Description

Product Description
The 12kW three phase AC combiner box is designed for residential estates, commercial buildings, and small industrial solar or backup power systems where a three phase inverter requires safe and compliant AC distribution. It provides a central interface between the inverter output and the main distribution board, ensuring proper protection and system coordination.

The unit integrates essential protection components including three phase circuit breakers, earth leakage protection devices, and surge protection devices. These components protect the system against overloads, short circuits, phase imbalance issues, earth faults, and voltage surges caused by lightning or grid disturbances.

Suitable for three phase hybrid and grid tied inverter systems up to 12kW, the combiner box simplifies installation by combining all required AC protection into a single enclosure. Its robust design supports both indoor and outdoor installation depending on enclosure rating, making it suitable for residential estates, commercial buildings, and light industrial applications.

Technical Specifications

• Product Type: AC combiner box
• System Type: Three phase AC protection and distribution unit
• Rated Power: Up to 12 kW
• Rated Voltage: 380 to 415 V AC
• Frequency: 50 Hz
• Phase: Three phase
• Input: Inverter AC output
• Output: Main distribution board connection
• Protection Components:
  • Three phase AC circuit breaker MCB or MCCB
  • Earth leakage breaker RCD or RCBO three phase
  • Surge protection device SPD Type 2
• Overcurrent Protection: Yes via MCB or MCCB
• Earth Leakage Protection: Yes via RCD or RCBO
• Surge Protection: Yes for transient voltage protection
• Isolation: Three phase manual isolator switch or breaker
• Enclosure Material: ABS plastic or powder coated metal
• Protection Rating: Typically IP65 for outdoor or IP54 for indoor
• Mounting Type: Wall mounted
• Cable Entry: Top or bottom gland entries
• Operating Temperature Range: Approximately minus 10 degrees C to 55 degrees C
• Compliance: IEC standards for low voltage three phase distribution systems
• Installation Type: Indoor or outdoor depending on enclosure rating
• Application:
  • Residential estates
  • Commercial buildings
  • Small industrial solar systems
  • Three phase hybrid inverter systems up to 12 kW
• Key Features:
  • Full three phase AC protection integration
  • Compact and durable enclosure design
  • Simplified installation and wiring
  • Enhanced system safety and reliability
  • Suitable for residential and commercial use