szl-wl-ec

Improving checking and control technology

Sales and Service

Honeywell(China) switch and sensor department

www.honeywell-sensor.com.cn

SZL-WL-H SeriesGeneral Purpose Limit Switch

Combining Honeywell's technology center with MICRO SWITCH, Honeywell's sensor and control components provide a widest range of series of sensors and switches. We also provide customer with product service of high quality.

Honeywell serves its costomers through a worldwide network of sales offices and distributors.

Specified agents of Honeywell switch and sensor department

Beijing Office

17/F Tower B, Pengrun Building,No. 26 Xiaoyun Road,Chaoyang District, BeijingPhone: (86-10) 8458 3280Fax: (86-10) 8458 3103

Shanghai Office

23F Tower B, Hongqiao Shanghai BuildingNo. 100 Zunyi Road,Changning District, ShanghaiPhone: (86-21) 6237 0237Fax: (86-21) 6237 2493

Shenzhen Office

Unit 1102-1104, West side11F Special Zone Press Tower,No. 6008 Shennan Avenue, Shenzhen Phone: (0755) 2518 1226Fax: (0755) 2518 1220

Chongqing Office

Room 2201 Daduhui Building,No. 68 Zourong Road,Yuzhong District, Chongqing Phone: (86-23) 6372 0050*107Fax: (86-23) 6372 0025

HongKong Office

25F Honeywell Building, International Square,No. 255 Yinghuang Road, Beijiao, HongKongPhone: (852) 2953 6408Fax: (852) 2953 6767

Taiwan Office

No. 168 Liancheng Road, 10F,Zhonghe, Taipei DistrictPhone: (886) 2-2245 1000Fax: (886) 2-2245 3241

Guangzhou Office

Unit AIJK, 15F Haiyun Building,No. 308 Bingjiang Middle Road,Zhuhai District, GuangzhouPhone: (86-20) 8410 1800Fax: (86-20) 8410 1810

Features

Designed to the new IEC standard for world-wide applications

Positive opening of normal closed contact meets IEC 947-5-1-3 standard

UL, CCC, CE approvedIP67 Enclosure ratingVariety of actuators, two kinds of conduit thread

availableNO/NC contacts electrically separated Elliptical hole design for easy mountingWide choice of actuators

OP

DTFP

21OT

(max)

1518.5±0.5

25

20

35

DT

10.5 ±1.5

OP

30°

A

free position(F.P.)

5.3mm

1.6mm

8.9mm 17.3mm

21-22

13-14

21-22

13-14

operating position(O.P.)

differential travel (D.T.)

release position (R.P.)overtravelposition(O.T.)

10.5mm

point from whichpositive opening isassured (*)13.9mm

SZL-WL-H

EN 50041

metal

-25 +120

95%RH

25m

10g/50g

0.05mm 2m/s

IP67

2500V

107

5 105

AC15 A600DC13 Q300

120 ops/min

Standard

Enclosure

Operating Temperature

Operating Humidity

Shock/Vibration

Operating Speed

Operating Frequency

Contact Resistance

Degree of Protection

Electrical Rating

Dielectric Strength

Mechanical Life

Electrical Life

SZL-WL-H SeriesSZL-WL-H Series

Description

How to read and understand the bar chart

Applications

Standard

Machine tools: metal fabrication equipment, presses, transfer lines and special machinery

Material handling equipment: conveyors, elevators, cranes and hoists

Packaging machinery and process equipmentTextile machineryConstruction machinery and equipment, vehicles

and lift trucks

32

Figure A

Figure B

Characteristic parameters

General Purpose Limit SwitchGeneral Purpose Limit Switch

Look at Figures A and B as examples. Actuator type used for test is

the linear Cam travel type as fig. A (b) shown left. The start point is

at the arrow marked "A" (See fig. B). This shows the free position

to be 5.3mm from the vertical center line of the unit. At this stage

there is a circuit between the NO contact terminals 21-22 (indicated

black) but no circuit between NC contact terminals 13-14 (indicated

white). The unit can be actuated until it reaches the operating posi-

tion which is 10.5 mm from the center line. At this point the circuit

arrangement changes no circuit between 21-22 but making a cir-

cuit between 13-14. If, however, the contacts of terminals 21-22

weld together and will not separate, a mechanical safety feature will

take effect if the switch is travelled past the point from which posi-

tive opening is assured, 13.9 mm. Actuator can continue to travel to

the end position (O.T. Overtravel Position) at total travel position

17.3mm. Then it reaches the release position as the lower half of

the bar chart (arrow from right to left). As the switch returns it

reaches the release position at 8.9 mm, there is no circuit between

the contact terminals 21-22. The circuit will change back to the orig-

inal state and the difference(1.6mm) between the operating position

and the release position gives what is known as the differential trav-

el. This is the entire process of switching operation.

SZL-WL-H series general purpose limit switches are specially

designed for world-wide applications and supported by Honeywell

global resources for sales and after sales service.

SZL-WL-H series general purpose limit switches are designed

to the latest IEC standard.

EN50041 limit switches are available in metal enclosures.

Standard SZL-WL-H switch circuit variations include 2 and 3-

circuit versions with forced disconnect mechanism.

SZL-WL-H series includes features to make quick installation

easier and safer. Customers will benefit from Honeywell's vast

experience in serving world industries over many years.

SZL-WL-H switches are interchangeable with almost all other

makes of EN50041 and EN50047 switches.

SZL-WL-H SeriesHoneywell General Purpose Limit Switch

The contact rating Designation relates to the utilization categories

and defines the conventional thermal current lth (A), rated

operational current le at rated operational voltages Ue and the VA

rating. e.g.

A600: "A" denotes the maximum rating(AC), "600" denotes the

maximum rated (AC) voltage.

Q300: "Q" denotes the maximum rating(DC), "300" denotes the

maximum rated (DC) voltage.

IEC standards have been adopted by CENELEC and have been

identified by replacing IEC with EN 60.

e.g. IEC 947-5-1 then becomes EN 60947-5-1. CENELEC has

defined the dimensions and characteristics of two types of limit

switch in the standards EN 50041 and EN 50047.

These standards relate to Low voltage switchgear and controlgear

for industrial use and define the enclosure dimensions, the

operating point for various head actuators, the earth terminal

requirement, the terminal marking and the minimum degree of IP

protection.

IEC 947-1 explains the general rules relating to Low-voltage

switchgear and controlgear. The purpose of this standard is to

harmonize as much as possible the product performance and test

requirements for equipment where the rated voltage does not

exceed 1,000 VAC or 1,500 VDC. IEC 947-5-1 is part 5 of the

general rules which relates to Control circuit devices and switching

elements. Also within this part there is a section which considers

Special Requirements For Control Switches With Positive Opening

Operation. Any control switch which has this positive opening

operation and conforms to these special requirements will be

marked on the outside of the product with this symbol:

The Contact Element Form defines the configuration of the contacts

and the number of contacts within the switch. e.g.

Form Za: both contact elements have the same polarity

Form Zb: the two contact elements are electrically separated

The Utilization Category defines the type of current carried and the

typical application. e.g.

AC15: Control of Electromagnetic Loads, more than 72VA

DC13: Control of electromagnets.

The following example relates to a basic switch which has a snap

action and which has a roller pin plunger actuator.

When reading these bar charts follow these rules:

1. Check what type of actuator was used to test the product, this is

on the drawings which show the head style available. It will be one

of two types:

a. Vertical travel plunger

b. Linear cam travel

2. Start reading from top left of figure B, at the arrow labeled "A".

3. Follow the black arrows and the black strip on the chart. The

black strip indicates that there is a circuit between the terminals

whose numbers are shown on the left and when white there is no

circuit.

All dimensions are in mm.

30.2±0.2

40

5.5

(6.5

)1.

3

5.20+0.2

58.7

±0.

225

R38

φ17 7 stainless steel roller

M5 16

3-M4 10

threaded hole:1/2NPT or M20

34.140.4

28.7±0.2

71.6

26.5

(98.

1)

59 max.

20.70

53

4-M3 32

.

.

.

.

0

12

55

75

13-1

4

21-2

2

23-2

415

-16

30

75

35

20

0

1523

1624

122311

2212

2111

0

40

60

11-1

221

-22

13-1

4

21-2

2

23-2

411

-12

0

30

40

75

OF19Ncm

45

OF15Ncm

45

OF15Ncm

Snap Action1NO/1NC

Slow Action2NC

Slow Action(Break Before Make)

1NO/1NC


1NO/1NC

2214

2113

24

15 OF15Ncm

0

12

55

75

13-1

4

21-2

2

23-2

415

-16

30

75

35

20

0

1523

1624

122311

2212

2111

Slow Action2NC

0

40

60

11-1

221

-22

13-1

4

21-2

2

23-2

411

-12

0

30

40

75

OF19Ncm

45

OF15Ncm

45

OF15Ncm

Snap Action1NO/1NC

2214

2113


1NO/1NC


1NO/1NC

24

15 OF15Ncm

30.2±0.2

40

1.3

(6.5

)

5.5

5.20+0.2

140

(max

.)

8.5

58.7

±0.

225

φ3 160 stainless steel lever

4-M3 32

3-M4 10

threaded hole:M20 or 1/2NPT

40.4

28.7±0.2

34.1

71.6

26.5

(98.

1)

52 max.

20.7

46

socket head screw M5 12

socket head screw M8 12

30.2±0.240

5.5

1.3

(6.5

)

5.20+0.2

90°

58.7

R39

17

2-φ20 6 stainless steel roller

M5 12

3-M4 10


34.140.4

28.7±0.2

66.4 max.

71.6

24.1

(95.

7)

60.5

20.7

4-M3 28L02

L03 L04

L01

Head available

1321

1422

Snap Action1NO/1NC

OF35Ncm

21-2

2

13-1

4

55

21-2

2

90

70

25

0 13-1

4

.

.

.

.

0

12

55

75

13-1

4

21-2

2

23-2

415

-16

30

75

35

20

0

1523

1624

122311

2212

2111

Slow Action2NC

0

40

60

11-1

221

-22

13-1

4

21-2

2

23-2

411

-12

0

30

40

75

OF19Ncm

45

OF15Ncm

45

OF15Ncm

Snap Action1NO/1NC

2214

2113


1NO/1NC


1NO/1NC

24

15 OF15Ncm

A

B

N

Contact Type

Selection Guide Actuator Selection

SZL-WL-A-□H

SZL-WL-B-□H

SZL-WL-C-□H

SZL-WL-D-□H

1321

0mm

6mm

1

2.5 OF12N

4

1422

21-2

2

21-2

2

13-1

413

-14

01

1NO/1NCSnap Action

11

21

31

0mm

1.5

2.5

4mm

OF9.8N

12

22

32

11-1

221

-22

31-3

2

30

3NCSlow Action

13

23

33

0mm

1.5

4mm

OF9.8N

14

24

34

13-1

423

-24

33-3

4

31

3NOSlow Action

11

21

33

12

22

34

0mm

0.5

1.31.5

5mm

11-1

221

-22

33-3

4

34

2NC/1NOSlow Action,

Break Before Make

15

25

33

16

26

34

0mm

2

3

5mm

1.5

15-1

625

-26

33-3

4

35

2NC/1NOSlow Action

Make Before Break11

23

33

12

24

34

0mm0.5

1.31.5

5mm

11-1

223

-24

33-3

4

32

2NC/1NOSlow Action,

Break Before Make15

23

33

16

24

34

0mm

1

1.5

3

5mm

15-1

623

-24

33-3

4

33

1NC/2NOSlow Action,

Make Before Break

1123

0mm

6mm

2

1.5

3.5

OF9.8N

1224

11-1

223

-24

03

1NO/1NCSlow Action,

Break Before Make1523

0mm

1.8

34

6mm

OF9.8N

1624

15-1

623

-24

04

1NO/1NCSlow Action,

Make Before Break1121

0mm

5mm

3

4

OF12N

1222

11-1

221

-22

06

2NCSlow Action

1323

0mm

5mm

1.5OF9.8N

1424

13-1

423

-24

07

2NOSlow Action


30.2±0.2

40

5.5

(6.5

)1.

3

5.20+0.2

58.7

±0.

224

.9

R25-77

3-M4 10

34.140.4

28.7±0.2

64.7 max.

20.7

60

4-M3 32

2-M5 16


5


4

A

Actuator Reset

RSZL-WL-H

Structure tree

A

A

C

1/2 NPT

M20

Conduit

01

03

04

06

Snap Action 1NC/1NO

Slow actionBreak Before Make 1NC/1NO

Slow actionBreak Before Make 1NC/1NO

Slow action 2NC

01

Contact type

A

B

C

None

80 (rotated angle)

Example: SZL - WL - A - A01AH SZL - WL - E - A04H SZL - WL - S - A03CH

45 (rotated angle)

90 (rotated angle)

A

Head

H

General

Stainless steel

Honeywell China type(Unit: mm)

(Unit: mm)

(Unit: mm)

(Unit: mm)

H

M

SZL-WL-T-□H

SZL-WL-K-□H

SZL-WL-M-□H

SZL-WL-L-□H

SZL-WL-E-□H

SZL-WL-O-□H

0mm

1.0

4.0

5.5mm

13-1

4

21-2

2

23-2

415

-16

2.5

5.5mm

2.5

1.5

0mm

1523

1624

122311

2212

2111

Slow Action2NC

0mm

2.5

5mm

11-1

221

-22

13-1

4

21-2

2

23-2

411

-12

0mm

1.0

2.0

3.0

5.5mm

OF15N

3.5

OF9.8N

OF9.8N

3.0

OF9.8N

Snap Action1NO/1NC

2214

2113


1NO/1NC


1NO/1NC

24

Slow Action2NC


1NO/1NC


1NO/1NC

0

12

55

75

13-1

4

21-2

2

23-2

415

-16

30

75

35

20

0

1523

1624

122311

2212

2111

0

40

60

11-1

221

-22

13-1

4

21-2

2

23-2

411

-12

0

30

40

75

OF19Ncm

45

OF15Ncm

45

OF15Ncm

Snap Action1NO/1NC

2214

2113

24

15 OF15Ncm

30.2±0.240

5.5 1.3

6.5

5.20+0.2

58.7

±0.

246

.9

4-M3 11

3-M4 10

40.4 max.

28.7±0.2

71.6

28.5

34.1

20.7

14.1φ17 5 stainless steel roller

threaded hole:M20 or 1/2NPT

5.20+0.2

58.7

±0.

225

R31.5

φ50 10.3 rubber roller

3-M4 10

M5 12

20.734.1

40.4

28.7±0.2

98.1

71.6

26.5

57.5

65.4 max.

4-M3 32


30.2±0.2

40

1.3

(6.5

)

30.2±0.240

1.3

(6.5

)

5.5

5.20+0.2

58.7

25

R32-77

φ50 10.3 large rubber roller

3-M4 10

20.734.140.4

28.7±0.2

71.6

26.5

(98.

1)

6269.7 max.

4-M3 32

2-M5 16


30.2±0.2

40

1.3

(6.5

)

5.5

32.5

L=10

2.5

5.2 0+0.2

1/3L

58.7

±0.

214

1.2

Foperating force test

4-M3 11

3-M4 10

34.140.4

28.7±0.2

71.6

6.5

20.7

14.1


0

6

35

13-1

4

21-2

2

16

13-1

4

21-2

2

OF5N

2214

2113

Snap Action1NO/1NC

0

6

35

13-1

4

21-2

2

16

13-1

4

21-2

2

OF5N

2214

2113

Snap Action1NO/1NC

0

6

35

16 OF5N

2214

2113

Snap Action1NO/1NC

Slow Action2NC

0

12

55

75

13-1

4

21-2

2

23-2

415

-16

30

75

35

20

0

1523

1624

122311

2212

2111

0

40

60

11-1

221

-22

13-1

4

21-2

2

23-2

411

-12

0

30

40

75

OF19Ncm

45

OF15Ncm

45

OF15Ncm

2214

2113

24

15 OF15Ncm

Snap Action1NO/1NC


1NO/1NC


1NO/1NC

30.2±0.2

40

1.3

(6.5

)

5.2 0+0.2

L=80

40

5.5

1/3L

58.7

±0.

211

8.7

F

3-M4 10

4-M3 11

34.140.4

28.7±0.2

71.6

20.7

14.1

operating force test


30.2±0.240

1.3

(6.5

)

5.2 0+0.2

L=80

50

5.5

1/3L

58.7

±0.

211

8

Foperating force test

4-M3 11

3-M4 10

34.140.4

28.7±0.2

1.2

6.5

20.7

14.1


7


6

SZL-WL-F-□H

SZL-WL-S-□H

0

12

55

75

13-1

4

21-2

2

23-2

415

-16

30

75

35

20

0

1523

1624

122311

2212

2111

Slow Action2NC

0

40

60

11-1

221

-22

13-1

4

21-2

2

23-2

411

-12

0

30

40

75

OF19Ncm

45

OF15Ncm

45

OF15Ncm

Snap Action1NO/1NC

2214

2113


1NO/1NC


1NO/1NC

24

15 OF15Ncm

Slow Action2NC

0mm

1.0

4.0

5.5mm

13-1

4

21-2

2

23-2

415

-16

2.5

5.5mm

2.5

1.5

0mm

1523

1624

122311

2212

2111

0mm

2.5

5mm

11-1

221

-22

13-1

4

21-2

2

23-2

411

-12

0mm

1.0

2.0

3.0

5.5mm

OF15N

3.5

OF9.8N

OF9.8N

3.0

OF9.8N

Snap Action1NO/1NC

2214

2113


1NO/1NC


1NO/1NC

24

threaded hole:M20 or 1/2NPT 40.4 max.

28.7±0.2

18.5

71.6

34.1

R5.314.1

20.7

40

30.2±0.25.5

10

5.20

+0.2

1.3

(6.5

)

58.7

±0.

2

4-M3 11

3-M4 10

stainless steel plunger

30.2±0.2 1.3

(6.5

)

5.2 0+0.2

5.5

40

58.7

25

R46-136


3-M4 10


34.140.4

28.7±0.2

58 max.

148.

5

71.6

26.5

20.7

53

4-M3 32

(Unit: mm)

(Unit: mm)

(Unit: mm)

(Unit: mm)

(Unit: mm)

(Unit: mm)

(Unit: mm)

(Unit: mm)

9


8

■Operating Characteristics of 1NO/1NC Snap Action Type

■Operating Characteristics of 1NO/1NC Slow Action, Break Before Make Type

■Operating Characteristics of 2NC Slow Action Type

■Operating Characteristics of 1NO/1NC Slow Action, Make Before Break Type

OPTTp(max)

OF(max)RF(min)PT1＊(max)PT2＊(max)TT(min)

OPTTp(max)

SZL-WL-A-A04AHSZL-WL-A-C04AH

SZL-WL-B-A04AHSZL-WL-B-C04AH

SZL-WL-C-A04AHSZL-WL-C-C04AH

SZL-WL-E-A04AHSZL-WL-E-C04AH

SZL-WL-F-A04AHSZL-WL-F-C04AH

SZL-WL-T-A04AHSZL-WL-T-C04AH

SZL-WL-S-A04AHSZL-WL-S-C04AH

SZL-WL-O-A04AHSZL-WL-O-C04AH


Note: ＊PT1 is NC contact pretravel; PT2 is NO contact pretravel.

15Ncm5Ncm35°20°75°

15Ncm5Ncm35°20°75°

15Ncm5Ncm35°20°75°

15Ncm5Ncm35°20°75°

15Ncm5Ncm35°20°75°

15Ncm5Ncm35°20°75°

9.8N3N2.5mm1.5mm5.5mm

9.8N3N2.5mm1.5mm5.5mm


OPTTp(max)

OPTTp(max)










Note: ＊PT1 is NC contact pretravel; PT2 is NO contact pretravel.

15Ncm5Ncm15°40°75°

15Ncm5Ncm15°40°75°

15Ncm5Ncm15°40°75°

15Ncm5Ncm15°40°75°

15Ncm5Ncm15°40°75°

15Ncm5Ncm15°40°75°

9.8N3N1mm3mm5.5mm

9.8N3N1mm3mm5.5mm









OF(max)RF(min)PT(max)MD(max)TT(min)

OPTTp(max)

OPTTp(max)

OF(max)RF(min)PT(max)MD(max)TT(min)

15Ncm5Ncm40°4°60°

15Ncm5Ncm40°4°60°

15Ncm5Ncm40°4°60°

15Ncm5Ncm40°4°60°

15Ncm5Ncm40°4°60°

15Ncm5Ncm40°4°60°

9.8N3N2.5mm0.4mm5mm

9.8N3N2.5mm0.4mm5mm

OF(max)RF(min)PT(max)OT(min)MD(max)TT(min)

OPTTp(max)

OF(max)RF(min)PT(max)OT(min)MD(max)TT(min)

OPTTp(max)




SZL-WL-D-A01AHSZL-WL-D-C01AH



SZL-WL-L-A01AHSZL-WL-L-C01AH




SZL-WL-M-A01AHSZL-WL-M-C01AH

SZL-WL-K-A01AHSZL-WL-K-C01AH

15N3N2.5mm3mm1.5mm5.5mm

15N3N2.5mm3mm1.5mm5.5mm

5N----16°----10°----

5N----16°----10°----

5N----16°----10°----

5Ncm----55°35°----°90°

19Ncm5Ncm30°45°18°75°

19Ncm5Ncm30°45°18°75°

19Ncm5Ncm30°45°18°75°

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