1 SPECIFICATIONS
1.1 Primary Protection (Transversal and Longitudinal)
Nominal dc spark over voltage 230V
Impulse spark over voltage (at 1kV/s) 650V
Nominal impulse discharge current (8/20us) 10kA
Nominal impulse discharge current (50Hz/1s) 20A
Insulation resistance (at 100V dc) 10
10
E
Capacitance 1.5pF
1.2 Secondary Protection (Transversal nad Longitudinal)
Break over voltage 240V min 300V max
Blocking voltage 190V
Peak pulse current 8x20μs; 300A
10x160μs: 200A
10x1000μs: 100A
Peak one cycle surge current (50Hz) 25A
Holding current 150mA min 750mA max
Capacitance 30±5pF
Off state current 5μA
2 EARTHING
Earthing is of the utmost importance if the protector is to work effectively. An earth wire
is supplied with every protector and should be connected to a low impedance earth.
3 MAINTENANCE
If the protector has been installed correctly, the protector should operate maintenance
free for long periods. When the protector is damaged it will present a short circuit. This
short circuit will not damage the protected eq uipment. The fault could be diagnosed by
simply removing the protector and connecting the equipment directly to the line.
Note This protector has been approved by Telcom SA Limited and is thereby licensed to
connect the protector on a telecommunication line in SA.
MODEM
TELEPHONE
PROTECTOR
LINE
RJ11 PLUG
EARTH WIRE
RJ11 TO PROTEA
PLUG
ADAPTOR
THE SURGE PROTECTOR CONSISTS OF THE FOLLOWING:
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General
Weight and Dimensions
