Powtran PR5300 055G3N 55 kW / 380–440 V 3-Phase Intelligent Soft Starter with Integrated Bypass

Detailed Description

The Powtran PR5300 055G3N is a high-power three-phase intelligent soft starter, designed to smoothly start and stop motors rated at 55 kW within the 380–440 V AC range. It features an integrated bypass contactor, advanced control logic, comprehensive protection, and network communication capabilities—tailored for demanding industrial environments.

Key Features & Advantages

• Soft start / soft stop to reduce inrush current, minimize mechanical stress, and prevent voltage dips

• Integrated bypass contactor to switch the motor to full voltage once running, improving efficiency

• Versatile starting modes: voltage ramp, current limiting, kickstart, dual-loop control, etc.

• Full motor and system protection including over/under voltage, phase loss, imbalance, overcurrent, short circuit, overheating, stall protection, etc.

• Built-in RS-485 / Modbus RTU for remote monitoring, control, and integration

• Multilingual LCD + keypad interface for configuration, diagnostics, and status display

• Sturdy design with forced-air cooling and reliable performance in industrial settings

Technical Highlights

• Rated power: 55

• Typical rated current (for 55 kW at 380–440 V, 3-phase): approx. 110 A 

• Input / output voltage: 380–440 V AC, three-phase (motor side and supply side)

• Protection levels and soft starter functionalities per PR5300 series design 

• Environmental & installation guidelines per PR5300 manual (ambient temp, ventilation, clearance, etc.) 

Applications

This soft starter is ideal for:

• Large industrial motors (pumps, compressors, fans, blowers)

• Heavy machinery requiring smoother starts and stops

• Systems where motor protection and longevity are critical

• Integrated systems needing remote monitoring (via Modbus)

• Environments with high demands on reliability, power quality, and control