Bowthorpe

The Bowthrorpe Modular Distribution Surge Protector (MDSP) should be installed at the point of cable entry to a building containing sensitive electrical or electronic equipment. The MDSP is normally used as part of a totally integrated surge protection system and as such should be considered as the first line of defence. Local distribution panels and equipment connected 'downstream' should also be protected in order to achieve a systematic and co-ordinated approach to surge protection.
The Bowthorpe MDSP provides suppression from mainsborne voltage spikes and surges that can occur between phases, phase to neutral, phase to earth and neutral to earth, thus ensuring protection in all modes. This protection is achieved by using carefully matched high energy absorbing elements.

The MDSP features exceptionally high surge current handling capabilities which operates in two stages to ensure continuity of transient suppression. Under normal conditions the MDSP will automatically reset after clamping smaller, more commonly occurring surges, and two green lights on each of the Line modules indicate that full protection is present. However, should a surge current in excess of 90kA, 150kA or 300kA (depending on the model selected), appear on the line it will be clamped by the MDSP but the first protection stage may possibly suffer damage and fail safe. In this instance one green light from each damaged module will be extinguished and although the system will still be adequately protected, affected Line modules should be replaced before a further large surge can remove the second stage.

Each MDSP module is fitted with a remote signalling facility where volt free terminals (which can be connected as either normally open or normally closed), open or close when the first protection stage is lost, (one green light on) and these can be used to activate a remote indicator such as a lamp or audible alarm or notify a building management system (BMS).

Modular Distribution Surge Protectors