They are effective at reducing voltage transients and increasing the operating life of switching devices such as relays, contactors, and semiconductor switches.
New values include higher voltage networks, up to 1600 Vdc/ 660 Vac and more capacitance and resistor values to choose from at each voltage.
Cornell Dubilier stocks Type Q/QRL at their key franchised distributor sites for quick turnaround for prototype and preproduction quantities.