SHORT-CIRCUIT INDICATOR TYPE K/KM/KH single conductor mounted General description The short-circuit indicator can be used in radial networks with one input and open-ring networks. The short-circuit indicators are single units and mounted on each conductor. The short-circuit indicator type K / KM / KH consists of one sensor with integrated indication. The indication is done by a flag indicator. The indicator is divisible and can be retrofitted. For the operation of the display device no power supply is required. Type K: Automatic reset by recovering operating voltage. The indicator must be installed on unscreened cables. Type KH: Manual reset with a button. The indicator can be mounted on screened and unscreened cables. Type KM: Automatic reset by recovering operating voltage and manual reset. The indicator must be installed on unscreened cables. ELEKTRO-MECHANIK EM GMBH Document Rev. 2 Ringstr. 4 - D-42553 Velbert / Germany Page 1

General Data Subject Value short-circuit current One trip current available between 150 and1500 A (phase to phase) display unit suitable for surface installation display of short-circuit flag indication reset of the indicator a) manual by push-button (Type KM and KH only) b) self-acting after recovering medium voltage (Type K and KM only) Please note: For automatic reset by recovering medium voltage, the indicator must be installed on an unscreened conductor! (suitable for type K and KM only) Reset time depends on voltage and the enviroment. dimensions: display unit (WxHxD) 40mm x 50mm x 38mm...

ELEKTRO-MECHANIK EM GMBH Document Rev. 2 Ringstr. 4 - D-42553 Velbert / Germany Page 3