What is the difference between a lighting panel and a power panel?

Lighting and appliance branch-circuit panelboards typically have a large number of small-capacity circuits (15A-30A) for building services. Power panelboards are designed for larger loads, often feeding machinery or secondary distribution points with higher amperage breakers.

Are EAMFCO panelboards compliant with IEC 61439-1?

Yes, all EAMFCO low voltage panelboards are engineered and manufactured to meet IEC 61439-1 / 61439-2 standards, ensuring safety and performance in Saudi Arabia's industrial conditions.

What Is a Low Voltage Panelboard? | Panel Builder Guide…

Definition

A low voltage (LV) panelboard is a centralized metal enclosure that houses circuit breakers or fuses used to distribute electrical energy into subsidiary branch circuits. It serves as the primary interface between the main power supply (from an MDB or Transformer) and the final loads like lighting, small motors, or office equipment.

The Role of Panelboards in an Electrical Network

In the hierarchy of power distribution, panelboards are typically "downstream" equipment. They receive power from a larger Switchboard or Main Distribution Board (MDB) and break it down into smaller, manageable chunks. This multi-tier protection approach ensures that a fault in one room or machine doesn't shut down the entire facility.

In Saudi Arabia, panelboards are often referred to as "Distribution Boards" (DB) or "Final Distribution Boards," depending on their location in the Single Line Diagram (SLD).

Key Components of a Panelboard

Main Busbars

High-Purity Copper

The core conductors that carry total current through the panel. EAMFCO uses 99.9% tinned copper to minimize heat and corrosion.

Main Breaker / Lug Only

MCCB or MCB

The entry point for power. A Main Breaker panel provides local shut-off, while "Main Lug Only" (MLO) relies on a breaker further upstream.

Branch Circuit Breakers

Protective Logic

Miniature Circuit Breakers (MCB) that protect individual circuits from overcurrent and short circuits.

Neutral & Ground Bars

Safety Nodes

Terminals for return paths and safety grounding, critical for preventing electric shocks and equipment damage.

Types of LV Panelboards

Type	Primary Use Case	Standard Amperage
Lighting Panel (LP)	Interior/Exterior lighting and small appliances	100A - 225A
Power Panel (PP)	Industrial machinery, HVAC units, motors	400A - 800A
Distribution Board (DB)	General commercial/residential floor distribution	125A - 400A
Sub-Distribution Board	Zone-specific protection (e.g., data centers)	60A - 250A

Frequently Asked Questions

Q: Can panelboards be used outdoors?

A: Yes, but they must have an appropriate NEMA or IP rating. For Saudi desert environments, EAMFCO recommends IP65 rated stainless steel or powder-coated enclosures to prevent dust and moisture ingress.

Q: What is a 'Bolt-On' vs 'Plug-On' breaker?

A: Bolt-on breakers are physically secured to the busbar with screws, offering higher reliability for industrial vibrations. Plug-on breakers simply snap into place and are more common in light commercial settings.

Q: How often should a panelboard be inspected?

A: We recommend a thermal imaging scan and physical inspection every 12 months to check for loose connections or heat-related fatigue in heavy-duty industrial panels.