ECB Industrial & Commercial Enclosed Circuit Breakers
Spike Electric Controls provides ECB enclosed circuit breakers for industrial and commercial power distribution applications. Available with multiple NEMA enclosure configurations, ECB solutions are designed to provide reliable circuit protection and operation in indoor, outdoor and demanding industrial environments.
With configurations for general-purpose, rainproof, water-resistant, dust-resistant and process-industry applications, Spike Electric can help customers select an enclosed circuit breaker suited to the electrical requirements and operating conditions of their project.
Enclosed Circuit Breakers for Industrial & Commercial Applications
An enclosed circuit breaker combines circuit protection and switching within a dedicated protective enclosure.
Spike Electric ECB configurations are available for applications ranging from protected indoor installations to outdoor and harsh industrial environments where equipment may be exposed to rain, water, dust, oil, coolant or other contaminants.
Available enclosure configurations include:
- NEMA 1
- NEMA 3R
- NEMA 4/4X
- NEMA 5
- NEMA 12
Ratings and available configurations vary by enclosure type and application.
- NEMA 1 General-Purpose Enclosed Circuit Breakers
- NEMA 3R Rainproof Enclosed Circuit Breakers
- NEMA 4/4X & NEMA 5 Water- and Dust-Resistant Enclosures
- NEMA 12 Dustproof Enclosed Circuit Breakers
Surface or Flush Mounting
NEMA 1 ECB configurations are designed for protected indoor installations where a general-purpose enclosure is appropriate.
Typical applications include:
- Commercial buildings
- Apartment buildings
- Indoor electrical rooms
- General-purpose commercial facilities
- Protected industrial environments
The existing ECB configuration is identified from 15-1200A, with ratings up to 600 Vac and 500 Vdc.
The circuit breaker is front operable and can be padlocked in the OFF position. Surface-mounted and flush-mounted enclosure options are available.
Surface Mounting
NEMA 3R ECB configurations are designed for outdoor installations requiring a weather-resistant enclosure.
The circuit breaker is housed inside a weatherproof sheet-steel enclosure and can be used as a main disconnect and protective device for feeder circuits.
Key Features
- Outdoor rainproof construction
- Surface-mounted enclosure
- Interchangeable hubs through 400A
- Front-operable circuit breaker
- Padlockable OFF position
- Ratings up to 600 Vac and 500 Vdc
- Suitable for outdoor feeder applications
The existing product information identifies NEMA 3R configurations from 15-3000A.
Type 304 Stainless Steel | Surface Mounting
For demanding industrial environments, Spike Electric offers Type 304 stainless-steel ECB enclosure configurations designed for applications requiring protection from water and dust.
These enclosures are manufactured without knockouts or other unnecessary openings and are well suited for process-industry environments.
Typical applications include:
- Dairies
- Breweries
- Paper mills
- Mining environments
- Process facilities
- Wet industrial locations
- Dust-prone environments
The operating handle can be padlocked in the OFF position and is interlocked to help prevent the enclosure door from being opened while the breaker is in the ON position.
The existing product information identifies these configurations from 15-3000A, with ratings up to 600 Vac and 500 Vdc.
Surface Mounting
NEMA 12 enclosed circuit breakers are designed for industrial environments where equipment may be exposed to severe operating conditions involving:
- Oil
- Coolant
- Dust
- Dirt
- Other foreign materials
The standard enclosure is designed without knockouts or other openings.
The operating handle can be padlocked in the OFF position, and the cover is interlocked with the operating mechanism to help prevent access while the circuit breaker is in the ON position.
The existing product information identifies NEMA 12 configurations from 15-3000A, with ratings up to 600 Vac and 500 Vdc.
A semi-dust-tight NEMA 12 configuration with knockouts is also available. Contact Spike Electric for applicable ratings and configuration details.
Need Help Selecting an ECB Enclosed Circuit Breaker?
Choosing the right enclosed circuit breaker requires consideration of amperage, voltage, enclosure type, mounting requirements and the operating environment.
Spike Electric Controls can help you identify an ECB configuration that meets the requirements of your industrial or commercial application.
ECB Features & Benefits
Spike Electric ECB enclosed circuit breakers incorporate features designed to support reliable operation, equipment protection and easier access for installation and maintenance.
Available Features Include:
- Padlockable OFF position
- Front-operable breaker design
- Three-point latching system on applicable flange-style configurations
- Interlocked handles on applicable NEMA 3R, 4/4X, 5 and 12 enclosures
- Door interlocking designed to restrict access while the breaker is ON
- Interchangeable hubs
- Surface- and flush-mounting options on applicable configurations
- Multiple NEMA enclosure types
- Numerous factory options
Built for a Range of Operating Environments
Selecting the correct enclosure is an important part of specifying an enclosed circuit breaker.
- NEMA 1
Designed for protected, general-purpose indoor installations. - NEMA 3R
Designed for outdoor installations requiring protection from rain and weather. - NEMA 4/4X & NEMA 5
Designed for demanding environments requiring increased protection from water and dust, including process-industry applications. - NEMA 12
Designed for industrial environments where oil, coolant, dust and other foreign materials may be present.
Industrial & Commercial Applications
- Commercial buildings
- Apartment buildings
- Manufacturing facilities
- Industrial electrical systems
- Indoor power distribution
- Outdoor power distribution
- Feeder circuits
- Process plants
- Dairies
- Breweries
- Paper mills
- Mining environments
- Wet industrial locations
- Dust-prone facilities
- Facilities where oil or coolant may be present
Why Choose an Enclosed Circuit Breaker?
An enclosed circuit breaker provides circuit switching and protection within a dedicated enclosure selected for the installation environment.
When specifying an ECB configuration, important considerations include:
- Continuous-current requirements
- System voltage
- Indoor or outdoor installation
- NEMA enclosure type
- Environmental exposure
- Surface or flush mounting
- Feeder or service application
- Padlocking requirements
- Required factory options
Spike Electric can help customers evaluate these requirements and identify an appropriate configuration for the application.
Frequently Asked Questions
What is an enclosed circuit breaker?
An enclosed circuit breaker combines a circuit breaker with a protective enclosure. It provides circuit switching and protection while allowing the enclosure configuration to be selected based on the installation environment.
What NEMA enclosure options are available for ECB circuit breakers?
The ECB product information identifies NEMA 1, NEMA 3R, NEMA 4/4X, NEMA 5 and NEMA 12 enclosure configurations.
Are ECB circuit breakers available for outdoor installations?
Yes. NEMA 3R configurations are designed for outdoor applications requiring protection from rain and weather.
Can ECB enclosed circuit breakers be padlocked?
Yes. The ECB configurations described by Spike Electric include provisions for padlocking the operating mechanism in the OFF position.
What is the difference between NEMA 1 and NEMA 3R?
NEMA 1 is designed for protected indoor general-purpose applications. NEMA 3R is designed for outdoor installations requiring protection from rain and weather exposure.
When should a NEMA 4/4X enclosure be considered?
NEMA 4/4X configurations are intended for more demanding environments where equipment may be exposed to water, dust or process-industry conditions.
What is a NEMA 12 enclosed circuit breaker used for?
NEMA 12 configurations are designed for industrial environments where oil, coolant, dust and other foreign materials may be present.
What amperage ratings are available?
Available amperage ratings depend on the enclosure configuration. The existing ECB product information identifies a 15-1200A range for NEMA 1 configurations and ratings extending to 3000A for several other enclosure configurations. Contact Spike Electric to confirm the appropriate rating for your application.