Electric actuator SPGB-4B is designed for transfer, locking and position control of railway switches on mechanised marshalling yards with non-separable course of shackles.The actuator is designed for operation in temperate conditions in the temperature range from minus 45 to plus 55 C, relative humidity of 100% at a temperature of plus 25 C for classification group MS4 and K4 according to GOST R 55369-2012.The average service life of actuators is three years.Electric actuators SPGB-4B are manufactured according to technical specifications TU 32 TSH 4547-2003.
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