VTN Company logo
VTN Company logo
Made with a respect to You
Made with a respect to You




Multifunctional voltage regulator 9555.3702
General information
Connection diagram
Dimensional drawing


General information:

The multifunctional voltage regulator 9555.3702 and its modifications are purposed for voltage maintenance of the onboard vehicle network in predetermined limits in all system operation modes of electrical equipment at change of the rotation frequency of the alternator rotor, electrical load and environment temperature.

Applicability: automobiles VAZ-1117, -1118, -1119 “Kalina”, VAZ-2170, -2171, -2172, “Priora” with the alternator 3222.3771, 9771.3701, 94xx.3702 * ; VAZ-2110, -2111, -2112, -2113, -2114, -2115 with the alternators 3202M.3771.

Voltage regulators 9555.3702 ensure complete switching-off of the alternator’s field winding from the on-board network, thus increasing the reliability and safety of the vehicle power-supply system.

The voltage regulator 9555.3702 has a function of indication of the on-board network reduced/increased voltage and the alternator's low phase voltage. The indication is realized by glowing of the indicator lamp controlling the battery loading on the instrument cluster. The item ensures the fulfilment of a function of fading in current load. The regulator realizes also a function of protection against short-circuit in the output and indicator circuit.

The voltage control and regulation are performed directly on the alternator’s output terminal - on this principle all power supply diagrams of modern foreign automobiles of high class are built.

The multifnctional regulator 9555.3702 is produced in a single climatic design О2.1 in accordance with GOST 15150 for internal market and for export. On protection degree against penetration of foreign bodies and water, the item meets design IP67 in accordance with GOST 14254. An operating mode of the regulator is S1 in accordance with GOST 3940.

The regulators are mounted directly on the alternator, where the setting of regulators 9555.3702 with the help of standard screws is stipulated. The interference-suppression capacitor is a constitute part of the regulator.

The warranty period of exploitation is 3 years from the date of commissioning or from the date of sale in retail commercial network. The warranty obligations of the manufacturer are valid during 4 years from the date of the item production. The date of production is marked on the case of the item.




Range of operating temperatures, °С
-45 ..+125
  Regulating voltage with battery at t°=(25 ± 2) °С and load of alternator 5А, V
14,5 ± 0,1
  Regulating voltage with battery at t°=(25 ± 2) °С in range of alternator load from 5A to 0,9·Imax*, V
14,5 ± 0,15
  Maximum current of output circuit, A
  Thermal compensation of regulating voltage, mV/°С
-7,0 ± 1,5
  Residual voltage on output "DF": maximal / typical, V
0,06 / 0,05
  Threshold of indication actuation of low phase voltage, V
3,75 .. 7,25
  Threshold of indication actuation of lower voltage, V
10,9 .. 11,6
  Threshold of indication actuation of increased supply voltage, V
16,15 .. 17,15
  Maximum allowable long-term influence of increased supply voltage, V
  Maximum allowable influence of increased supply voltage up to 5 min., V
  Maximum allowable pulse overvoltages in accordance with GOST 28751, V
* - According to the technical conditions on the item  


Connection diagram:

Connection diagram of multifunctional voltage regulator 9555.3702


Dimensional drawing:

Dimensional drawing of the multifunctional voltage 9555.3702
VTN © 2000-
The reference to a www.vtnauto.com is obligatory at full or partial use of materials