Relay

A relay, comprising a housing, a first resistor, and a plurality of contact modules,

• an interior of the housing having an accommodation space,
• a plurality of drive shafts respectively corresponding to the plurality of contact modules and being disposed coaxially, and the plurality of drive shafts being movable in an axial direction of the drive shafts, and wherein
• the plurality of contact modules comprise a first contact module and a second contact module, the first contact module comprises a first terminal and a second terminal, the second contact module comprises a third terminal and a fourth terminal, the first terminal of the first contact module is electrically connected to the third terminal of the second contact module via the first resistor, and the second terminal of the first contact module is electrically connected to the fourth terminal of the second contact module, and
• each of the contact modules comprises:
• a terminal assembly, comprising two terminals spaced apart from each other and disposed on the housing, each of the two terminals at least partially extending into the accommodation space to form one of two static contacts;
• a movable contact plate, movably disposed in the accommodation space, the movable contact plate being configured to contact the two static contacts to electrically couple the two terminals;
• and
• a drive assembly, comprising a drive shaft of the plurality of drive shafts and a drive unit that drives the drive shaft, the drive shaft being connected to the movable contact plate, and the drive unit being configured to drive the movable contact plate via the drive shaft to contact or be separated from the two terminals.