UL891 Low Voltage Switchboard
Overview
FERRANTI UL 891 Low Voltage Switchboards are designed to deliver maximum flexibility, reliability, and safety in power distribution for commercial, industrial, and infrastructure applications. Engineered to meet UL 891, CSA, ANSI, IEEE, and NEMA PB-2 standards, our switchboards are available in both standard and fully custom configurations—supporting ampacity up to 12,000A and short-circuit ratings up to 200kA at 480V.
Whether you‘re sourcing equipment for a data center, a manufacturing plant, or a utility application, FERRANTI‘s switchboard solutions are modular, scalable, and built to meet the highest electrical performance demands.
Product Introduction
Key Features & Benefits
· Voltage Rating: Up to 600VAC / 250VDC
· Ampacity: 400A to 12,000A
· Short-Circuit Withstand:
200kA @ 480V
100kA @ 600V
100kA multi-metering with MCCBs
· Breaker Types: UL489 / UL1066 fixed or draw-out, thermal-magnetic or electronic, 80% or 100% rated
· Enclosures: NEMA 1 / NEMA 3R (Indoor & Outdoor), ANSI 61 Gray powder coat standard (custom colors optional)
· Construction: Rigid frame with bus & breaker isolation
· Seismic Tested: Meets IEEE 344 & ICC-ES-AC156 requirements
Applications
Commercial Buildings & Multi-Tenant Installations
Optimized for load metering, MCCB configurations, and space-conscious design.
Industrial Facilities & Data Centers
High-capacity and scalable for mission-critical infrastructure.
Power Utilities & Substations
Compatible with transformer and bus duct feeds; integrated automation options.
Hospitals & Airports
Where high reliability, low temperature rise, and rapid serviceability are essential.