Articles about quad breaker
Thinking about installing a Sub Panel? Here is what must be considered first, and you may find that you really do not need a sub panel at all.
How a Quad Electrical Circuit Breaker Could Be Used – In this case, the 2-pole may be replaced by a quad 30 amp circuit breaker which will provide the 240 volt circuit for the electric dryer. The circuit wiring configuration is critical and must be done correctly in order for both of the circuits to work correctly, and of course, the quad circuit breaker must be available for that particular make and model electrical panel.
Quad Circuit Breakers Save Space in Approved Electrical Panels – As described in this question, a quad circuit breaker may be used in panels that are approved for tandem circuit breakers, and a quad breaker is essentially two special tandem circuit breakers that are connected and have the required tie bar or handle for the 240 volt circuits.