Direct current electric motors Domestic electric motors 4PF (Electric machine Kharkov)

Series DC electric motors 4PF one of the largest manufacturers PJSC "Elektromashina" (Kharkiv) have medium dimensions with an axis height in three variations, designed to work with adjustable frequency converters. They have a charged stator, independent excitation. There are two types of compensated winding (marking K) and uncompensated, versions with increased accuracy are available (marking P). Remote forced cooling system with independent fan power. There are many design options.

They can be equipped with built-in tachogenerators, in addition to a long cycle of operation, short-term interruptions are allowed, characteristic of the S2 - S8 modes where the RMS value of the current during operation does not exceed the nominal values.

Technical characteristics of 4PF DC motors

• Rated power: 21.4 - 250 kW;
• Rotation speed: 500 - 3600 rpm;
• Maximum efficiency values: up to 91.5 %;
• Operating voltage range: 440 V;
• Overall height: 200 - 250 mm;
• Mounting design: IN 1001, IN 1011, IN 1031, IN 2001, IN 2011, IN 2031, IN 1002, IN 1012, IN 1032, IN 2012, IN 2032;
• Degree of protection housing: IP23;
• Degree of protection: IC 06;
• Insulation class: F;
• Operating temperature range: + 40 °C.

Rated characteristics of standard sizes of 4PF DC motors