Abstract: The present solution is directed to systems and method for electrically disconnecting at least a portion of a battery pack using a busbar. The present solution can include a busbar to electrically couple with a battery pack between two groups of battery cells of the battery pack. The busbar can dispose at an opening of a housing of the battery pack. The busbar can be exposed by an access cover. The busbar can include a jumper connector electrically coupling one body of the busbar electrically coupled with a first group of battery cells of the battery pack with another body of the busbar electrically coupled with a second group of battery cells of the battery pack. The jumper connector can be accessible via the opening under the access cover to allow electrical decoupling of the first or second group of battery cells.

Abstract: A power switch device has a housing, a movable shuttle and at least one shape memory alloy actuator. The housing has a cavity and stationary current carrying contacts which extend through the housing to the cavity. The movable shuttle with a bridge contact provided in the cavity. The at least one shape memory alloy actuator is attached to a first end of the shuttle and to a first end of the housing. The at least one shape memory alloy actuator is configured to respond to a first activation signal. The at least one shape memory alloy actuator contracts from an initial shape in response to the first actuation signal to move the shuttle and the bridge contact toward the stationary current carrying contacts to a closed position in which the bridge contact is positioned in electrical engagement with the stationary current carrying contacts.

Abstract: A power switch device has a housing, a movable shuttle and at least one shape memory alloy actuator. The housing has a cavity and stationary current carrying contacts which extend through the housing to the cavity. The movable shuttle with a bridge contact provided in the cavity. The at least one shape memory alloy actuator is attached to a first end of the shuttle and to a first end of the housing. The at least one shape memory alloy actuator is configured to respond to a first activation signal. The at least one shape memory alloy actuator contracts from an initial shape in response to the first actuation signal to move the shuttle and the bridge contact toward the stationary current carrying contacts to a closed position in which the bridge contact is positioned in electrical engagement with the stationary current carrying contacts.