercial buildings; Level 2 EMC immunity resists interference from small motors (e.g., ventilation fans) and office equipment; vibration resistance prevents loose connections in lightweight cabinets

• Protection & Compliance Specifications:

  Parameter	Details	Performance Metrics
  Protection Features	- Overload Protection: 110%~140% load (hiccup mode, auto-recovery) - Short-Circuit Protection: Current limiting (≤3.5A) (hiccup mode, auto-recovery) - Over-Temperature Protection: 70℃ ±5℃ (thermal shutdown, auto-recovery when cooled) - Reverse Polarity Protection: Diode-protected (output terminals)	Hiccup-mode protection auto-recovers from temporary faults (e.g., momentary sensor short circuits); thermal shutdown prevents damage from cabinet heat buildup (common in small, unventilated enclosures); reverse polarity protection avoids wiring errors from damaging connected PLCs
  Compliance Standards: CE, UL 508, CSA C22.2 No.14, IEC 61558-2-1 (power supplies), IEC 61000-6-2 (EMC), RoHS 2.0, ISO 9001

2. Core Features

• Ultra-Compact Light-Load Design: 60W output in a 60mm-wide DIN rail form—optimized for small AC500 setups (e.g., micro PLCs + 2~3 I/O modules); fits in the narrowest industrial/commercial enclosures (e.g., 1U 19-inch sub-panels, wall-mounted building automation boxes), eliminating the need for oversized cabinets and reducing installation costs.
• Global AC Compatibility: 100V~240V AC auto-adaptive input—works with mains voltages worldwide (100V Japan, 230V Europe, 120V North America) without manual switching; ideal for small international projects (e.g., exportable manufacturing workstations) where power standards vary.
• Essential Protection for Light Loads: Overload/short-circuit/over-temperature/reverse polarity protection—covers common faults in small automation systems (e.g., frayed sensor wires, accidental output shorting); hiccup-mode auto-recovery avoids manual resets for temporary issues, reducing maintenance interruptions.
• Cost-Effective Efficiency: 85% peak efficiency (at 50%~75% load)—balances energy savings and affordability for light, continuous loads (e.g., $10~$25/year in energy savings vs. low-efficiency alternatives); passive cooling (no fans) eliminates maintenance needs (no cleaning/replacement) and reduces failure points.
• Simplified Installation & Troubleshooting: Tool-less snap-on DIN rail mounting + 2-color LEDs—installs in <1 minute (no brackets or tools); green/red LEDs provide clear status feedback (green = normal, red = fault), enabling on-site technicians to quickly identify issues (e.g., over-temperature from blocked vents).
• Seamless AC500 Micro Integration: Regulated 24V DC output optimized for AC500 micro PLCs (e.g., DSPC100, DSPC110)—no voltage adjustment needed; standard terminal blocks accept 20AWG~16AWG wires, matching the wire gauge of small sensor/PLC connections; compatible with all AC500 low-channel I/O modules (e.g., DSMB178 16-channel digital I/O).
• Entry-Level Affordability: Designed for budget-conscious small projects—delivers reliable industrial-grade performance at a lower cost than high-power alternatives; ideal for startups, small manufacturers, or retrofits of legacy systems where power needs are minimal but reliability is non-negotiable.

3. Application Fields

• Small Manufacturing: Micro PLC Power:
  • Electronics Workstations: Powers AC500 micro PLCs (e.g., DSPC100) for manual assembly line control—24V 2.5A output supplies 1× PLC + 2× DSMB178 digital I/O modules + 6× photoelectric sensors (part presence detection); ultra-compact design fits in bench-top control boxes; low ripple avoids false triggers during small-part assembly.
  • Food Packaging Small Lines: Supplies power to AC500 micro PLCs for snack packaging machines—24V output controls 4× solenoid valves (sealing, cutting) and 2× limit switches (package alignment); flame-retardant housing meets food industry safety standards; 1kV surge protection withstands voltage spikes from nearby refrigeration units.
• Building Automation: Sub-Panel Power:
  • Office HVAC Zones: Powers AC500 micro PLCs for small HVAC sub-zones (e.g., conference rooms)—24V output supplies 1× PLC + 3× temperature/humidity sensors + 2× damper actuators; compact design fits in wall-mounted sub-panels; 85% efficiency reduces building energy costs for distributed zone control.
  • Retail Store Lighting Control: Provides power to AC500 micro PLCs for aisle lighting management—24V output controls 4× relay outputs (light switching) and 2× photo sensors (dusk/dawn detection); EMC compliance avoids interference with POS systems; DIN rail mounting simplifies integration into existing electrical panels.
• Utility & Infrastructure: Auxiliary Controls:
  • Small Water Pumps: Powers AC500 micro PLCs for residential well pump control—24V output supplies 1× PLC + 2× float switches (tank level) + 1× pump relay; -15℃~+55℃ range suits outdoor pump enclosures; short-circuit protection avoids damage from water-induced wiring faults.
  • Street Light Auxiliaries: Supplies power to AC500 micro PLCs for street light status monitoring—24V output powers 3× current sensors (light load) and 1× communication module (status reporting); compact design fits in pole-mounted junction boxes; low idle power (<0.5W) reduces municipal energy costs.
• Renewable Energy: Small-Scale Systems:
  • Residential Solar Micro-Inverters: Powers AC500 micro PLCs for solar system monitoring—24V output supplies 1× PLC + 2× voltage/current sensors (panel output) + 1× WiFi module (data upload); auto-adaptive AC input handles variable grid voltage from solar inverters; passive cooling avoids fan clogging from outdoor dust.
  • Small Wind Turbines (1~3kW): Provides power to AC500 micro PLCs for turbine auxiliary control—24V output monitors 2× wind speed sensors + 1× brake actuator; vibration resistance (0.5g) withstands turbine operation; over-temperature protection avoids damage in hot nacelle enclosures.

The structure and details of the product：

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