

Proven Component Integration
PowerClad can be configured with ABB vacuum circuit breakers, protective relays, and control technology—integrated into a Spike-engineered and manufactured switchgear platform.
PowerClad Air-Insulated Metal-Clad Switchgear (5–38 kV)
Dependable power. Safer operation. American-built execution.
PowerClad delivers reliable medium-voltage protection and control for industrial, utility, commercial, and mission-critical power systems. Its drawout vacuum circuit breaker design, grounded metal compartmentalization, insulated primary bus, and application-specific controls create a durable platform for new construction, expansions, and modernization projects.
Available in indoor and outdoor configurations, PowerClad is engineered around each project’s electrical ratings, protection scheme, footprint, environmental conditions, and service requirements. Optional arc-resistant construction and NRTL listing or labeling are available on qualifying configurations when specified.
Configurable Around the Application
- Primary- and control-circuit dielectric testing
- Mechanical operation, interlock, and racking checks
- Wiring, metering, protection, and functional verification
- Customer witness testing and project-specific FAT when specified

Need Help Selecting the Right Metal-Clad Switchgear?
Spike engineers can help define the ratings, configuration, protection, enclosure, and qualification path for your project.
| Rating | Value |
|---|---|
| Rated maximum voltage | 4.76 kV |
| Lightning impulse withstand (BIL) | 60 kV peak |
| Power-frequency withstand (1 min) | 19 kV rms |
| Continuous current | Up to 4000 A |
| Short-circuit interrupting current | Up to 63 kA rms symmetrical |
| Short-time withstand current | Up to 63 kA rms symmetrical, 2 s |
Download Spec Sheet: PowerClad 5 kV Catalog (PDF)
| Rating | Value |
|---|---|
| Rated maximum voltage | 15 kV |
| Lightning impulse withstand (BIL) | 95 kV peak |
| Power-frequency withstand (1 min) | 36 kV rms |
| Continuous current | Up to 4000 A |
| Short-circuit interrupting current | Up to 63 kA rms symmetrical |
| Short-time withstand current | Up to 63 kA rms symmetrical, 2 s |
Download Spec Sheet: PowerClad 15 kV Catalog (PDF)
| Rating | Value |
|---|---|
| Rated maximum voltage | 27 kV |
| Lightning impulse withstand (BIL) | 125 kV peak |
| Power-frequency withstand (1 min) | 60 kV rms |
| Continuous current | Up to 3000 A |
| Short-circuit interrupting current | Up to 40 kA rms symmetrical |
| Short-time withstand current | Up to 40 kA rms symmetrical, 2 s |
Download Spec Sheet: PowerClad 27 kV Catalog (PDF)
| Rating | Value |
|---|---|
| Rated maximum voltage | 38 kV |
| Lightning impulse withstand (BIL) | 150 kV peak |
| Power-frequency withstand (1 min) | 80 kV rms |
| Continuous current | Up to 3000 A |
| Short-circuit interrupting current | Up to 40 kA rms symmetrical |
| Short-time withstand current | Up to 40 kA rms symmetrical, 2 s |
Download Spec Sheet: PowerClad 38 kV Catalog (PDF)


- Standards, Qualifications & Project Options
- Customizable Design Options
- Field Service & Lifecycle Support
PowerClad is engineered to applicable ANSI/IEEE requirements, with qualification and certification options matched to the exact configuration.
- Circuit breakers selected and tested to applicable IEEE C37.04 and IEEE C37.09 requirements
- Arc-resistant construction available only on configurations qualified to IEEE C37.20.7
- Optional NRTL listing or labeling available on qualifying configurations when specified
- Optional NRTL listing or labeling available on qualifying configurations when specified
- Project-specific seismic qualification available to the applicable code and site criteria
- Domestic-content review and supporting documentation available for qualifying projects
- System ratings, protection philosophy, and relay selection
- Indoor or outdoor construction and access arrangement
- Top or bottom cable entry, bus transitions, and retrofit interfaces
- Main, tie, feeder, metering, auxiliary, and automatic transfer sections
- Communications, remote operation, and condition monitoring
- Paint, finish, environmental, and project-documentation options
Spike supports the system from application review through startup and long-term service.
- Specification review, submittals, and coordination
- Customer witness testing and factory acceptance testing
- Installation support, startup, and commissioning
- Operator and maintenance training
- Spare parts, replacement breakers, inspection, and modernization


Type 1 — Indoor Configuration
Designed for installation inside electrical rooms, substations, industrial facilities, and other protected indoor environments. The enclosure helps prevent accidental contact with energized equipment and limits the entry of falling dirt.
Type 3R — Outdoor Configuration
Designed for outdoor installation with protection against rain, sleet, snow, and external ice formation. Outdoor lineups can be engineered for the project’s temperature, wind, corrosion, access, and structural requirements.
What is metal-clad switchgear?
Metal-clad switchgear is medium-voltage switchgear that uses drawout circuit breakers and grounded metal barriers to separate the breaker, main bus, cable terminations, and low-voltage control compartments. This compartmentalization supports safer operation, inspection, and maintenance.
How does metal-clad differ from metal-enclosed switchgear?
All metal-clad switchgear is metal-enclosed, but metal-clad construction adds defined compartmentalization, drawout circuit breakers, insulated primary conductors, shutters, interlocks, and grounded metal barriers under IEEE C37.20.2.
Can PowerClad be customized for specific applications?
Yes. Spike configures the ratings, lineup arrangement, protection, metering, communications, cable entry, bus transitions, enclosure, monitoring, and qualification options around the project.
What maintenance is required?
Maintenance depends on operating duty, environment, breaker model, and installed accessories. Spike provides project-specific manuals and can support inspection, testing, breaker service, spare parts, and modernization.
Is NRTL listing available?
Optional NRTL listing or labeling may be available for qualifying configurations when specified early in the project. The appropriate path depends on the design, production volume, applicable standard, and installation.
