Voltage regulators 9333.3702-20, 9333.3702-22

General information

The voltage regulators 9333.3702-20, 9333.3702-22 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.

Application: automobiles KAMAZ with engines KAMAZ-740, YaMZ-236 and others with an alternator 3232.3771; MAZ with engines MMZ D245, D260 and others with an alternator 3232.3771-10, special machinery with engines MMZ with an alternator 3232.3771-20, A125/23/-28V-60A.

The output key of the controller is made using MOSFET technology, as a result of which the power losses generated in the form of heat are sharply reduced, the reliability of the controller is increased.

Due to usage of the additional wire, voltage on the alternator is maintained directly on the alternator output terminal. It prolongs battery life cycle, provides optimal operating modes of all using equipment, increasing thus reliability of all automobile electrical equipment.

An interference suppression capacitor is a part of each of the regulators.

The regulators are produced in a single climatic design O2.1 in accordance with GOST 15150 for internal market and for export. On extent of protection against penetration of foreign bodies and water, the items meet design IP67 in accordance with EN 60529. An operating mode of the regulators is S1 in accordance with DSTU GOST 3940.

The regulators are mounted directly on the alternator, where is stipulated the setting of regulators 9333.3702-20, 9333.3702-22 with the help of standard screws. The application of regulators of the given types instead of the voltage regulators 3232.3702 or JA222B is possible, but with dismantlement of the standard filter capacitor.

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 four years from the date of the item production. The date of production is marked on the case of the item housing.

Technical data:

Range of operating temperatures
from -40°C to +100°C
Regulating voltage with at t°=(25 ± 2)°C and load of alternator 5 A
28,4 ± 0,2 V
28,8 ± 0,2 V
Regulating voltage with at t°=(25 ± 2)°C in range of alternator load from 5 A to 0,9 ·
28,4 ± 0,3 V
28,8 ± 0,3 V
Maximum current of output circuit: standard execution / according to the agreement of the manufacturer
5,0 / 8,0 A
Thermal compensation of regulating voltage Ureg
-9 ± 3,0 mV/°C
Residual voltage on output "Ш" ("DF"): maximal / typical
0,15 / 0,12 V
Maximum allowable long-term influence of increased power supply voltage
36 V
Maximum allowable influence of increased power supply voltage up to 5 min.
50 V
Maximum allowable pulse overvoltages in accordance with GOST 28751
200 V

Connection diagram in the alternator set:

Dimensional drawing:

Dimensional drawing of voltage regulators 9333.3702-20, 9333.3702-22
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