Panelboards vs Switchboards: How to Choose
18th Jun 2024
Selecting the most appropriate electrical power distribution equipment is crucial when planning any new construction or renovation project involving significant loads. Two of the main options to consider are panelboards and switchboards – but what exactly distinguishes these technologies? In this detailed comparison guide, we’ll examine key differences, applications, advantages and limitations of each approach to help inform the right choice for your facility. Defining Panelboards and Switchboards First, let’s clearly define what panelboards and switchboards are at a basic level before diving into comparative details. What is Panelboard? Panelboards, often called breaker panels or distribution boards, provide access to protective circuit breakers for downstream equipment while also facilitating reliable power distribution from the supply source. Enclosed panelboards feature a metal cabinet housing multiple smaller branch circuit breakers controlling loads under 600 amps. Key components include: Protective circuit breakers or fuses Bus bars for current flow Lugs, neutral bar, ground bar Outer metal enclosure Electrical panel boards range from basic branch circuits that distribute power to lights, outlets, appliances, machinery, and other loads. Breaker panels for residential and light commercial use to large-capacity PDUs (power distribution units) designed for data centers and industrial facilities. What is Switchboard? Switchboards also route and protect electrical power feeds, but at much higher capacities than panelboards[1]. They feature protective devices above 600A along with more complex voltage monitoring, metering, and control equipment. Typical switchboard components include: High-capacity circuit breakers Volt and amp meters Ground fault monitoring Alarms Bigger bus bars Switchboards come in fixed or draw-out designs that enable […]
Read More
