The ABB Furse ESP 240 M1 has been designed primarily to protect connected electronic equipment from transient overvoltages on the mains supply, e.g. computer, communications or control equipment.
This product is for use at boundaries up to LPZ 0 to protect against flashover (typically the main distribution board location, with multiple metallic services entering) through to LPZ 3 to protect sensitive electronic equipment.
The ESP 240 M1 has very low let-through voltage (enhanced protection to IEC/BS EN 62305) between all sets of conductors (phase to neutral, phase to earth, neutral to earth – Full Mode protection).
In full mode design, it is capable of handling partial lightning currents as well as allowing continual operation of protected equipment.
The product is supplied in robust steel housing and is of a compact size for installation in the power distribution board.
The ESP 120 M1 and ESP 240 M1 have Network Rail Approval PA05/02700 and PA05/01832 respectively. NRS PADS reference 086/000556 (ESP 120 M1) and 086/047149 (ESP 240 M1).