1. Basic Information

• Model: MPB51A055-503 (full model: MPB51A055-503-00)

• Brand: SEW-EURODRIVE (Germany)

• Series: MOVIDYN 51 (Servo Power Supply Module)

• Rated Power: 55 kW

• Rated Output Current: 80 A

• Input Voltage: 380–500 VAC, 3-phase, 50/60 Hz

• DC Bus Voltage: 550–700 VDC

• Protection Degree: IP20 (unit); IP65 with matching enclosure

• Dimensions (W×H×D): 140 × 180 × 120 mm

• Weight: Approx. 7 kg

2. Core Functions & Key Features

2.1 High-Power Stable Power Supply

• Optimized for 55kW-class servo systems, providing a clean, stable DC bus for multi-axis servo drives.

• Supports common DC bus architecture — multiple axes share one power supply, reducing energy consumption and redundant hardware.

2.2 Industrial-Grade Reliability

• Wide input voltage tolerance (380–500 VAC), compatible with global industrial grids.

• Comprehensive protection: overvoltage, undervoltage, overcurrent, overload, overtemperature, and earth fault protection.

• Industrial EMC design with strong noise immunity, suitable for harsh environments.

2.3 Compact & Easy Installation

• Space-saving, lightweight design; supports 35 mm DIN rail or wall mounting.

• Vertical installation required; allow 100 mm clearance top/bottom, 50 mm left/right for cooling.

2.4 Flexible Connectivity

• X1 (Main Power): L1/L2/L3 (3-phase in), PE (ground), DC+/DC- (DC bus out), BR (external brake resistor).

• X2 (Digital I/O): 6 digital inputs for signal detection and logic control.

• X3 (Communication): System bus interface for parameter setup and data exchange with servo axes and controllers.

3. Typical Applications

• Industrial automation production lines

• Material handling & intralogistics

• CNC machinery & machine tools

• Packaging & processing equipment

• Robotics & motion control systems

4. Summary