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Products / Low Voltage Switchboards

Low Voltage Switchboard

Low Voltage Switchboards

OMEX low-voltage switchboards provide centralized service entrance, metering, protection, and feeder distribution for commercial, industrial, institutional, data center, EV charging, and infrastructure projects. Each lineup is configured to the project one-line diagram with flexible main-device, bus, metering, distribution, enclosure, and accessibility options.

Single & Three Phase
Project-Specific Ampacity
NEMA 1 or 3R
UL 891 Scope Confirmed
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Overview

A switchboard receives incoming electrical service and distributes power through protected feeders to transformers, panelboards, motor-control equipment, HVAC systems, EV chargers, and other loads. OMEX switchboards can combine utility pull, CT cabinet, metering, main protection, and distribution sections in one coordinated lineup. Engineering support is available for bus sizing, fault-current ratings, device selection, access, enclosure, and service-entrance requirements.

Single-Phase and Three-Phase Systems

Single-Phase System

System
120/240 V, 1-phase, 3-wire split-phase.
Neutral
Yes.
Ampere Range
Project-specific; final design limits confirmed on approved submittal.
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Best Fit
Light commercial, mixed-use, and selected service/distribution applications.
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Three-Phase Systems

Systems
208Y/120 V or 480Y/277 V, 3-phase, 4-wire grounded wye.
Neutral
Yes.
Ampere Range
400-6,000 A; final range subject to approved project configuration.
Best Fit
Commercial, industrial, data center, HVAC, and EV infrastructure.
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Technical Specifications

Ampere Range400-6,000 A; final range subject to approved project configuration.
Systems120/240 V 1Ø3W; 208Y/120 V 3Ø4W; 480Y/277 V 3Ø4W.
Frequency60 Hz.
Bus MaterialAluminum or copper, 65°C rated.
Bus ConfigurationNon-tapered standard; project-specific configurations by engineering review.
Bus Bracing / Assembly SCCR65 kA or 100 kA, subject to design and available fault current.
Breaker / Fuse Interrupting Rating35, 65, 85, or 100 kAIC, by device and system voltage.
Main DeviceMain lug only, main circuit breaker, or fusible main.
Feed / Section PositionTop or bottom feed; incoming section left or right.
EnclosureNEMA 1 indoor or NEMA 3R outdoor.
Protection FunctionsLI, LSI, LSIG, and arc-energy reduction options where supported by the selected breaker.
StandardsUL 891 listed configuration and NEC-compliant installation requirements are confirmed on the final submittal and equipment labels.

Typical capabilities shown. Final ratings and features are subject to the approved project submittal.

Available Accessories & Options

Metering / Protection

  • Utility pull section and CT cabinet
  • Utility or digital metering provisions
  • Surge protective device
  • Ground-fault protection
  • LSI, LSIG, and arc-energy reduction features

Construction / Controls

  • Top- or bottom-feed service
  • Front-access or front/rear-access arrangement
  • Space heaters, lights, and receptacles
  • Key interlocks, barriers, and custom labels
  • Spare spaces, communications, and monitoring provisions

Applications

Commercial buildings
Industrial facilities
Data centers
Healthcare and institutional facilities
EV charging infrastructure
Utility-support and infrastructure projects
Transformer, panelboard, MCC, and HVAC distribution

Standards & Quality

Factory-assembled, inspected, and tested for the approved project configuration. UL 891 listing, service-entrance suitability, short-circuit rating, metering provisions, device ratings, and NEC installation requirements are confirmed on the final submittal and equipment labels.

Need A Switchboard Built To Your Spec?

Build a switchboard quote, upload a one-line diagram, talk to engineering, or request a custom quote for project-specific requirements.

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