Low-voltage · Dead-front
SWITCHBOARDS · UL 891
Custom service-entrance and main distribution switchboards for industrial and critical facilities.
Each dead-front switchboard is engineered around your voltage, ampacity, fault current, breaker standard and enclosure rating, then built and tested in Littleton, Colorado.
UL File Number
E543445
Ampacity
400A–5000A
SCCR
65–200kAIC
SPECIFICATIONS
COMPLIANCE
Applicable Standard: UL 891 - Dead-Front Switchboards
Applicable Codes: NEC (ANSI/NFPA 70); CSA C22.2 No. 244 (Canada, when applicable)
Maximum Voltage Rating: Up to 600 V AC nominal (maximum 1,000 V within UL scope)
Intended Application: Commercial and Light Industrial Power Distribution
RATINGS
Input Voltages Available: 120/208 V, 240 V, 480/277 V, 600/347 V AC
Frequency: 60 Hz
Main Bus Ampere Rating: 400 A - 5,000 A (higher ratings available by design)
Short-Circuit Current Rating (SCCR): Up to 200 kAIC at specified voltage
Short-Time Withstand: 3-cycle withstand (0.05 seconds)
CONSTRUCTION/BUILD
Construction: Dead-front per UL 891
Enclosure: Galvannealed steel with powder-coat or stainless steel finish
Rating: NEMA 1 (indoor) and NEMA 3R (outdoor)
Seismic: Available with bracing to meet project-specific requirements per IBC 1613 and ASCE 7
Mounting: Free-standing configurations standard; wall-mount availability dependent on ampacity and breaker frame size
Access: Padlockable front doors with three-point latching
Cable Entry: Removable gland plates and bottom-feed provisions for conduit routing and cable termination
Bus: High-conductivity silver-plated copper or tin-plated aluminum; fully rated neutral and ground bus options available
COMPONENTS
Protective Devices: Molded-case or insulated-case circuit breakers
SAFETY
SCCR: Rated and marked per UL 891 to project-specific short circuit current requirements
Trip Settings: LSI and LSIG configurations available
Arc-Flash Risk Reduction: Energy-reducing maintenance settings per NFPA 70 240.87; compatible with AERMS, DAS (Siemens), and RELT (ABB)
Zone-Selective Interlocking: Available where applicable
Ground Fault Protection: Per NFPA 70B
Thermal Inspection: Compliance-ready designs for routine infrared inspection
KEY FEATURES
Custom Configuration
Built to your voltage, ampacity, fault current and breaker requirements.
UL 891 Listed Dead-Front
Ships UL 891 listed. Dead-front design keeps live bus and components out of reach during normal operation.
High-Capacity Bus
400A to 5000A main bus. Silver-plated copper or tin-plated aluminum.
High Fault Current Ratings
SCCR from 65kAIC standard up to 200kAIC.
5 Breaker Brands
Eaton, Siemens, ABB, LS or Schneider Electric.
Enclosure Options
Type 1 indoor or Type 3R outdoor. Stainless steel for corrosive environments.
Why CODI
BUILT THE CODI WAY
We’re lean and nimble by design, and your order is made by people who sincerely care about quality.
Engineers who understand the build
Our engineers don’t hand off drawings and walk away. They’re hands-on in the shop, so their designs work in the real world.
Tough specs
welcome here
We aren’t a “sales” organization. You talk to the people who build your order, and special orders don’t scare us.
Accountability at
every step
Fabrication, copper bus, assembly and testing, all in-house. Every step has a person who owns it.
Built in America
since 1992
Our new 100,000 sq ft facility in Littleton, Colorado, backed by more than three decades of precision manufacturing.
FAQ
What is a UL 891 dead-front switchboard?
A UL 891 switchboard is a low-voltage power distribution assembly listed under the UL 891 standard for dead-front switchboards. Dead-front construction means internal barriers prevent accidental contact with live busbars and components during normal operation or maintenance access. CODI switchboards are factory-tested and ship with a full documentation package including wiring diagrams, bill of materials, and UL label.
How does a switchboard differ from a panelboard?
Switchboards are generally larger, higher-capacity assemblies designed for service entrance and main distribution at the top of a building's electrical hierarchy. They are built to UL 891 and typically handle 400A to 5000A. Panelboards are downstream distribution equipment, typically 100A to 1200A, built to UL 67, and used to distribute branch-circuit power to individual loads. In most facilities, power flows from the utility through a switchboard and then to panelboards.
What short circuit current ratings (SCCR) are available?
CODI switchboards are standard at 65kAIC bracing with options available up to 200kAIC to match facility fault current requirements. SCCR is rated and marked per UL 891. Arc-flash risk reduction configurations are available, including energy-reducing maintenance settings per NEC 240.87 and compatibility with Siemens DAS and ABB RELT systems.
Can CODI switchboards serve as the service entrance for a facility?
Yes. CODI switchboards are available with optional Service Entrance (SE) rating, which allows the unit to function as the primary disconnect point per NEC 230. This is specified at the time of order and requires the appropriate main disconnect device and labeling per NEC 230.70 and 230.91.
Start your order here
CONFIGURE ONLINE
BUILD to specs : ratings, enclosure, bus, and connection options, assembled into a unit matched to your project requirements. This information is what we use to provide a budgetary quote.
