UL 891 Switchboards Built for Your Project
Low-voltage dead-front switchboards engineered around your one-line diagram, service size and site conditions.
Low-Voltage Switchboards Engineered to Specification
A switchboard is the heart of a building's low-voltage power system. It receives utility or transformer power and distributes it safely to panelboards, motor control centers and large loads. EBS Electrical Equipment engineers and manufactures UL 891 switchboards that match the exact requirements on your drawings instead of forcing your design to fit a catalog unit.
UL 891 is the safety standard for dead-front switchboards rated 600 volts or less. Building to it gives engineers, inspectors and owners confidence that the equipment was designed and assembled with proper spacing, bus bracing and protective device coordination in mind.
What Our Switchboard Service Includes
Main service switchboards
Service entrance sections with utility metering compartments, main breakers or fused switches sized to your service.
Distribution sections
Group-mounted or individually mounted feeder devices arranged for clean cable routing and future expansion space.
Copper or aluminum bus
Bus material, ampacity and short-circuit bracing selected to match the available fault current at your site.
Shop drawings & submittals
Elevations, one-lines and bill of materials prepared for engineer review before fabrication begins.
Our Process
How We Build Your Switchboard
- 01
Drawing review
We study the one-line diagram, load schedule and utility requirements to confirm ratings.
- 02
Engineering & layout
Our team designs section layouts, bus routing and device placement for code-compliant clearances.
- 03
Fabrication & assembly
Enclosures, bus and devices are assembled and wired in our Los Angeles shop.
- 04
Inspection & delivery
Each switchboard is checked against the approved submittal before it ships to your site.
Where Our Switchboards Are Installed
- Office and mixed-use buildings
- Retail centers and restaurants
- Warehouses and distribution centers
- Schools and public facilities
- Multifamily residential projects
- Light manufacturing plants
Why Contractors Order Switchboards From EBS
- Built locally in Los Angeles, so changes and questions are handled quickly
- Designs that follow your specification instead of a fixed catalog
- Room for future feeders planned from the start
- Direct communication with the people building your equipment
UL 891 Switchboards FAQ
- What does UL 891 cover?
- UL 891 is the standard for dead-front switchboards rated 600 volts or less. It covers construction, spacing, bus bracing and testing requirements for low-voltage distribution equipment.
- Can you match an engineer's specification exactly?
- Yes. We build from your one-line diagram and project specification and submit shop drawings for approval before fabrication.
- What is the difference between a switchboard and a panelboard?
- Switchboards are larger floor-standing assemblies that handle service entrance and high-ampacity feeders. Panelboards are smaller, usually wall-mounted, and feed branch circuits.
Get Started
Ready to Power Your Next Project?
Tell us about your switchboard, equipment or electrical service needs. Our team in Los Angeles helps you spec it, build it and get it done right the first time.
