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MEA-Series 2.4kV-38kV Metal Enclosed/Clad Draw-Out Vacuum Circuit Breaker Switchgear

2.4kV, 4.16kV, 6.6kV, 7.2kV, 11kV, 12.47kV, 13.2kV, 13.8kV, 22kV, 27kV, 34.5kV, 38kV Paralleling, Transfer, & Distribution Full Depth Draw-out Circuit Breaker Switchgear

SAFE  SMART SERVICEABLE SECURE SWITCHGEAR

Our MEA-Series offers voltage ratings from 2.4kV to 38kV, including 34.5kV switchgear configurations, and is a versatile solution for both indoor and outdoor applications. Available configurations support power distribution, source transfer, and generator paralleling, with equipment ratings selected for each project’s requirements.

Medium Voltage Metal Enclosed Switchgear

Product Features

  • Metal enclosed/clad type draw-out circuit breaker-based design
  • Drawout Vacuum Circuit Breaker with Test, Disconnected, and Connected positions
  • Silver plated copper line and load bus bar connections
  • Voltage Transformers (Fixed or Drawout Mounted)
  • Current Transformers are Front Accessible, mounted on the primary insulating bushings behind the metal automatic shutters
  • Enclosure includes hinged front door with knurled screws
  • Designed & built to ANSI C37.20.3

Optional Features

  • Automatic Transfer (ATS), Open & Closed Transition Transfer
  • Main Bus
  • Power Metering
  • Protective Relaying
  • Main-Tie-Main Control
    • Configurations with multiple Main and multiple Tie circuit breakers
  • Generator Paralleling
    • Automatic paralleling of multiple generators for Prime Power, Co-Generation, and Peak Shaving applications, with 34.5kV switchgear options available to support high-voltage integration needs.
  • Automatic paralleling of dissimilar prime movers such as:
    • Gas turbines
    • Diesel engines
    • Natural gas reciprocating engines
    • Landfill and digester gas reciprocating engines
    • Combustion turbines
    • Synchronous and induction generators
    • Inverter based systems
    • Motor-generators
    • Wind and solar driven generators
  • Communication
  • Incorporation of any size dry type transformers, including configurations supporting 34.5kV switchgear for enhanced power distribution capabilities
  • Seamless load transfer between power sources
  • Solid, low impedance and high impedance grounded systems
  • Heavy skid mounted switchgear and substations
  • Provisions for maintenance grounding of the feeder cables
  • Web enabled, remote monitoring and control
  • Remote access switchgear control line-ups for ultimate operator safety

Specifications

Voltage

2.4kV – 38kV, 3 Phase, 3 Wire

Main Bus Amperage

1200A, 2000A, 3000A

Enclosure

  • NEMA 1 for Indoor Use
  • NEMA 3R for Outdoor Use (Non Walk-In)
  • Outdoor Walk-In PwrHouse

Dimensions

36″W x 80″H x 72-92″D (Each Section)

Medium Voltage Metal Enclosed Switchgear

Vacuum Circuit Breakers (VCBs)

  • High performance, robust, draw-out removable breakers
  • Integral manual charging handle
  • Mechanical interlocks prevent withdrawal or insertion of the circuit breaker when main contacts are not open
  • Closing springs automatically discharge before moving the circuit breaker out of the enclosure
  • Circuit breaker cell mechanism maintains trip during insertion or withdrawal
  • Breaker cannot be electrically or mechanically closed when in the intermediate position
  • Cells are keyed to ensure only correct breaker rating can be installed in cell
  • High-speed operation – complete fault clearing in less than 3 cycles
  • Hermetically sealed vacuum interrupters protect contacts from corroding elements and contamination
  • Easy maintenance with contact wear indicator is provided on the vacuum interrupter moving stem
  • Periodic visual inspection with a feeler gauge is required to verify that the contacts have not worn out
15A-Series-2.4kV-15kV-Metal-Clad-Switchgear-Vacuum-Circuit-Breaker-APT-Power
See Page 5 of our MEA-Series brochure for Available VCB Ratings

Medium Voltage Metal Enclosed Switchgear Accessories

Electric Racking Device

  • Installed onto switchgear section circuit breaker racking mechanism
  • Devices from the TEST/DISCONNECT position to the CONNECTED position in the circuit breaker cell
  • 50 ft. (15.2 m) long cord to allow for remote racking from a distance. This makes operator safety the top priority
  • Requires 120VAC customer supplied control power within the switchgear installation area; may require extension cord

Wall-Mountable Circuit Breaker Test Cabinet

APT-Power-Circuit-Breaker-Test-Cabinet-Metal-Clad-Switchgear
  • Tests the circuit breaker for proper operation when removed from the circuit breaker cell
  • Compact wall-mountable design; requires customer supplied switchgear control power input
  • On-off toggle switch, power-on indicating light, breaker position indication lights, CLOSE & OPEN push buttons
  • 8 ft. (2.4 m) cable with connection plug for secondary connection receptacles at the rear of the circuit breaker

Hinged Rear Doors &
Infrared (IR) Viewing Windows

15A-Series-2.4kV-15kV-Metal-Clad-Switchgear-IR-Window-Hinged-Doors-APT-Power
  • IR Windows can measure temperature without removing the sheet metal cover on the panel
  • IR Window Ports include removable covers for maintaining “Hot Spot” Inspection in the breaker compartment
  • IR Windows come with an outside infrared camera
  • Inner removable sheets provided for easy connection
  • Hinged Rear Doors come with a padlock

24VDC Switchgear Battery Charger

Intelligent-Battery-Charger-Switchgear-Kits-&-Accessories-APT-Power
  • Charges for 24VDC Control Power Batteries for all Switchgear System Ratings
    • Low Voltage: 208V-690V (3Ø)
    • Medium Voltage: 2.4kV-38kV (3Ø)
  • Automatic three stage charging
  • Adjustable current limit
  • Dual purpose battery charger and power supply can be used simultaneously
  • Automatic or Manual boost and storage charge functions help maintain battery condition
  • Digital Microprocessor Technology
  • Temperature compensation for battery charging
  • Low Output Ripple and superb line regulation
  • AC input Under/Over voltage Protection
  • Battery charger output over voltage/ current protection
  • Output short circuit and Inversion polarity with auto recovery
  • Automatic power de-rating at high ambient temperatures
  • Check out more features here

Product Literature &
APT Control System Modules

Engineering Bid Specifications

Installation Drawings & Diagrams

Coming Soon!

For 35 kV system projects, also explore MEC38 switchgear for 35 kV systems .

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MEA-SERIES

Metal Enclosed/Clad VCB Switchgear

2.4kV - 38kV Draw-Out Vacuum Circuit Breaker Switchgear

Configurable medium-voltage switchgear for distribution, automatic transfer, generator paralleling, and other critical power applications.

MEA-Series metal enclosed switchgear lineup
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View Brochure Request a Quote View Specifications
Voltage Range
2.4kV - 38kV
Main Bus Ampacity
1200A - 3000A 1200A, 2000A, and 3000A ratings
Interrupting Time
3 Cycles
Applicable Standards
Project Dependent
Enclosures
NEMA 1, 3R & PwrHouse
Designed
Custom Configurations

Key Specifications

Voltage
2.4kV - 38kV
Applicable Standards
Project Dependent
Main Bus Ampacity
1200A - 3000A
Enclosures
NEMA 1, 3R & PwrHouse
Interrupting Time
3 Cycles
Designed
Custom Configurations

Overview

The MEA-Series is a metal enclosed/clad draw-out vacuum circuit breaker switchgear platform for medium-voltage systems from 2.4kV through 38kV.

Draw-out vacuum circuit breakers, silver-plated copper bus, instrument transformers, protective relaying, and configurable controls support distribution, transfer, and paralleling applications.

The MEA-Series can be configured for indoor NEMA 1, outdoor NEMA 3R non-walk-in, or outdoor walk-in PwrHouse installations to meet project-specific requirements.

Explore Configurations

Standard Construction

MEA-Series standard switchgear construction
  1. 01 Draw-Out Vacuum Circuit Breakers
  2. 02 Silver-Plated Copper Bus
  3. 03 Front-Accessible CTs & Drawout PTs
  4. 04 NEMA 1 / NEMA 3R Enclosures

Final configuration may vary by project requirements.

Why It Matters

System Protection

Vacuum breakers and protective relaying support medium-voltage fault protection.

Operator Safety

Interlocks and automatic shutters isolate energized primary connections.

Serviceable Design

Draw-out breakers and front-accessible CTs support inspection and maintenance.

Flexible Operation

Supports distribution, transfer, paralleling, and project-specific control schemes.

How It Works

Medium-voltage switchgear one-line diagram A medium-voltage source connects through a draw-out vacuum circuit breaker to the main bus and feeder breaker. SOURCE MAIN BUS LOAD

Incoming medium-voltage sources connect to the main bus through draw-out vacuum circuit breakers. CTs, PTs, protective relays, and project-specific controls monitor system conditions and command breaker operation.

View Detailed Diagram Explore Configurations
MEA-Series switchgear configuration drawing

Need Help Selecting the Right Configuration?

Not sure which voltage, bus rating, enclosure, or control configuration your application requires? Our sales team can help you select the right MEA-Series switchgear for your project.

Voltage Bus Rating Enclosure Controls

Our team can help with:

  • Application review
  • Configuration recommendations
  • Customized solutions
  • Fast response from our sales team
Talk to a Product Specialist

Technical Specifications

Voltage
2.4kV–38kV, 3Ø, 3 wire
Main Bus Ampacity
1200A, 2000A, 3000A
Breaker Type
Draw-out vacuum circuit breaker
Interrupting Capacity
25kA–63kA Voltage and breaker rating dependent
Enclosure
NEMA 1, NEMA 3R, or outdoor walk-in PwrHouse
Section Depth
72″–124″ Voltage and configuration dependent
Main Bus
Silver-plated copper
Instrument Transformers
Fixed/draw-out PTs; front-accessible CTs

Applications

Medium-voltage switching, transfer, paralleling, and distribution applications.

Utility & Generator Paralleling

Integrates utility and generator sources.

Automatic Transfer Systems

Supports open- and closed-transition transfer.

Medium-Voltage Distribution

Routes protected power to multiple feeders.

Renewable Energy Collection

Supports solar, wind, and other renewable sources.

Application suitability depends on system voltage, fault duty, protection, and control requirements.

FAQ

What is MEA-Series switchgear?

The MEA-Series is metal enclosed/clad draw-out vacuum circuit breaker switchgear for medium-voltage systems from 2.4kV through 38kV.

What voltage and bus ratings are available?

The MEA-Series covers 2.4kV through 38kV system voltage with 1200A, 2000A, or 3000A main bus ampacity options.

What enclosure options are available?

Available configurations include NEMA 1 indoor, NEMA 3R outdoor non-walk-in, and outdoor walk-in PwrHouse enclosures.

Can the MEA-Series support transfer or paralleling?

The MEA-Series can be configured for open- or closed-transition automatic transfer, Main-Tie-Main control, and generator paralleling applications.

What features support serviceability and safety?

Draw-out breakers, mechanical racking interlocks, automatic shutters, position indication, and front-accessible current transformers support operation and maintenance.

Technical Resources

MEA Brochure

View Online

Engineering Bid Spec

View Online

MV ATS Brochure

View Online

Outdoor Enclosures

View Online

Ready to Get Started?

We are committed to providing expert support for your medium-voltage switchgear needs. Our team can help review voltage, bus ampacity, enclosure, protection, control, and documentation requirements.

Contact our sales team today to discuss your application. We’ll help you develop the right MEA-Series configuration for your system.

Request a Quote