MCC Panels

Custom Engineered Panel for Commercial Buildings

Custom Engineered Panel assemblies engineered for Commercial Buildings applications, addressing industry-specific requirements and compliance standards.

Custom Engineered Panel for Commercial Buildings

Overview

Custom Engineered Panel assemblies for commercial buildings are designed around the real operating profile of offices, malls, hospitals, hotels, airports, education campuses, and mixed-use developments where continuity of supply, selective coordination, metering accuracy, and maintainability are critical. These assemblies are typically built to IEC 61439-2 for power switchgear and controlgear assemblies, with associated verification of temperature rise, dielectric properties, short-circuit withstand strength, and protective circuit integrity. Depending on the application, engineering may also reference IEC 61439-1 for general requirements, IEC 61439-3 for distribution boards intended for ordinary persons, and IEC 61439-6 for busbar trunking interface and feeder sections. For site installation and commissioning, IEC 60364 practices are often applied alongside local electrical regulations and utility interface requirements. In commercial buildings, common configurations include main distribution boards (MDBs), sub-main distribution boards, final lighting and small power panels, automatic power factor correction (APFC) banks, automatic transfer switches (ATS), metering panels, emergency distribution boards, and BMS integration panels. Incoming protection is usually implemented with air circuit breakers (ACBs) for high-capacity mains up to 6300 A, or molded case circuit breakers (MCCBs) for feeders and submains typically up to 1600 A, selected with appropriate breaking capacity and discrimination margins. Outgoing circuits may use MCBs, MCCBs, contactors, motor starters, protection relays, or residual current devices depending on the load class. Where energy efficiency and occupant comfort matter, variable frequency drives (VFDs) and soft starters are integrated for HVAC pumps, cooling tower fans, smoke control fans, and water booster systems, with coordination to building automation systems. Commercial building panels are often specified with form of separation per IEC 61439-2, commonly Form 2, Form 3b, or Form 4 to improve safety, service continuity, and fault localization. The chosen form depends on maintenance strategy, access restrictions, and whether live maintenance windows are limited. Short-circuit ratings are project-specific and may range from 25 kA to 100 kA or higher at 415 V AC, verified by design or routine testing. Enclosure selection typically targets IP31, IP42, IP54, or higher depending on location, dust exposure, cleaning regime, and plantroom conditions. Indoor plantrooms, basements, roof spaces, and public areas demand different corrosion protection, ventilation, and thermal management approaches. Thermal performance is especially important in dense APFC and metering sections, where harmonic currents from LED drivers, UPS systems, elevators, and VFDs can increase losses and require detuned reactors, harmonic filters, or oversized neutral bars. Safety and compliance may also involve IEC 61641 for internal arc fault mitigation in accessible electrical rooms, IEC 60947 for low-voltage switchgear and controlgear components, and IEC 60079 where panels are installed in hazardous areas within commercial campuses such as fuel depots or specialized service zones. Real-world commercial applications often require intelligent metering, Modbus RTU/TCP, BACnet gateway integration, surge protection devices, and remote trip/close functions for energy management and fault response. Patrion manufactures custom engineered MCC and distribution solutions in Turkey for commercial building applications, supporting EPC contractors, consultants, and facility managers with coordinated layouts, maintainable busbar systems, compartmentalized designs, and documentation aligned with international standards. The result is a panel package optimized for uptime, tenant safety, lifecycle efficiency, and straightforward expansion as building loads evolve.

Key Features

  • Custom Engineered Panel configured for Commercial Buildings requirements
  • Industry-specific environmental ratings and protections
  • Compliance with sector-specific standards and regulations
  • Optimized component selection for industry applications
  • Integration with industry-standard control and monitoring systems

Specifications

PropertyValue
Panel TypeCustom Engineered Panel
IndustryCommercial Buildings
Base StandardIEC 61439-2
EnvironmentIndustry-specific ratings

Other Panels for Commercial Buildings

Main Distribution Board (MDB)

Primary power distribution from transformer to sub-circuits. Rated up to 6300A. Houses main incoming breaker, bus-section, and outgoing feeders.

Lighting Distribution Board

Final distribution for lighting and small power. MCB/RCBO-based with DALI or KNX integration options.

Power Factor Correction Panel (APFC)

Automatic capacitor switching for reactive power compensation. Thyristor or contactor-switched, detuned or standard configurations.

Automatic Transfer Switch (ATS) Panel

Automatic changeover between mains and generator/UPS. Open or closed transition, with or without bypass.

Metering & Monitoring Panel

Energy metering, power quality analysis, and multi-circuit monitoring with communication gateways.

Busbar Trunking System (BTS)

Prefabricated busbar distribution per IEC 61439-6. Sandwich or air-insulated, aluminum or copper.

Capacitor Bank Panel

Fixed or automatic capacitor bank assemblies for bulk reactive power compensation in industrial and utility applications.

Other Industries Using Custom Engineered Panel

Industrial Manufacturing

MCC, PCC, VFD panels, MDB, APFC, automation panels, soft starters, harmonic filters, capacitor banks — full range

Data Centers

High-reliability MDB, PCC, ATS (STS), metering, APFC, BTS, DC distribution

Healthcare & Hospitals

ATS (critical power), MDB, generator control, lighting, metering, APFC

Oil & Gas

Ex-rated panels, MCC, PCC, VFD, generator control, soft starters, ATEX/IECEx compliance

Mining & Metals

Rugged MCC, PCC, VFD panels, generator panels, soft starters, harmonic filters

Renewable Energy

MDB, metering, APFC, ATS, PLC, DC distribution, capacitor banks

Marine & Offshore

Marine-certified panels, MCC, generator sync, ATS, PLC, classification society compliance

Infrastructure & Utilities

MDB, ATS, metering, BTS, lighting distribution, DC distribution

Food & Beverage

Washdown-rated panels (IP65+), MCC, VFD, APFC, PLC, soft starters, harmonic filters

Pharmaceuticals

Cleanroom-compatible panels, MCC, VFD, APFC, PLC, soft starters, harmonic filters

Frequently Asked Questions

A commercial building main switchboard usually includes an incomer ACB or MCCB, busbars sized for the diversified demand, feeder MCCBs/MCBs, metering, surge protection, and often ATS or APFC sections. For compliance, the assembly should be designed and verified to IEC 61439-2, with component selection based on IEC 60947. In practice, engineers also specify forms of separation such as Form 3b or Form 4 to improve maintenance and service continuity. If the building has high HVAC or lift loads, provision for VFD feeders, soft starters, and selective coordination is essential.
Short-circuit ratings are determined from the prospective fault level at the point of installation, transformer size and impedance, cable lengths, and network configuration. The panel assembly must then be verified to withstand that fault level, commonly in the 25 kA to 100 kA range at 415 V AC for commercial projects. Under IEC 61439-1 and IEC 61439-2, this can be demonstrated by design verification, test comparison, or calculation-based assessment where applicable. The incomer device, busbar system, outgoing feeders, and protective coordination must all be matched so the assembly remains safe during fault conditions.
The primary standard is IEC 61439-2 for power switchgear and controlgear assemblies, supported by IEC 61439-1 for general requirements. If the project includes final distribution boards for ordinary persons, IEC 61439-3 is relevant, while IEC 61439-6 applies where busbar trunking systems interface with the assembly. Component devices are generally selected to IEC 60947. For internal arc risk mitigation, IEC 61641 is often used, and IEC 60079 becomes relevant if any part of the installation is in hazardous areas. Local wiring rules and building codes must also be applied.
Typical enclosure ratings for commercial building panels are IP31, IP42, or IP54, depending on the room conditions and exposure to dust, moisture, and cleaning practices. Basement plantrooms, parking ventilation areas, and rooftop plant spaces often need higher protection or corrosion-resistant finishes. The enclosure choice must also support the thermal design, since densely populated panels with APFC banks, VFDs, and metering heat up quickly. IEC 61439 requires temperature-rise verification, so ventilation, gland plate design, and internal segregation should be considered together with the IP rating.
Yes. Commercial building panels are frequently designed with BMS and energy management integration using Modbus RTU, Modbus TCP, BACnet gateways, digital I/O, and smart metering. Typical data points include voltage, current, kW, kWh, power factor, harmonic distortion, breaker status, and alarm conditions. This is especially useful in offices, hotels, hospitals, and malls where energy reporting and remote fault response are important. The panel should include appropriately rated communication devices, surge protection, and segregated wiring routes to maintain EMC performance and serviceability.
The recommended form depends on the building’s maintenance philosophy and acceptable downtime. Form 2 is suitable for simpler distribution boards, while Form 3b or Form 4 is preferred where feeder isolation, reduced arc exposure, and maintenance on live adjacent circuits are important. Under IEC 61439-2, the selected form of separation must be verified as part of the assembly design. In hospitals, airports, and high-occupancy buildings, higher separation levels are often justified because they support safer fault localization and faster restoration of critical loads.
VFDs and soft starters add heat, harmonics, and control complexity, so their inclusion changes the panel’s thermal and electrical design. VFD feeders for pumps, fans, and booster sets may require detuned reactors, harmonic filters, bypass arrangements, and dedicated cable routing. Soft starters are common on HVAC motors and can reduce inrush, but they still need coordinated protection and proper bypass contactor selection. Under IEC 61439, temperature-rise verification and separation of power and control wiring are critical. The panel must also accommodate EMC considerations and interface cleanly with the building automation system.
An MDB is the primary distribution point that feeds all major building loads. An APFC panel automatically corrects power factor using capacitor banks, contactors, reactors, and controller logic. An ATS panel transfers essential loads between utility and standby generator or alternative source, and it must be coordinated for transfer time and interlocking. A metering panel concentrates revenue or sub-metering equipment for tenants, floors, or plant systems. In a custom engineered package, these sections can be combined or separated depending on redundancy, tenant billing, and operational requirements, all while maintaining IEC 61439 compliance.

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