The DCL represents a new generation of high speed electro-mechanical tripping relays for power utility protection and control applications.
Application of the DCL multi-contact high-speed trip relays ensures fast operation of less than 8 ms with minimal contact bounce.

The effect of a fault on a power system is dependent on the speed with which the fault can be detected and isolated.
Modern protection schemes incorporate ever increasing functionality through the application of digital techniques to protection relay technology. The requirement for highly reliable tripping and control relay elements does however remain and often constitutes a signifi cant cost and space requirement when considering protection panel designs.
The DCL system fulfils this need by providing a compact, flexible and high performance solution, while at the same time reducing the cost and lead times normally associated with this class of device.
A wide voltage operating range and user selectable low or high burden tripping relay operation reduces the number of model variations.