Eco-friendly Low Voltage Protection Devices Intelligent Motor Soft
The LZR1 series not only have the functions of normal starter which
used in domestic at present, but also own their special functions:
1. High power inner bypass design is the main advantage of LZR1
series, this design avoid much problems which occur in the design
bypass design . Inner byass design makes the softer functions is
more useful and the installation is more simply. Inner bypass makes
circuitry is more simply, it is very easy to install and won＇t
cause trouble. Inner bypass makes the secondary circuitry also can
be mastered easily.
LZR1 series soft starter is the first time in China using inner
bypass design, its power range is 5.5~400kW. We applied the patent
for LZR1 soft starters.
The patent numbers are ZL 200630038542.4 and ZL 200620044145.2 .
2. LZR1 soft starter adopts the imported Germany square chip and
advanced chip support pole, uses DCB ware and copper integrating
through the special processing method and welding skill, keep the
welding layer without space, and keep the good heat conduct. The
head loop load
is 10 times higher than the GB standard.
3. LZR1 series soft starter integrates the high power intelligent
controlling thyristor module and full digital shift touch-off
integration circuit into
one body. The product owns small body and strong anti-interfere
functions, as well as the advantages of anti-earthquake
anti-humidity, so it is the
priority products used in the flammable and explosive environment.
4. Inner bypass installation is a big system project which is
developed at the base of adopting many advanced science and
as well as modern science theory. The starter first control part
adopting the advanced chip microprocessor as control center. With
the help of
adopting advanced electrical control program theory, full digital
phase shift technique, high power non-arc and long lifetime
so the starter integrating all the advantages. As well known the
difference of contactor and relay is that the contactor has arc
eliminator, while relay
without arc eliminator. The LZR1 soft starter equipped an arc
eliminator inside the inner installation, so it can be connected
with the high power load
and high voltage load.
5. User friendly, easy setting and operation: LZR1 adopting the LCD
display, it can display each start method, start time, primary
soft stop time. It is very easy to control for the user. The user
can program the motor starter mode with the help of th e
instruction. The LCD display
screen display all the data, such as work mode, current position
and soon, in this case, it is very easy for the user to set and
6. LZR1 series have the strong protection function, it adopts JDG1
type motor compositive protector and related interface, so it
strong protection when the motor under the situation of phase
failure, over load, over voltage ,jam swivel and short voltage. The
starer also equipped
the heat protector inside the body and protects itself.
7. LZR1 series can be controlled from the LCD screen, it also can
be controlled through the computer in the control room. LZR1 series
own the excellent controlling ability; it can adjust the urgent
stop, soft stop and soft start.
8. LZR1 series products’ inner bypass installation is non-power
running mode, it is different from the out by pass installation
starter, so it has the
advantages of saving energy, no noise, no electromagnetism
pollution and protect environments.
Technical Index of Soft Starter
LZR1 electronic motor soft starter has passed the certificate of
3C, complied with national standard GB14048.6-1988.
3 Phase power
Source voltage(U) V
380V±15% 660V±15% 1140V±15%
Rated Current A
10A ~ 800A total 18 specifications
Rated Power KW
Rated Voltage V
The rated current IQ of motor, It can adjust under 0.5~3.5 times of
rated startup current, limit the startup current below 5 times of
peak start current .
User should set by himself according to the connected load and
instruction of manual
1, Naturally shutdown 2, Soft shutdown 3, 5S~60S set by user
Nos of Startup
12 times/hour, complied with GB14048.6AC-53b
Display and Keyboard
Under normal working it can display the status of motor, shows
fault , the key-board can be set and programmed.
Output relay (2pcs)
NO, NC contact output of fault (Non-source contact)
Fan working status
1Long term work 2Run/Stop and outer switch control
3It is also can control by internal temperature control switch
1.Phase failure protection: LZR1 series soft starter has provided
the phase failure protection, the tripping time
for phase failure complies with inverse time delay characteristics,
namely bigger over-current has shorter tripping
2.Over-current protection: LZR1 series soft starter has provided
over-current protection, with inverse time
delay tripping characteristics.
3.Fast cut protection: LZR1 series soft starter has provided the
fast cut protection as well, when urgent
stop required, it can realize by use of fast cut protection.
4.Thermal protection:when the starter is overheat and the inner
temperature more than 75℃,
starter will auto-matically cut off.
5.Thermal protection: when the starter is overheat and the inner
temperature more than 75, starter will auto-
matically cut off.