ABB Switchboards

ABB ReliaGear Switchboard Authorized Dealer

ABB switchboards provide centralized low-voltage power distribution for commercial buildings, industrial facilities, data centers, healthcare campuses, infrastructure projects, and other operations where dependable electrical service is critical. Bay Power supplies ABB switchboards for new construction, facility expansions, emergency replacements, service upgrades, and the modernization of aging electrical distribution systems.

As an authorized ABB distributor, Bay Power helps electrical contractors, engineers, facility managers, maintenance teams, and purchasing professionals evaluate switchboard requirements based on system voltage, continuous current, available fault current, service-entrance requirements, breaker arrangement, metering, enclosure, footprint, and project schedule. Whether the project requires a new ReliaGear SB lineup, replacement circuit breakers, an expansion section, or support for legacy ABB and GE equipment, our team can help develop a practical path forward.

 

ABB Low-Voltage Switchboard Solutions

A switchboard receives electrical power from a utility service, transformer, generator, or other source and distributes it among downstream feeders and branch circuits. The assembly may contain a main circuit breaker or main lugs, feeder breakers, metering, surge protection, controls, and other power-distribution components.

ABB switchboards can support applications such as:

• Commercial and high-rise buildings
• Manufacturing and processing facilities
• Data centers and telecommunications facilities
• Hospitals and healthcare campuses
• Educational and institutional buildings
• Water and wastewater facilities
• Warehouses and distribution centers
• EV charging infrastructure
• Facility expansions and service upgrades

Bay Power can coordinate switchboard requirements with ABB transformers, ABB circuit breakers, ABB panelboards, and downstream motor-control equipment. Customers comparing multiple manufacturers can also review our broader selection of electrical switchboards.

 

ABB ReliaGear SB Switchboards

ReliaGear SB is ABB’s current low-voltage switchboard platform for commercial and industrial power-distribution projects. It is available for systems through 600 VAC and supports main bus ratings up to 6,000 amps, depending on the selected configuration.

The platform can incorporate ABB SACE Emax 2 power circuit breakers and SACE Tmax XT molded-case circuit breakers. This allows switchboard designs to support a range of main, feeder, protection, metering, and communications requirements using ABB’s current breaker technologies.

ReliaGear SB switchboards may be configured with:

• Main breaker or main-lug-only sections
• Group-mounted distribution sections
• Individually mounted circuit breakers
• Combination main and distribution sections
• Utility and customer metering
• Surge-protective devices
• Ground-fault protection
• Power monitoring and communications
• Indoor or outdoor enclosures
• Service-entrance-rated arrangements

Correct configuration depends on the one-line diagram, load schedule, short-circuit study, utility requirements, selective coordination goals, installation space, cable-entry requirements, and applicable electrical codes.

 

Plug-In Tmax XT Distribution Breakers

ReliaGear SB group-mounted distribution sections use a modular bus-stack design that accepts compatible ABB Tmax XT plug-in circuit breakers. Breakers can be positioned at available locations on the bus stack rather than being permanently assigned to a single factory-defined space.

This architecture can simplify initial installation and provide greater flexibility when circuits must be added, relocated, or changed. Spring-loaded breaker connections and finger-safe features at the plug-in points also support efficient installation and servicing when the equipment is properly de-energized and maintained according to approved procedures.

Tmax XT breakers are available with a range of trip-unit, metering, communications, and accessory options. Bay Power can help identify breakers based on frame size, continuous current, interrupting rating, pole configuration, trip unit, mounting style, and switchboard compatibility.

 

ABB Emax 2 Main and Feeder Breakers

ABB SACE Emax 2 air circuit breakers can be used as mains, ties, or large feeders in ReliaGear SB switchboards. Emax 2 breakers are available with electronic trip units and optional monitoring, communications, and power-management capabilities for applications requiring advanced protection and system visibility.

Selecting an Emax 2 breaker requires coordination with the switchboard bus rating, available fault current, protection study, downstream devices, control power, communications architecture, and operating sequence. Bay Power can support both new Emax 2 applications and projects involving the replacement or modernization of older low-voltage power breakers.

For facilities with aging GE or ABB power-distribution equipment, our team can also help evaluate whether an individual breaker replacement, trip-unit upgrade, switchboard modification, or broader ABB switchgear modernization project is appropriate.

 

Merchandised ReliaGear SB Switchboards

Long factory lead times can create significant problems when a switchboard is damaged or a construction project is working against a firm energization date. ABB offers preconfigured merchandised ReliaGear SB assemblies intended for applications where faster equipment availability is a priority.

Merchandised switchboards can be useful for:

• Emergency equipment replacement
• Property-damage recovery
• Commercial renovations
• Building expansions
• Data-center projects
• Projects with compressed construction schedules

Availability and suitability depend on the required voltage, amperage, breaker arrangement, enclosure, fault-current rating, and other project details. Bay Power can review the application and determine whether a preconfigured assembly can meet the requirements or whether an engineered switchboard is necessary.

 

Commercial Metering Switchboards

ABB commercial metering switchboards combine electrical distribution with multiple utility or tenant metering positions. These systems are commonly used in shopping centers, mixed-use buildings, office properties, multifamily developments, and other facilities where individual services or tenant loads must be separately metered.

A commercial metering project may require coordination among the utility, engineer, electrical contractor, equipment manufacturer, and local authority having jurisdiction. Meter socket type, service arrangement, bus rating, tenant-main configuration, available fault current, and utility-specific standards should be confirmed before equipment is ordered.

 

ABB Switchboards for EV Charging Infrastructure

Large EV charging installations can create concentrated electrical loads and may need distribution equipment that accommodates both current charger demand and future expansion. ABB offers ReliaGear SB grid-to-charger switchboard configurations intended to simplify power distribution for multi-charger deployments.

An EV charging switchboard project may include utility service equipment, metering, main and feeder protection, transformers, energy-management controls, communications, and provisions for future circuits. Bay Power can help coordinate the switchboard with associated ABB transformers, breakers, panelboards, and other distribution equipment.

 

Switchboards vs. Panelboards and Switchgear

Switchboards, panelboards, and switchgear all distribute electrical power, but they are constructed and applied differently. A panelboard is generally a smaller wall-mounted or cabinet-mounted assembly serving branch circuits and lower-capacity distribution requirements.

A switchboard is typically floor-mounted and can support larger services, more substantial feeder circuits, utility metering, and a wider range of main-device arrangements. It is commonly used as a facility’s main low-voltage distribution point.

Low-voltage switchgear is generally selected for applications requiring compartmentalized draw-out power breakers, higher short-time withstand capability, extensive protection and control, or increased serviceability for critical systems. Bay Power can help customers evaluate which equipment class is appropriate rather than specifying more complex equipment than the application requires.

 

Replacing Legacy ABB, GE, and Spectra Switchboards

Many operating facilities contain older GE Spectra Series, AV-Line, Power Break, or previous-generation ABB switchboards. Replacing or expanding this equipment can be difficult when original breakers and components are obsolete, the existing footprint must remain unchanged, or a complete shutdown is not practical.

When requesting assistance with an existing switchboard, provide:

• Manufacturer, model, and equipment identification numbers
• Clear photographs of all nameplates and labels
• One-line diagrams and original drawings when available
• System voltage, phase, and wire configuration
• Main-bus ampere rating
• Short-circuit rating
• Main and feeder breaker catalog numbers
• Trip-unit models and protection settings
• Enclosure type and overall dimensions
• Utility metering or service-entrance requirements
• Cable-entry and conduit information
• Photographs of the interior and surrounding installation

Bay Power can help evaluate current ABB replacements, replacement breakers, professionally reconditioned equipment, custom sections, retrofit options, or a complete switchboard modernization strategy.

 

Switchboard Testing, Repair, and Modernization

Overheating, damaged bus connections, nuisance breaker trips, insulation deterioration, contamination, loose hardware, and obsolete protective devices can threaten switchboard reliability. Replacing one breaker may restore operation temporarily without addressing the underlying condition.

Bay Power’s testing and repair services support circuit-breaker testing, inspection, troubleshooting, maintenance, and equipment modernization. Our capabilities can help customers assess the condition of existing switchboards and determine whether repair, component replacement, retrofit, or full replacement provides the most practical solution.

For projects involving system changes or increased loading, Bay Power can also support power-system and arc-flash studies to evaluate equipment ratings, protective-device coordination, incident energy, and labeling requirements.

 

Why Buy ABB Switchboards from Bay Power?

Switchboard projects require careful coordination among equipment ratings, protective devices, utility requirements, site conditions, lead times, and installation constraints. Incomplete specifications or incorrectly selected equipment can create costly redesigns, failed inspections, and extended outages.

Bay Power provides:

• Authorized ABB distribution
• Access to ABB ReliaGear SB switchboards
• Emax 2 and Tmax XT breaker solutions
• Group-mounted, individually mounted, and metering configurations
• Support for new construction, emergency replacement, and facility expansion
• Assistance with legacy ABB and GE switchboard equipment
• New, surplus, obsolete, and professionally reconditioned breakers
• In-house testing, repair, and modernization expertise
• Coordination with transformers, panelboards, switchgear, and motor control
• Nationwide sourcing and project support

Bay Power combines ABB product access, deep electrical-distribution expertise, extensive equipment inventory, and in-house service capabilities to support projects from initial selection through long-term operation. Whether the need involves a new ReliaGear SB lineup, an urgent breaker replacement, a legacy GE switchboard, or a complete facility modernization, our team can help reduce downtime, control project risk, and keep critical electrical systems operating.

 

Need an ABB switchboard or help evaluating existing equipment? Contact Bay Power to discuss your project or request an ABB switchboard quote.