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product brief
LW28LW28 Series Universal switch mainly for the exchange of 50Hz,
rated voltage of 440V and below.Sunshine following DC voltage,
rated current of the electrical circuits to 63A,not connected or
breaking frequently for manual control and conversion circuits for
use.and also the direct control of three-phase asynchronous motor
circuit as a master control and measurement purposes.Products are
extensively used, instead of switching between different formal
conversion, as the official switch control circuits, switching test
equipment.motor control switches, and master control switches, and
other switch welding machine.
Meet standards
Circuit switch use, and directly controlling the main switch with
GB14048.3-1993.
master control switch with GB14048.5-1993 use.
Normal working conditions
1. Ambient air temperature does not exceed +40 °, and the average
temperature does not exceed its 24 C +35C;2. ambient air
temperature does not exceed the limit of -5C; 3. installation
location at an altitude of less than 2000m;4. maximum temperature
of +40C, the air temperature does not exceed 50% relative.at a
lower temperature can allow a higher relative humidity.For example,
at 20C up to 90%. Dewing due to temperature changes occasional
special measures.
Product model and its implications
4.1 Use master control switchSwitchModels Meaning
NoteThe code change angle of 30(3), 45(4) at 60(6) ,14.0(9);Since
the rehabilitation of 6030position (36), 4590position since Minute
(49).
4.2 The main circuit controlling the conversion Switch Models
Meaning
NoteSwitch conversion circuit used commonly used 60change.
4.3 Use master control switchSwitchModels Meaning
NoteThe direct conversion Switch control motors commonly used
60change.
Classification
5.1 By Uses pm main circuit switch with a switch Switch.Motor
control using direct conversion Switch and master control and
measurement conversion Switch.Have an operationLocation By Mode of
5.2.Since REPLICA and positioning Since REPLICA.Contact System by
5.3 hours, a 1-3 Switch Location conversion FestivalSwitch direct
control of the main electrical switch using a 1-3 FestivalSwitch
direct control of the main electrical switch using a 1-6
festival.5.4 hours at 30angles by four 5,60and 90 °.Face Shape
Square Face by 5.5 score.Rectangular face and Round Face (20A has
only).Knob Types down by 5.6 R-, I-, F-, B-, S-, L-and P-type and
K-type, a total of eight.5.7 Operating Position By Mode of
operation and see if the composition shown in Table.
Main technical parameters
The following table shows the conversion of the Main technical
parameters Switch
Models | lth A | Ui V | Ue V | AC-21A | AC-22A | AC-23A | AC-2 | AC-3 | AC-4 | AC-15 | DC-13 | ||||
le A | le A | le A | P kW | le A | P kW | le A | P kW | le A | P kW | le A | le A | ||||
LW28-20 | 20 | 660 | 440 | 20 | 20 | 15 | 7.5 | 15 | 7.5 | 11 | 5.5 | 3.5 | 1.5 | 4 | |
240 | |||||||||||||||
SWITCHS - CHANGEOVER SWITCHS SWITCHS back Product Name: LW28 series Application product brief LW28LW28 Series Universal switch mainly for the exchange ...
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