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US 7,924,136 B2Granted
Fusible switching disconnect modules and devices
AssigneeCooper Technologies Company
InventorsMatthew R. Darr, Robert Stephen Douglass, Matthew Thomas Dowil
Life of this patent
Estimating the term…
Abstract
A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and switchable contacts for connecting the fuse to circuitry. A tripping mechanism is provided to disconnect the switchable contacts when predetermined circuit conditions occur.
Claims23
A fusible switch disconnect module comprising:
- a disconnect housing adapted to directly receive at least one overcurrent protection fuse therein without use of a fuse carrier;
- the at least one overcurrent protection fuse including an insulative body, first and second conductive terminal elements coupled to the body, and a fuse element establishing a circuit path between the first and second conductive terminal elements;
- the fuse element configured to melt and open the circuit path between the first and second conductive terminal elements in response to predetermined current conditions in the circuit path, the at least one overcurrent protection fuse being removably insertable and replaceable in the disconnect housing when the circuit path has opened;
- line side and load side terminals respectively communicating with the first and second conductive terminal elements of the at least one overcurrent protection fuse when inserted into the disconnect housing;
- at least one stationary contact and at least one movable contact being selectively positionable along a linear axis with respect to the stationary contact between an open position and a closed position to connect or disconnect the circuit path through the fuse;
- an actuator causing the at least one movable contact to be positioned between the opened and closed position;
- and
- at least one bias element urging the switchable contact to the open position.
5 more elements
A fusible switch disconnect switch device comprising:
- a disconnect housing adapted to directly receive a fuse therein without use of a fuse carrier;
- the fuse being removably insertable in the housing and including an insulative housing separately provided from the disconnect housing, first and second conductive terminal elements coupled to the insulative housing, and a meltable fuse element establishing a circuit path between the first and second conductive terminal elements, the meltable fuse element configured to open the circuit path in response to predetermined current conditions in the circuit path;
- line side and load side terminals respectively communicating with the first and second conductive terminal elements of the fuse when the fuse is inserted into the housing;
- at least one stationary contact and at least one movable contact being selectively positionable along a linear axis with respect to the stationary contact between an open position and a closed position to connect or disconnect an electrical connection through the fuse;
- an actuator causing the at least one movable contact to be positioned between the opened and closed position;
- at least one bias element urging the movable contact to the open position;
- and
- a tripping mechanism counteracting the at least one bias element under normal operating conditions.
5 more elements
Dependencies are inferred from the claim text.