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Yokogawa SD1050A04-2SN
Product Category: Redundant/Non-Redundant Power Supply Unit
Product Overview:
The SD1050A04-2SN is a 24 VDC power supply module designed for the CENTUM VP and CS3000 Distributed Control Systems (DCS) manufactured by Yokogawa. It provides regulated 24 VDC output at 4 Amperes to power I/O cards, communication modules, and field instruments within the DCS I/O station.
Detailed content
Technical Specifications:
- Model Code: SD1050A04-2SN
- Output Voltage: 24 VDC (±5%)
- Output Current: 4 A (maximum)
- Output Power: 96 W (maximum)
- Input Voltage: 100 VAC to 240 VAC (50/60 Hz) or 24 VDC (optional)
- Input Frequency: 50 Hz / 60 Hz (auto-detection)
- Efficiency: ≥ 85% (typical at full load)
- Ripple & Noise: ≤ 150 mVp-p
- Isolation Voltage: 1500 VAC (input to output, 1 minute)
- Operating Temperature Range: 0°C to +55°C
- Storage Temperature Range: -20°C to +70°C
- Relative Humidity: 5% to 95% RH (non-condensing)
- Protection Features: Overcurrent protection, overvoltage protection, short-circuit protection, thermal shutdown
- MTBF (Mean Time Between Failures): ≥ 100,000 hours
- Dimensions (W × H × D): 25 mm × 90 mm × 100 mm (approx.)
- Weight: Approximately 200 g
- Mounting Method: DIN rail (35 mm) mounting
Functional Features:
- Provides stable 24 VDC to all I/O cards in the CENTUM VP I/O station
- Built-in overcurrent protection with automatic recovery
- LED indicators: POWER (green), FAULT (red)
- Supports hot-swap capability in redundant configurations
- Compatible with CENTUM VP I/O stations (AIH, AOH, ASH, etc.)
Structural Features:
- Metal housing with ventilation slots for forced-air cooling
- Terminal block connectors for AC input and DC output
- Front-facing LED status display
- Screw-type DIN rail mounting bracket
Applicable Industries:
Oil & Gas, Petrochemical, Power Generation, Chemical Processing, Water Treatment, Steel Manufacturing, Pulp & Paper
Installation Requirements:
- Install in CENTUM VP I/O station with adequate ventilation
- Connect AC power input with proper circuit breaker (rated ≥ 5 A)
- Wire DC output terminals using wire gauge AWG 14 to AWG 22
- Ensure cabinet earth grounding is connected to chassis ground terminal
Precautions:
- Do not exceed 4 A output current to prevent damage
- Verify input voltage range matches local power supply (100-240 VAC)
- Allow minimum 10-minute warm-up before loading full current
- Replace fuse only with Yokogawa-specified fuse (T3.15A, 250V)
