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Low voltage switchgear is an economically
designed independent vertical switchgear with separate outer
compartments, featuring a built-in main circuit breaker (ACB
or MCCB), instrumentation, and control and protection systems.
Its vertical bus and cable ground is located at the common
compartment. |
| Switchgear using ACB (Air Circuit Breaker) usually
comes with a drawer for easy testing and repair, but
it can be custom-ordered to come in a molded case. Likewise,
switchgear with MCCB (Molded Case Circuit Breaker) can
also be designed with a drawer, while PT (Potential
Transformer) for bus voltage monitoring comes in a drawer
to be installed in the PT compartment. |
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| - Standard |
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• IEC 439, 144
• ANSI C37.20.1
• JEM 1265 |
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| - Case |
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• Standard vertical closed case with bolted
assembly using steel frame.
• Custom order
options (System Structure Chart).
• Custom
order options (System Structure Chart).
•
Push hole for maintenance without removing MCCB’s unit
cover.
• Compact sized for easy application
of electric room.
• Vertically installed external
terminal plate for easy cabling.
• Easy bus
access even with bus duct.
• Primary and
secondary door standard with optional tertiary door.
• Safe structure with safety covers installed
inside ACB Front Panel and case for
front
door opening.
• Door-type safety cover on
the reverse side for safe maintenance and repair.
• Vertical or horizontal MCCB Unit with standard
units per ampere frame for easy
maintenance
and repair. |
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| - Application
and Characteristics |
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• Compact sized vertical closed type
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Applicable to low voltage switchgear below 600V for
power plants and
transmission systems.
• Electronics type ACB application and multifunctional
relay systems
• Compact size for easy application
of electric room.
• Vertically installed
external terminal plate for easy cabling. |
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| - Standard |
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