General information:
The voltage regulator JA120M1 is 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 GAZ and others with the alternator GG273V1-3 and their
modifications.
The given item is developed specially for exploitation in various latitudes with a large
range of environment temperature,
including also in tropical conditions.
The regulator is produced
in a single climatic design О2.1 in accordance with GOST 15150
for internal market and for export. On extent of protection
against penetration of foreign bodies and water, the item
meets design IP68 in accordance with GOST 14254. Against moisture
penetration the regulator is protected by special high-heat-conducting
compound with an operating temperature up to 200 °С. Serviceability
and correspondence of item parameters are saved even at plunging
of the regulator to water under. The regulator JA120M1 is
designed on a single-wire power circuit; the item housing
is connected to the case of vehicle. An operating mode of
the regulator is S1 in accordance with GOST 3940.
The regulator is mounted in the brush unit of the alternator
where the setting of regulators JA120M or JA120M1 with the
help of standard screws is stipulated.
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 item housing.
Specifications:
|
Range of operating
temperatures, °С |
|
-45 .. +100
|
|
Nominal regulating
voltage, V |
28,0
|
|
Regulating voltage
with battery at t°=(25 ± 2) °С and load of alternator
3А: mode "Winter", V |
28,8 ± 0,3
|
Regulating voltage
with battery at t°=(25 ± 2) °С and load of alternator
3А: mode "Summer", V |
27,8± 0,2
|
|
Regulating voltage
with battery at t°=(25 ± 2) °С in range of alternator
load from 3A to
Imax*
:
mode "Winter", V |
28,8 ± 0,4
|
Regulating voltage
with battery at t°=(25 ± 2) °С in range of alternator
load from 3A to
Imax*
:
mode "Summer", V |
27,8 ± 0,4
|
|
Maximum current
of output circuit, А |
5,0
|
|
Thermal compensation
of regulating voltage, mV/°С |
-6,0 ± 3,0
|
|
Residual voltage
on output "Ш", typical, V |
0,75
|
|
Maximum allowable
long-term influence of increased supply voltage,
V |
36,0
|
|
Maximum allowable
influence of increased supply voltage up to 5 min.,
V |
50,0
|
|
Maximum allowable
pulse overvoltages in accordance with GOST 28751,
V |
120,0
|
|
Connection diagram:
Dimensional drawing:
|