Resources Contact Us Home
Switchboards and panelboards having interlock and load selection capabilities

Image Number 2 for United States Patent #5151842.

Switchboard and panelboard enclosures include a main electronic circuit breaker interconnected with a plurality of branch circuit breakers by means of a corresponding plurality of terminal boards. Zone-Selective-Interlock and Load Selection functions are achieved by signals transmitted between the branch circuit breakers and the main circuit breaker. The accessories within the branch circuit breakers respond to tripping signals from the main circuit breaker to provide the Zone-Selective-Interlock and Load Selection functions.

  Recently Added Patents
Image forming apparatus acquiring image processing time detected when the acquired time is longer that the previously set time and to correct output image density using generated patch pattern
Method and apparatus for connecting signal lines of multiple layers to certain contacts while preventing connections with other contacts
Method to dynamically tune precision resistance
Methods for measuring media performance associated with adjacent track interference
Method and apparatus for supporting HARQ
Lead with lead stiffener for implantable electrical stimulation systems and methods of making and using
  Randomly Featured Patents
Chrysanthemum plant named Flex
Magnetic resonance imaging agents
Indication of user equipment mobility state to enhance mobility and call performance
High availability synchronization architecture
Semiconductor probe and alignment system
Novel reagent
Method of making superplastically formed and diffusion bonded articles and the articles so made
Diagnosis of fertility conditions using a serine protease
Circuit and method of selectively activating feedback devices for local bit lines in a memory
Selective serotonin 2A/2C receptor inverse agonists as therapeutics for neurodegenerative diseases