X20 PS 4951 - System Power Supply Technical Specifications
General Information
Manufacturer: B&R Industrial Automation

Series: X20 System

Module Type: System Power Supply

Part Number: X20 PS 4951

Safety Standards: EN 61010-1, UL 61010-1

Electrical Parameters
Input Voltage Range: 100-240V AC (85-264V AC full range)

Input Frequency: 47-63Hz

Output Voltage: 24V DC regulated

Output Current: 5A continuous (120W)

Power Factor: >0.95 (at full load)

Inrush Current: <20A (at 230V AC)

Efficiency: 89% typical

Protection Features
Overvoltage Protection: Automatic shutdown

Overcurrent Protection: Constant current limiting

Short-Circuit Protection: Hiccup mode auto-recovery

Over Temperature Protection: Thermal shutdown with auto-restart

Mechanical Specifications
Dimensions: 126 x 70 x 117mm (WxHxD)

Weight: Approx. 0.8kg

Cooling: Convection cooling (fanless)

Mounting: DIN rail mounting (35mm)

Environmental Conditions
Operating Temperature: -25°C to +60°C

Storage Temperature: -40°C to +85°C

Relative Humidity: 5-95% non-condensing

Altitude: Up to 2000m without derating

Certifications
Safety: EN 61010-1, UL 61010-1

EMC: EN 61326-1

Others: CE, cULus, RoHS compliant

Connection Specifications
Input Connection: Screw terminal block

Output Connection: Screw terminal block

Status Indication: LED (power good)

Reliability Data
MTBF: >150,000 hours at 40°C ambient

Warranty: 3 years