The DCBD Single is G Corner's high-current DC disconnector for direct connection to laminated busbar systems, covering single-unit current ratings from 18 kA to 72 kA. With solid silver contacts, patented fixed carriers, and a visible open gap, it provides operators with reliable off-load isolation and immediate visual confirmation that the circuit is de-energised.
Product Description
The DCBD Single is a high-current DC disconnector rated from 18 kA to 72 kA at up to 1,500 Vdc, designed for off-load isolation in busbar and rectifier installations. The moving contacts engage directly with patented fixed carriers attached to the busbar plates, creating a clearly visible open gap when in the isolated position. This gives operators immediate visual confirmation that the circuit is de-energised before any maintenance work begins.
Contacts are manufactured from solid silver, providing excellent conductivity and resistance to surface degradation in industrial environments. Busbar plates are available in copper or aluminium and can be connected to the busbar system by bolted or welded joints, depending on the requirements of the installation.
The DCBD Single is electrically actuated as standard and is designed for horizontal mounting. It includes deformability in all three axes as standard, allowing the disconnector to absorb the thermal expansion and contraction of the busbar system over its operational life without requiring additional flexible busbars at the connection point. Higher deformability options are also available.
All G Corner products are engineered to the specific requirements of each application. The DCBD Single represents what we can achieve for high-current disconnection on laminated busbar systems - the exact configuration, current rating, and options will be developed with you to suit your installation.
Features
The following features are standard to the DCML
Maximum Current Rating
Impulse voltage withstand - open position
Short Circuit Withstand (1 second)
Use cases
Providing safe and reliable isolation of a circuit or section of plant before maintenance work begins. The DCBD Single's visible open gap gives operators immediate confirmation that the circuit is de-energised, supporting safe working practices and compliance with isolation procedures.
Specifications
The values below represent the specification of a typical DCBD Single configuration. All products are engineered to order and exact specifications are agreed with the customer.
Product Classification Product Data
Electrical Ratings Product Data
Dielectric Performance Product Data
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Environmental Product Data
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