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B&R 3BP151.4

Model Series: 3BP (Power Supply for X20 I/O Systems)

Product Overview:
The 3BP151.4 is a 24 V DC / 120 W switch-mode power supply from B&R’s 3BP product line, specifically designed to power B&R X20 I/O modules and X20 bus components. It features a universal AC input and provides a stable 24 V DC output with comprehensive protection features.

Detailed content

Technical Specifications:

  • Output Voltage: 24 V DC (adjustable ±5%)
  • Output Current: 5.0 A (continuous)
  • Output Power: 120 W (maximum)
  • Input Voltage Range: 100 V AC to 240 V AC (single-phase, 50/60 Hz)
  • Input Frequency: 50 Hz / 60 Hz (auto-sensing)
  • Efficiency: Greater than 88% (at full load)
  • Output Ripple: Less than 100 mV peak-to-peak
  • Output Noise: Less than 50 mV RMS
  • Protection Features: Short-circuit protection, overcurrent protection, overvoltage protection, overtemperature protection
  • DC OK Relay: 1 × changeover contact, 250 V AC / 3 A
  • Protection Rating: IP20
  • Operating Temperature: 0 °C to +50 °C (derating above +40 °C)
  • Storage Temperature: -25 °C to +70 °C
  • MTBF: Greater than 100,000 hours (at 25 °C)
  • Dimensions (W × H × D): Approximately 50 mm × 120 mm × 80 mm
  • Weight: Approximately 0.45 kg
  • Mounting: DIN rail TS 35
  • Safety Certifications: CE, UL, cUL, CCC

Functional Features:

  • Universal AC input (100–240 V AC) for global deployment
  • DC OK relay for system-level fault monitoring
  • LED power status indicator
  • High efficiency reduces thermal load in control cabinet
  • Conformal coated PCB for enhanced reliability in harsh environments

Applicable Industries:
Industrial automation, machine building, process control, packaging, material handling, OEM equipment.

Installation Requirements:

  • Mount on DIN rail TS 35
  • AC input: L, N, PE terminals (wire size: 1.5 mm² minimum)
  • DC output: +V, -V terminals (wire size: 2.5 mm² minimum for 5 A)
  • DC OK relay: wire to PLC input for fault detection
  • Maintain 10 mm minimum clearance on all sides for ventilation

Usage Notes:

  • Derate output current by 2% per °C above +40 °C ambient
  • Always connect protective earth (PE)
  • DC OK relay must be monitored by controller for fault response
  • Do not block ventilation openings

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