Dual Circuit Breaker Enclosure – NEMA Rated up to 600V
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Dual Circuit Breaker Enclosure – NEMA Rated up to 600V
Dual Circuit Breaker Enclosure – NEMA Rated up to 600V
Product Details
Custom dual circuit breaker enclosure designed to house two moulded-case circuit breakers in one compact electrical cabinet. Available for indoor or outdoor commercial and industrial power distribution applications.
Each enclosure is built according to the required breaker amperage, voltage, interrupting rating, cable arrangement and enclosure type. Breakers can be configured to protect two separate loads, machines, feeders or pieces of electrical equipment.
Optional accessories such as shunt trips, auxiliary contacts, alarm contacts, motor operators and remote-control components can be added according to the project requirements.
Product Features
- Two circuit breakers installed in one enclosure
- Custom breaker sizes and configurations
- Two-pole or three-pole breakers
- Available for systems up to 600VAC
- Indoor or outdoor enclosure options
- Independent operation of each breaker
- Common incoming feed or separate incoming feeds
- Copper or aluminium cable connections
- Top or bottom cable entry
- Lockable breaker operating handles
- Wall-mounted or floor-mounted construction
- Custom circuit labels and engraved nameplates
- Built for new installations and retrofit applications
Available Breaker Ratings
Custom configurations are available with breaker ratings from 15A through 1200A, depending on the selected breaker manufacturer and enclosure design.
Common system voltages include:
- 120/240V
- 208Y/120V
- 240V
- 480V
- 480Y/277V
- 600V
- 600Y/347V
Available breaker protection can include:
- Thermal-magnetic trip
- Adjustable thermal-magnetic trip
- Electronic trip
- LSI protection
- LSIG protection
- Ground-fault protection
Available NEMA Enclosures
NEMA 1
Indoor general-purpose enclosure for clean and dry electrical rooms.
NEMA 3R
Outdoor weather-resistant enclosure for protection against rain, snow and external ice formation.
NEMA 4
Indoor or outdoor watertight enclosure for industrial environments.
NEMA 4X
Corrosion-resistant stainless-steel enclosure for harsh or washdown environments.
NEMA 12
Indoor industrial enclosure for protection against dust, dirt, oil and dripping liquids.
Optional Breaker Accessories
The following accessories can be added when required:
- Shunt trip
- Auxiliary contacts
- Bell alarm contacts
- Undervoltage release
- Motor operator
- Mechanical interlock
- Key interlock
- Padlockable breaker handle
- Door-interlocked operating handle
- Emergency power-off push button
- Remote trip push button
- Control relay
- Control power transformer
- Pilot lights
- Terminal blocks
- Surge protective device
- Ground-fault protection
- Communication or metering accessories
Shunt-trip accessories can be supplied in common control voltages such as 24VDC, 48VDC, 120VAC, 208VAC and 240VAC, subject to breaker availability.
Breaker Manufacturers
The enclosure can be configured using suitable new or replacement circuit breakers from manufacturers such as:
- Eaton / Cutler-Hammer
- Schneider Electric / Square D
- Siemens
- ABB
- GE
- Noark
- Westinghouse
- Other specified manufacturers
Breaker brand and series will be selected according to the required amperage, voltage, interrupting capacity, availability and project specifications.
Common Applications
- Dual equipment disconnect
- Industrial machinery protection
- HVAC equipment
- Pumps and compressors
- Commercial kitchen equipment
- EV charging equipment
- Generator auxiliary systems
- Solar power equipment
- Building distribution systems
- Emergency shutdown systems
- Fire-alarm-controlled equipment
- Retrofit electrical installations
- Separate protection for two loads
- Main and auxiliary breaker applications
Common Configurations
Two Equal-Sized Breakers
Two breakers with the same amperage installed in one enclosure.
Example:
- Two 30A, three-pole breakers
- Two 60A, three-pole breakers
- Two 100A, three-pole breakers
Two Different-Sized Breakers
Two breakers with different amperage ratings installed in one enclosure.
Example:
- One 100A breaker and one 30A breaker
- One 200A breaker and one 60A breaker
- One 400A breaker and one 100A breaker
Main and Auxiliary Breaker
One larger main breaker and one smaller auxiliary breaker installed in the same enclosure.
Remote-Trip Configuration
One or both breakers equipped with optional shunt trips for remote opening through a push button, relay, PLC, fire-alarm system or other control circuit.
Information Required for a Quote
Please provide:
- Quantity of enclosures
- Amperage of each breaker
- Number of poles
- System voltage
- Required interrupting rating
- Indoor or outdoor installation
- Required NEMA rating
- Breaker manufacturer preference
- Incoming cable size
- Outgoing cable size
- Top or bottom cable entry
- Common or separate incoming feeds
- Required breaker accessories
- Applicable certification or inspection requirements
Custom-Built Electrical Assembly
This is a custom-configured product. Breaker selection, enclosure dimensions, pricing, lead time and certification requirements will depend on the approved electrical specifications.
Contact Ampstate for pricing, availability, drawings and configuration assistance.
Ampstate Electric Corporation
Serving customers across Canada and the United States
Phone: 1-877-780-4466
Email: sales@ampstate.com
Frequently Asked Questions
Common questions about ordering, quoting, shipping, and supplying industrial electrical equipment from Ampstate.
What products does Ampstate supply?
Ampstate supplies MCC buckets, circuit breakers, bus plugs, disconnect switches, panelmount switches, transformers, switchgear, contactors, starters, overloads, relays, trip units, and other industrial electrical components.
How do I request a quote?
You can request a quote through our contact page or email sales@ampstate.com. Please include part numbers, photos, nameplate details, voltage, amperage, quantity, and required delivery date.
Can you help identify a part from photos?
Yes. Send clear photos of the nameplate, front view, side view, labels, mounting details, and inside view if available. Our team can help identify or match the required electrical equipment.
Do you supply new, used, or refurbished equipment?
Depending on availability and the customer requirement, Ampstate may offer new, surplus, used, tested, or refurbished equipment. The condition will be clearly stated on the quote.
Do you ship outside Canada?
Yes. Ampstate supports customers across Canada, the United States, and worldwide. Shipping options depend on item size, weight, destination, and urgency.
Can you supply custom MCC buckets?
Yes. Ampstate can support custom MCC bucket requirements, including feeder buckets, starter buckets, VFD buckets, soft starter buckets, and replacement units. Photos, dimensions, and existing MCC details help us quote accurately.
What information should I send for an MCC bucket quote?
Please send the MCC manufacturer, series, bucket size, voltage, amperage, starter type, breaker or fuse requirement, control voltage, door layout, photos, and any drawings or existing part numbers.
Do you provide warranty?
Warranty depends on the product type and condition. Warranty terms will be listed on the quote or invoice before purchase.
