B&R 3BP152.4
Model Series: 3BP (Power Supply for X20 I/O Systems)
Product Overview:
The 3BP152.4 is a 24 V DC / 240 W switch-mode power supply from B&R’s 3BP product line, designed for higher-power X20 I/O system configurations requiring more current for multiple I/O modules, servo drives, and additional field devices. It provides regulated 24 V DC output with universal AC input and full protection features.
Detailed content
Technical Specifications:
- Output Voltage: 24 V DC (adjustable ±5%)
- Output Current: 10.0 A (continuous)
- Output Power: 240 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 90% (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, no-load 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 75 mm × 120 mm × 100 mm
- Weight: Approximately 0.85 kg
- Mounting: DIN rail TS 35
- Safety Certifications: CE, UL, cUL, CCC
Functional Features:
- Universal AC input (100–240 V AC)
- 10 A continuous output — supports large X20 I/O configurations
- DC OK relay for system fault monitoring
- LED power status indicator (green = OK, red = fault)
- High efficiency (>90%) minimizes heat generation
- Conformal coated PCB for industrial environment durability
Applicable Industries:
Large-scale machine building, packaging lines, process plants, automotive, semiconductor, food and beverage, pharmaceutical, water treatment.
Installation Requirements:
- Mount on DIN rail TS 35
- AC input wiring: L, N, PE — wire size minimum 2.5 mm² (for 10 A output capability)
- DC output wiring: +V, -V — wire size minimum 4 mm² (for 10 A)
- DC OK relay: wire to PLC digital input for fault monitoring
- Maintain minimum 15 mm clearance on all sides for ventilation (higher power = more heat)
- Forced-air cooling recommended in enclosed cabinets above +40 °C
Usage Notes:
- Derate output current by 2.5% per °C above +40 °C ambient
- Protective earth (PE) connection is mandatory at all times
- Do not exceed 240 W total load on output terminals
- DC OK relay status must be part of safety or fault-handling logic in the PLC program
- Use torque-controlled screw terminals per manufacturer specification (typically 0.8 Nm)












