Throttle of DM-0, 17-1000M type is designed for installation on metro railway sections equipped with signalling and interlocking systems with increased frequency. The choke is designed for passing the nominal value of direct current of 1000A in electric traction through each section of the main winding. The middle winding lead is designed for a current strength of 2000A.
The choke is manufactured in climatic version U, category 1 according to GOST 15150-69. According to the method of protection of a person from electric shock the device belongs to class 0 according to GOST 12. 2.
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