KW3AT-21DSW0-A200 High Temperature T125 Micro Switch Omron Equivalent

Series:KW3A series

Description:

Type:KW3AT-21DSW0-A200    
Construction category:D type
Operation method:Snap Action
Configuration:Single-Pole Single-Through (SPST)
Terminal form:#250 Quick-connect Terminal
Mounting:via side mounting holes
Protection:IP40

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  • Applications
  • Technical parameters
  • Remarks

Widely used in home appliance, electronic equipment, automatic machine,
communication equipment, car electron, apparatus and instrument, electric motion tool etc.

Rice cooker
Slow cooker
Electric Heating Faucet
Shredder
Computer mouse

Power generator
Test equipment
Elevator
Power tools
Air conditioner
Water heater control panel

Bathroom products
Vacuum cleaner
Kitchen products
Gas valve


3.DETAIL SPECIFICATIONS
Type:KW3AT-21DSW0-A200    
Construction category:D type
Operation method:Snap Action
Configuration:Single-Pole Single-Through (SPST)
Terminal form:#250 Quick-connect Terminal
Mounting:via side mounting holes
Protection:IP40
3.1 OPERATING CHARACTERISTICS

Characteristics

Units

Standards

Note

Actuating Force

N

2.0 Max

Original 2.0 Max.

Movement differential travel

mm

0.5 Max

Original 0.5 Max.

Operating Position

mm

14.9 ± 0.4

Original 14.9 ± 0.4

Note:
Actuating Force
The force required to move the actuator from the free to the operation position
Release Force
The force allowed the mechanism to reset actuator after operation
Free Position
The position of the actuator when no external force is applied
Operating Position
The position of the actuator when contact change-over take place
Movement Differential
The distance between operation and release position           

3.2 General
3.2.1 Application This specification is applied to KW3A Micro Switch used for electronic equipment.
3.2.2 Operating temperature range -40℃ to +125℃
3.2.3 Test conditions      
Unless otherwise specified. The atmospheric conditions for making measurements and tests are as follows.
Ambient temperature:                       15~35℃
Relative humidity:                              45~85%
Air pressure:                                      86~106kPa (860~1060 mbar)
Should any doubt arise in judgment. tests shall be conducted at the following conditions.
Ambient temperature:                       20±2℃
Relative humidity:                              60~70%
Air pressure:                                      86~106kPa (860~1060 mbar)
3.3 Appearance construction and dimensions
3.3.1 Appearance Switch shall have good finishing, and no rust crack or plating failures.
3.3.2 Construction and dimensions Refer to individual product drawing.
3.4. Electrical specifications

NO.

Items

Test conditions

Criteria

3.4.1

Contact resistance

Shall be measured at 

1A,5V DC by voltage drop 

method after some 

operations without load.

Applied position: 

Between terminal and terminal  

50mΩ MAX

3.4.2

Insulation resistance

Test voltage:500VDC,

 measured after 1 min ±5s

Applied position: 
1)Between terminal and terminal 

2)Between terminal and ground

100MΩ MIN

3.4.3

Voltage proof

Following test voltages 

shall be applied for 1 min.

(Cut-off  current:0.5mA)

1)Between terminal and 

terminal :1000VAC (50~60Hz)

2)Between terminal and 

ground: 3750V AC(50~60Hz)

No dielectric breakdown

shall occur

3.5. Durability

NO.

Item

Test conditions

Criteria

3.5.1

Cold

After testing at -40±2℃ for 96 h,

 the switch shall be allowed to stand under 

normal room temperature and humidity 

condition for 1h, and then 

measurement shall be made within 1 h. 

water drops shall be removed.

Contact resistance(item 4.1): 

100mΩ MAX

Insulation resistance (item 4.2):

50MΩ MIN

Voltage proof: (item 4.3)

No dielectric breakdown shall occur.

Operating characteristic (item 5.1):

Operating characteristic variety 

Within ±10% of specified value .

No abnormalities shall be 

recognized 

in appearance and construction.

3.5.2

Dry heat

After testing at 135±2℃ for 96 h, the 

switch shall be allowed to stand 

under normal room temperature 

and humidity condition for 1h, and 

then measurement shall be made 

within 1 h.

3.5.3

Damp heat

After testing at 40±2℃ and 90-95%RH 

for 96 h, the switch shall be 

allowed to stand under normal room 

temperature and humidity 

condition for 1h, and then 

measurement shall be made within 1 h. 

water drops shall be removed.

3.5.4

Change of

temperature

After 5 cycles of following conditions 

the switch shall be allowed to 

stand under normal room 

temperature and humidity condition for 

1h, and then measurement shall 

be made within 1 h. water drops 

shall be removed.

3.5.5

Salt mist

Switch shall be checked after following lest.

1) Temperature: 35±2℃

2) Salt solution: 5±1% (solids by mass)

3) Duration: 24±1h

After test, salt deposit shall 

be removed in running water 

No remarkable corrosion shall

 be recognized in metal part

3.6. WELDING PERFORMANCE

 

3.6.1

 

Solder ability

Switch test under such conditions and inspect after. 

1Variable temperature range :235±5℃

2Dip time:3±0.5s

 

The area of dip tin 

should 

capture the 95% 

impregnated area

 

3.6.2

 

Resistance to

 soldering heat

 

The switch will be inspect under such conditions below

Temperature and impregnated time

Trial measure

temperature(

Time(s

Slot welding method

260±5

5±1

Soldering method

350±5

3±0.5

 

 

All of the appearance, 

motor 

functions, electrical 

properties 

are no abnormal.  

3.7.  Durability

NO.

Items

Test conditions

Criteria

 

3.7.1

 

Endurance

(According to

UL61058)

 

21GPA 125/250VAC; 12A 30VDC

 

Voltage proof(Cut-off current:0.5mA) 

Test voltages shall be applied for 1 min

Switch shall be operated 10,000 

cycles at 15-20 cycles/min.

 

 

Insulation 

resistance

(item 4.2): 

50MΩ MIN

Voltage proof:

Terminal and 

ground:1000VAC

No dielectric 

breakdown 

shall occur.

Operating 

characteristic 

(item 5.1):

Within ±20% 

of specified value.

6000cycles,

Temperature 

rise:30℃ MAX

10000cycles,

Temperature 

rise:55℃ MAX

No abnormalities 

shall be 

recognized in 

appearance and 

construction

 

3.7.2

 

Endurance

(According to EN61058-1

/IEC61058-1)

 

21(4)A 125/250VAC

12A 30VDC

Switch shall be operated 

10,000 cycles at 15-20 cycles/min.

Voltage proof(Cut-off current:0.5mA)

Test voltages shall be applied for 1 min

 

Insulation 

resistance

(item 4.2): 

50MΩ MIN

Voltage proof:

Terminal and 

terminal:750VAC

Terminal and 

ground:1500VAC

No dielectric 

breakdown 

shall occur.

Operating 

characteristic 

(item 5.1):

Operating 

characteristic 

variety 

Within ±20% 

of specified value .

Temperature 

rise:55℃ MAX

No abnormalities 

shall be 

recognized in 

appearance 

and construction

4. DRAWING & DIMENSION

5. CIRCUIT DIAGRAM

6.  PACKING:

6.1

Packing material:

Plastic box / 
Double-layers paper carton

6.2

Packing number:

125 pieces per box 
5 box per inner carton
4 inner cartons per shipping carton
Each shipping carton 2500 pieces

6.3

Weight:

Gross Weight:   21kg

Net Weight:     18kg

6.4

Size:

46.0 x 33.0 x 29.5 CM / 0.045CBM

SAFETY APPROVAL & RATING:

Approved Rating

Mark

Reference No.

21A125VAC T125 21GPA 125/250VAC 21(4)A 125/250VAC 12A 30VDC

UL&CUL

E176213

21(4)A250VAC 1E4 T125

VDE

40022705

21(4)A250VAC 1E4 T125

CQC

CQC04002011514

 

NEMKO

 

21(4)A250VAC 1E4 T125

SEMKO

1021704

 

FIMKO

26298

21(4)A 125/250VAC 12A 30VDC 1E4 40T125 50-60Hz

DEMKO

315484-01

D-01523

21(4)A250VAC 1E4 T125

CE

SH10050182-V2

 

TUV

 

21(4)A 125/250VAC 12A 30VDC 1E4 40T125 50-60Hz

ENEC

ENEC-00323

21(4)A250VAC 1E4 T125

EK

SU02030-6007A

SU02030-6007B

21(4)A 125/250VAC 12A 30VDC 1E4 40T125 50-60Hz

CB

DK-27280-UL

 

PARTS LIST

NO.

Quantity

Item

Material

1

1

Plunger

Bakelite PF2A5-151(j)b

2

1

Lever

H62,silver plated

3

1

Case

Engineering plastic PBT(BLACK) (UL94V-0)

4

1

Moving piece

The brass strip H62, silver plated

5

1

Support

The brass strip H65, silver plated

6

2

Static contact

AgNi10/Cu

7

1

Terminal

The brass strip H65, silver plated

9

1

Move contact

AgNi10/Cu

10

1

Spring sheet

Beryllium bronze QBe2

11

1

Cover

Engineering plastic PBT(BLACK

Note: Returned plastic should not exceed 20%.

return