Custom Engineered Panel

A Custom Engineered Panel is a purpose-designed low-voltage switchgear and controlgear assembly built to IEC 61439 for applications that cannot be satisfied by a catalog standard lineup. These assemblies are typically designed under IEC 61439-2 for power switchgear and controlgear assemblies, with design verification documented in accordance with IEC 61439-1. Depending on the application, the panel may include air-circuit-breakers up to 6300 A, moulded-case circuit-breakers up to 1600 A, motor control feeders, variable-frequency drives, soft starters, power factor correction capacitor banks, PLC I/O modules, protection relays, energy meters, HMI/SCADA interfaces, and surge protection devices. Final rated currents commonly range from a few hundred amperes to several thousand amperes, with short-circuit withstand ratings selected to match upstream fault levels, often 50 kA, 65 kA, 80 kA, or higher at 400/415 V depending on the project. The engineering value of a custom panel lies in combining multiple functions in one verified assembly while maintaining thermal performance, dielectric clearances, creepage distances, and accessibility. Form of internal separation may be specified as Form 1, Form 2, Form 3a/3b, or Form 4a/4b, depending on maintainability, service continuity, and segregation requirements between busbars, functional units, and terminal compartments. This is especially important in data centers, hospitals, utility substations, and industrial process plants where downtime must be minimized. Busbar systems are selected for fault level, temperature rise, and expansion planning, while enclosure construction may be adapted for IP31, IP54, IP55, or IP65 protection, stainless steel or powder-coated mild steel, and corrosion-resistant hardware for marine or outdoor duty. Custom engineered panels are also frequently developed for hazardous and demanding environments. For oil and gas, mining, and chemical applications, the design may incorporate ATEX or IECEx considerations, segregation of intrinsically safe circuits, and compliance with IEC 60079. For arc fault mitigation, IEC 61641 testing or arc-resistant compartmentalization may be required. EMC performance is addressed using IEC 61000 practices, especially where VFDs, soft starters, and PLC-based control systems share the same enclosure. In marine and offshore projects, classification society requirements may drive shock, vibration, humidity, and salt-spray performance, while seismic-qualified assemblies may require bracing, anchoring, and verified mechanical integrity. From an application standpoint, these panels are used in water and wastewater pumping stations, renewable-energy balance-of-plant systems, HVAC plants, food and beverage washdown areas, pharmaceutical utilities, process skids, and infrastructure substations. They often combine motor starters, distribution feeders, control power transformers, UPS interfaces, metering, and communications in a single coordinated assembly. Patrion designs and manufactures such IEC 61439-based solutions in Turkey, tailoring each enclosure, busbar system, and protection philosophy to the project’s electrical, mechanical, and environmental constraints. The result is a panel that is not only compliant, but also optimized for serviceability, future expansion, and lifecycle reliability.