400A Three-Phase Power Distribution Cabinet with Cam-Lok Input and 19-Pin Outputs
Product Summary
This professional 400A three-phase power distribution cabinet features Cam-Lok input and loop-output connectors, six duplex American-standard outlets, and eight 19-pin multicircuit outputs. Integrated voltage and current monitoring, independent circuit breakers, status indicators, and multiple electrical protection functions provide reliable power distribution for concerts, touring productions, film sets, temporary installations, and other demanding applications.
Product Overview
The Haozhiseng 400A Power Distribution Cabinet is an industrial-grade three-phase, five-wire power distribution system designed for professional stage, touring, event, film, television, rental, and temporary power applications.
The system operates from an AC 380V three-phase supply and uses heavy-duty 400A American-style Cam-Lok connectors, also commonly referred to as Rhino connectors, for power input and loop output. The loop-output design allows power to be extended to an additional distribution unit, provided that the total connected load remains within the rated capacity.
For equipment connection, the cabinet provides six independently protected duplex American-standard 220V outlets and eight professional 19-pin female outputs. Each 19-pin output can be connected to a compatible fan-out cable to provide six individual 220V circuits, giving the cabinet up to 48 multicircuit outputs.
A three-phase digital power meter displays voltage and current information for the A, B, and C phases. Independent circuit breakers and LED indicators make circuit status easy to monitor while providing protection against leakage, short circuits, overloads, and abnormal operating conditions.
The system is installed in a heavy-duty flight case with reinforced aluminum edging, protective hardware, side handles, and industrial caster wheels for convenient transportation and repeated professional use.
Key Features
- Professional 400A three-phase power distribution cabinet
- Three-phase, five-wire input configuration: L1, L2, L3, N and PE
- AC 380V ±10%, 50Hz rated input
- Heavy-duty 400A Cam-Lok input connectors
- 400A Cam-Lok loop output for system expansion
- Six duplex American-standard 220V outlet circuits
- Each duplex outlet circuit rated at 16A
- Eight professional 19-pin female multicircuit outputs
- Six 220V circuits available from each 19-pin output
- Up to 48 individual 220V circuits through compatible fan-out cables
- Independent circuit breakers for organized output protection
- Individual LED operating indicators for output circuits
- Digital three-phase voltage and current monitoring
- Leakage, short-circuit and overload protection
- Phase-status monitoring for reliable operation
- Two integrated cooling fans
- Heavy-duty mobile flight-case construction
- Reinforced aluminum edging and protective hardware
- Industrial caster wheels for convenient transportation
- Suitable for touring, rental and fixed-installation applications
Input and Output Configuration
400A Power Input
The main power input uses five heavy-duty single-pole Cam-Lok connectors:
- L1: Yellow
- L2: Green
- L3: Red
- N: Blue
- PE: Yellow/green protective earth
400A Loop Output
A second set of 400A Cam-Lok connectors provides loop-through power for an additional distribution cabinet or compatible device.
The combined load of the main cabinet and all connected downstream equipment must not exceed the rated 400A capacity.
American-Standard Outlet Outputs
The cabinet includes six independently controlled duplex American-standard outlet circuits:
- Six duplex outlet groups
- Two receptacles per group
- Twelve receptacles in total
- 220V single-phase output
- Maximum rated current: 16A per circuit
- Independent circuit protection
- Individual operating indicators
19-Pin Multicircuit Outputs
Eight 19-pin female connectors are provided for professional multicircuit power distribution.
Each 19-pin output can connect to a compatible fan-out cable and provide six individual 220V output circuits. The eight connectors therefore support up to 48 independently protected 220V circuits.
Digital Monitoring System
The integrated three-phase digital meter provides real-time monitoring of the incoming power supply.
It can display:
- Phase-A voltage and current
- Phase-B voltage and current
- Phase-C voltage and current
- Real-time system operating status
The meter allows operators to monitor phase loading and identify abnormal voltage or current conditions before they affect connected equipment.
Electrical Protection
The cabinet uses independent protection devices to help provide safe and stable power distribution.
Protection functions include:
- Main power isolation
- Independent output circuit breakers
- Leakage protection
- Short-circuit protection
- Overload protection
- Phase-status monitoring
- Protective earth connection
- Individual output-status indicators
If a fault occurs in one output circuit, the affected circuit can be isolated without interrupting unrelated output groups.
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Professional Mobile Power Distribution Cabinet |
| Input System | Three-Phase, Five-Wire |
| Wiring Configuration | L1 / L2 / L3 / N / PE |
| Rated Input Voltage | AC 380V ±10% |
| Rated Frequency | 50Hz |
| Maximum Input Current | 400A |
| Input Connectors | 400A American-Style Cam-Lok Connectors |
| Loop Output | 400A Cam-Lok Loop-Through Output |
| American-Standard Outputs | 6 × Duplex Outlet Groups |
| Total American Receptacles | 12 |
| Outlet Voltage | 220V |
| Maximum Current per Outlet Circuit | 16A |
| Multicircuit Outputs | 8 × 19-Pin Female Connectors |
| Circuits per 19-Pin Output | 6 × 220V Circuits |
| Maximum Multicircuit Outputs | 48 × 220V Circuits |
| Monitoring | Three-Phase Digital Voltage and Current Meter |
| Status Indicators | Independent LED Output Indicators |
| Protection | Leakage, Short-Circuit and Overload Protection |
| Cooling | 2 × Integrated Cooling Fans |
| Operating Temperature | -20°C to +55°C |
| Operating Humidity | ≤95%, Non-Condensing |
| Required Ground Resistance | ≤4Ω |
| Enclosure | Heavy-Duty Mobile Flight Case |
| Mobility | Industrial Caster Wheels |
Applications
- Concert and festival power distribution
- Professional stage productions
- Touring audio and lighting systems
- Film and television production
- Theatre and performance venues
- Event production companies
- Professional equipment rental systems
- Temporary construction power
- Exhibition and conference systems
- Broadcast and production facilities
- Equipment rooms
- Temporary and fixed power installations
Operating Advantages
Organized Multicircuit Distribution
Eight 19-pin outputs allow multiple 220V circuits to be carried through organized multicore cables, reducing cable clutter and simplifying large event installations.
Real-Time Three-Phase Monitoring
The digital meter allows technicians to check voltage and current across all three phases, helping maintain balanced loading and stable system performance.
Expandable Power System
The 400A loop output allows another compatible distribution device to be connected when additional outputs are required.
Independent Circuit Control
Each output group has dedicated circuit protection, allowing individual circuits to be switched, monitored, and isolated as required.
Touring-Grade Construction
The reinforced flight case, metal panels, protective edging, side hardware, and caster wheels are designed for frequent transportation and demanding professional use.
Important Safety Information
Installation, wiring, operation, and maintenance must be performed by qualified electrical personnel.
- Always disconnect the main and upstream power supplies before connecting, servicing, or moving the cabinet.
- Never connect or disconnect the 400A Cam-Lok connectors while energized.
- Confirm the correct phase sequence before switching on the main breaker.
- The protective earth conductor must always be securely connected.
- Do not exceed the 400A total input capacity.
- Do not exceed 16A on any American-standard outlet circuit.
- Use copper input cables of at least 50 mm² when operating at full load.
- Keep the ventilation openings uncovered during operation.
- Use the cabinet only in dry, ventilated environments free from corrosive gases and flammable materials.
- Stop using the equipment immediately if overheating, smoke, abnormal noise, odor, or electrical faults are detected.
Why Choose This 400A Power Distribution Cabinet?
This 400A power distribution cabinet combines high-capacity three-phase input, Cam-Lok loop-through connectivity, American-standard outlets, 19-pin multicircuit outputs, real-time digital monitoring, and independent circuit protection in one mobile system.
Its flexible output configuration and rugged flight-case construction make it a practical power-management solution for professional touring companies, event-production teams, theatres, studios, rental businesses, and temporary power projects.
Custom input connectors, output configurations, voltage specifications, cable assemblies, labeling, branding, and flight-case designs are available for OEM, ODM, and project requirements.
