HOW DOES A POWER DISTRIBUTION BOARD WORK?
A power distribution board receives incoming power at the main breaker and distributes it through an internal busbar system to outgoing circuits. In a three phase distribution board, power flows across three live conductors — typically 380V, 400V, or 480V — with each phase feeding designated loads to balance demand across your facility.
From the main distribution board, power travels to sub distribution boards located in different zones or on different floors, each protecting its own group of circuits. Downstream control panels — including motor control panels and VFD panels — then manage specific equipment groups with more granular control and protection. This layered structure means a fault in one zone does not shut down your entire facility, keeping operations running with fewer disruptions and easier troubleshooting.
PEX Electrical Panels Type
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POWER DISTRIBUTION
BOARDS MDB
MOTOR CONTROL
CENTERS MCC
POWER FACTOR
CORRECTION
HARMONIC FILTERS
AHF PHF
ONE-STOP SERVICE
We know that quality customer service is the key to business success. Our professional service team is available 24/7 to ensure a timely response to your every need. From pre-consultation to after-sales support, we are committed to providing a seamless and efficient service experience to ensure that your every question is satisfactorily answered.
Demand Analysis
We first understand your specific needs and expected goals through in-depth communication to ensure that our solutions can fully meet your project needs.
System Integration
Our services go beyond product manufacturing to seamlessly integrate vacuum circuit breakers into your existing systems, ensuring overall operational efficiency and compatibility.
Design
Based on the requirements analysis, our expert team will design the vacuum circuit breaker solution that best suits your needs, including product selection and system configuration.
Commissioning
Our technical team will be responsible for on-site installation and commissioning, ensuring that every step meets technical requirements, and providing training so that your team can be skilled in operation and maintenance.
Custom Manufacturing
Once the solution is determined, we will move to the custom manufacturing phase, using advanced technology and strict quality control to ensure that the product perfectly matches the design specifications.
After-sales Support
We offer a comprehensive after-sales support service, including regular maintenance, troubleshooting and upgrade recommendations, to ensure the long-term stability of your system.
MDB Features
1 / Compliance Standard
Fully type-tested assembly engineered in strict accordance with IEC 61439-1 & 2 standards.
2 /Application Environment
Built for high-availability industrial, commercial, and utility environments, featuring a modular architecture and Form 4 internal separation to isolate functional units.
3 / Ratings
supporting operational voltages up to 1000V AC / 1500V DC and main busbar continuous current ratings up to 6300A.
4 / Zero-Downtime Maintenance
Form 4 withdrawable drawers allow for live-line hot-swapping of outgoing feeders (up to 630 A) and motor starters (up to 250 kW), reducing Mean Time to Repair (MTTR) to minutes.
Solution Partner
1
Main Distribution Board (MDB / PDB)
Main distribution boards and sub distribution boards rated up to 6300A at 380V–690V AC
Modular design with fixed or withdrawable circuit breaker compartments for flexible feeder layout
Internal separation up to Form 4b, with arc-fault containment where required by project specification
Integrated metering, surge protection, and power monitoring options for complete system visibility
2
MOTOR CONTROL CENTER MCC
Centralizes motor control, protection, and monitoring for multiple motor feeders in one assembly
Supports DOL, star-delta, soft starter, and VFD starter configurations across industrial process lines
Plug-in or fixed-type draw-out units for quick maintenance without shutting down the entire lineup
Flexible busbar ratings from 630A to 6300A with Form 2, 3, or 4 internal separation
3
ATS Panel
Automatic transfer between two independent power sources — utility and generator, or dual utility feeds
Open-transition, closed-transition, and delayed-transition switching logic to match your load sensitivity
Integrated controller with adjustable time delays, voltage sensing, and generator start/stop signals
Type-tested assemblies rated for critical and non-critical loads across commercial and industrial sites
4
VFD Panel
Variable-frequency drive integration for precise motor speed control and significant energy savings
Supports single-drive and multi-drive configurations with bypass and harmonic mitigation options
Enclosed in IP42 to IP65 cabinets for indoor plant rooms or outdoor installation
Pre-wired, factory-tested, and shipped ready for connection — reducing on-site commissioning time
4
PF Correction Panel
Automatic step switching based on load demand
Maintains a more stable power factor during operation
Reduces manual adjustment and energy waste
Suitable for fluctuating daily load conditions