ARRESTOR PERFORMANCE Voltage70volts Energy rating500 kA 8/20 uS Gas Arrestor2 terminal device Spark over Voltage56 ~ 84 VDC Max Impulse Breakdown<600v / uS … 100v/uS Nominal AC Discharge Current500 Amps DC Holdover Voltage50 volts Nom. alternating discharge Current (50 hZ 9 cycles) (A)4000 Amps Long duration surge 4kA for > 400 mS Nominal Impulse Discharge200KA 10/350uS Insulation Resistance> 10 megohm Series impedance once fired< 0.025 ohms Max Capacitance<20 pF Storage / operating Temp-40 ~ +90 C Weight 0.5kgs ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT
When a voltage is applied across the terminals in excess of 70 volts the gas fires. When this happens it effectively creates a short circuit across the terminals to create a HARD BOND [resistance <0.025 ohms]. This bond will continue until the voltage reduces below 70 volts. ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT
M20 brass studs for cable terminations x 2 Cables enter via cable glands in base of IP66 rated cabinet ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT
GUARD INSULATOR ……. NORMAL GUARD INSULATOR …. NORMAL OPERATED / CONTACTS CLOSED GUARD INSULATOR IN TEST POSITION.. INSULATOR COVERS CONTACTS WHEN TEST SWITCH PUSHED …………. RETURN GUARD TO NORMAL AFTER TEST
Wherever a need exists to clamp 2 separate electrical earthing systems together during fault conditions ONLY. Where-ever protection is necessary on ELV equipment against very high sustained surges and overvoltage conditions. ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT
Operational conditions need these 2 systems be separated. However for safety reasons these separate systems should be bonded together. Possible dangerous touch potentials exist. Damage to equipment that could cause a disaster.
Areas may have high voltages present that can damage ELV equipment. Conductors attached to these circuits may be exposed to surge voltages and currents during fault conditions. In areas of high vulnerability, it may be advisable to ensure the fault current has a predetermined path.