PR380 8-Channel 20kW Three-Phase Power Sequencer Controller for Professional Audio Systems
Product Overview
The PR380 is a professional 8-channel power sequencer controller designed for large-scale PA systems, stage audio equipment, touring sound systems, and fixed installations. With a total power capacity of 20kW, it provides safe, stable, and intelligent power management for amplifiers, processors, active speakers, lighting equipment, and other professional audio devices.
Powered by an MCU control system, the PR380 offers accurate programmable delay sequencing, real-time voltage monitoring, overload voltage alarm, emergency shutdown, and password protection. It supports biphase and three-phase power input, making it suitable for different power environments and professional installation requirements.
With independent EMI power filters on each channel, remote control capability up to 1 km, Link In / Link Out connection, and a clear LED operation interface, the PR380 helps protect equipment, reduce power-on impact, and improve system reliability during professional audio operation.
Key Features
8-Channel Power Sequencing
Provides 8 independently controlled output channels for safe and organized power-on / power-off sequencing of professional audio equipment.
20kW High Power Capacity
Designed for large PA systems, amplifier racks, stage systems, and high-power audio applications.
Biphase / Three-Phase Compatible Input
Supports flexible power input configurations for different installation and touring environments.
MCU Programmable Delay Control
Built-in MCU control allows precise programmable delay timing for more stable and reliable power sequencing.
Independent EMI Power Filter
Each channel is equipped with an independent EMI power filter to reduce interference and improve system stability.
LED Voltage Meter & Operation Display
Real-time LED display shows voltage, delay time, power sequence status, and operating information clearly.
Emergency Shutdown Function
Each output channel can be switched off immediately in urgent situations for better system protection.
Remote Control up to 1 km
Supports long-distance remote control, making it suitable for large venues, stage systems, and distributed audio installations.
Link In / Link Out Function
Allows multiple units to be linked together for larger power control systems.
Overload Voltage Alarm
The system provides an alarm when the voltage exceeds the preset safety range.
Password Protection
Built-in password function helps prevent unauthorized operation or accidental setting changes.
USB Lamp Support
USB lamp connection provides convenient lighting for dark rack environments or backstage use.
Universal Socket Compatibility
Multi-standard socket design supports Chinese, US, and European plugs, making the unit suitable for different market requirements.
Applications
Live sound reinforcement systems
Touring audio systems
Stage power management
Amplifier rack power control
Line array sound systems
DJ and event production systems
Theaters and auditoriums
Clubs and entertainment venues
Conference and corporate audio systems
Fixed professional audio installations
Technical Specifications
| Item | Specification |
|---|---|
| Model | PR380 |
| Channels | 8 sequence output channels |
| Total Power Capacity | 20kW |
| Voltage | Biphase: 110V or 220V ±20%; Three-Phase: 190V or 380V |
| Power Frequency | 50Hz / 60Hz ±5% |
| Power Input | Biphase / Three-Phase, 5-pin industrial socket, 32A input |
| Protection | Overload current protection and short-circuit protection |
| Display | 3-digit LED voltage meter and 3-digit LED program display |
| Voltage Meter Accuracy | ±1% no-load accuracy; ±1% full-load accuracy |
| Sequencing Control | 8 independently controlled sequence channels |
| Power Output | 8 output channels for professional audio equipment |
| Output Load | Each output channel supports up to 40A under resistive load conditions |
| Time Sequence | Programmable delay time |
| Single-Channel Switch | Each channel supports independent emergency shutdown |
| Voltage Setting Error | 1% |
| Overload Voltage Accuracy | ±1% no-load accuracy; ±1% full-load accuracy |
| Grounding Resistance | R ≤ 100mΩ |
| Product Dimensions | 482 × 400 × 88 mm |
| Single Package Size | 607 × 183 × 524 mm |
| 3PCS Package Size | 622 × 599 × 539 mm |
| Net / Gross Weight | 10.25 kg / 11 kg per unit |
| 3PCS Gross Weight | 33 kg |
Why Choose PR380?
The PR380 is built for professional audio systems that require safe, stable, and intelligent power control. With 8-channel sequencing, 20kW high power capacity, MCU programmable delay, independent EMI filters, voltage monitoring, remote control, and protection functions, it is an ideal power management solution for touring systems, stage audio, amplifier racks, and fixed professional installations.
