Power Distribution Panel Types
Comprehensive engineering guides on every type of power distribution panel — from Main Distribution Boards to custom engineered assemblies.
Main Distribution Board (MDB)
Primary power distribution hub receiving supply from transformer and distributing to sub-circuits via ACBs and MCCBs. Rated up to 6300A. Houses main incoming breaker, bus-section, and outgoing feeders.
Sub-Distribution Board (SDB)
Secondary distribution from MDB to final circuits. Typically MCCB/MCB based, 100A–800A. Located at floor level or zone level in commercial buildings.
Power Control Center (PCC)
High-capacity centralized power distribution for large industrial facilities and data centers. Controls and distributes incoming power to MCCs, APFCs, and downstream loads. Typically 2000A–6300A.
Motor Control Center (MCC)
Centralized motor control with starters, contactors, overloads, and VFDs in standardized withdrawable or fixed functional units.
Low Voltage Switchgear (LVS)
Complete low-voltage switching and protection assembly for power distribution networks. ACB-based, draw-out construction, 630A–6300A.
Automatic Transfer Switch (ATS) Panel
Automatic changeover between utility supply and standby generator or dual utility feeds. Open transition (break-before-make) or closed transition (make-before-break).
Power Factor Correction (APFC) Panel
Automatic capacitor switching for reactive power compensation. Thyristor-switched or contactor-switched, with detuned reactors for harmonic-rich environments.
Busbar Trunking System (BTS)
Prefabricated busbar distribution per IEC 61439-6. Sandwich or air-insulated, aluminum or copper conductors. Used for vertical risers and horizontal distribution.
Metering & Monitoring Panel
Energy metering, power quality analysis, and multi-circuit monitoring with communication gateways. Houses CTs, meters, and analyzers.
Generator Synchronization Panel
Genset start/stop sequencing, synchronization, load sharing, and paralleling controls. Manages multiple generator sets.
Capacitor Bank Panel
Fixed or automatic capacitor bank assemblies for bulk reactive power compensation. Includes fuse-switch disconnectors, discharge resistors, and automatic PFC controllers.
Harmonic Filter Panel
Active or passive harmonic filtering to mitigate THD from VFDs, UPS systems, and other non-linear loads. Tuned LC filters, active filters, or hybrid configurations.
Change-Over Panel
Manual or motorized changeover between two supply sources. Provides source selection with mechanical or electrical interlocking to prevent paralleling.
Feeder Pillar
Outdoor free-standing distribution cabinet for street lighting, landscaping power, and external area distribution. IP65+ rated, vandal-resistant construction.
Custom Engineered Panel
Bespoke panel assemblies for non-standard requirements — special ratings, unusual form factors, multi-function combinations, extreme ambient conditions.