Spark Gap Surge Arresters

Here you are offered with widest choice of up-to-date small size Spark Gap Surge Arresters designed to protect automated telephone stations and other radioelectronic installations against transient dangerous overvoltages. Small size Surge Arresters manufactured by PLASMA, JSC are available in a ceramic-metal envelope and contain no radioactive materials. Electrodes are fabricated from copper or iron-nickel alloys and are activated by barium and cesium salts. These Surge Arrestors are manufactured either with two or three leads enabling simultaneous protection of symmetric lines.

Two-Electrode Spark Gaps of R-150...R-160 series with breakdown voltage from 70 to 1500 V are designed to protect one cable or circuit.

Three-Electrode Spark Gaps of R-91...R-96 series with breakdown voltage from 80 to 600 V are able to protect two circuits simultaneously, thus eliminating cross-phasing and decreasing transverse voltages down to an safe level.

Multi-Sectional Spark Gaps (Multi Gaps) R-34M, R-98, R-99, R-103 are specially designed for protection of high-voltage electrode circuits of cathode-ray tubes against internal breakdowns. Termination of an overvoltage surge by a Spark Gap is followed by immediate restoration of its insulating abilities with no adverse sequences for the protected circuit.
R-34M, R-64M and R-64-1 Spark Gaps with a high extinction potential are designed for circuits operating with a remote power supply.

High-Power Spark Gap Arresters (Lightning Protectors) (NEW)
This series of powerful Surge Arresters was recently developed specially for use as lightning protectors preventing different kinds of radio and electric equipment (stationary and moving radar stations, antenna systems, power lines, etc) from damages caused by direct lightning hits. These Spark Gaps feature breakdown voltage range of 0.17 - 20 kV and pulse current range of 3 - 50 kА at conducted charge of up to 450 Q.

Two-Wire Line (symmetrical) Spark Gap Arresters (NEW)
R-63-1 and R-64-1 are untriggered Protective Spark Gaps of high extinction potential. The are designed to be used for protection of two-wire lines as well as for protection of other radio and electric devices from high overvoltages and currents.