Heavy duty electrical protection from FDB

FDB 19 series is a range of heavy duty electrical protection units designed to overcome inherent earth leakage or inrush currents. The units combine a variable sensitivity and time delay RCD, together with a 3 pole MCCB or On Load Switch + solid Neutral (minimum 15KA) to provide overcurrent and short circuit protection (4 pole option available).

A standard feature of the FDB 19 is its non-fail safe operation, ideal for primary breaker installations or those that are unmanned or prone to supply interruption. A fail-safe version requiring reset of MCCB on restoration of a supply interruption is also available. Specifications of the series cover 380/440V with tripping levels adjustable from 10mA to 640mA and 100mA to 6.4A as standard (1-64A also available). An Earth Fault Ammeter can also be fitted to front of enclosure to indicate levels of Earth Leakage. Load current ratings available cover 15A to 400A. The complete assembly is housed in a lockable IP65 Sheet metal or IP54 GRP enclosure to ensure resistance to rough treatment and environmental factors, often encountered in problem installations. Further information on FDB Electrical products and services may be found at: www.fdb.uk.com.