Test Switch - e-trd.rue-trd.ru/userfiles/File/files/205_Testovyj_perekljuchatel_P421_(eng).pdfThe test switch P 421 is used for the easy testing of network master and differential

Standard Devices

Test Switch

P 421

The contents may be subject to modification for the purpose of technical improvement.The general regulations applicable to installationand commissioning must be observed. No warranty can be accepted.

The products described in this brochure are intended for industrial use and meet the requirements laid down by the EUdirective 73 / 23 EU (issued by the Council for Coordination of the Regulations of EU Member Countries regarding the electrical equipment for use within certain voltage limits, revised by directive 93 / 68 EU issued by the council).

Test Switch P421 3

Contents Page

Application 4

Design and Principle of Operation 4

Connection for Control Panel Surface Mounting 4

Connection for Control Panel Flush Mounting 4

Order References 4

Diagrams 5

Dimension Drawings 11

Table of Contents

4 Test switch P421

Application

The test switch P 421 is used for the easy testing of networkmaster and differential protection relays during online operation.The required periodic inspections of the relays can thus be carriedin a fast and safe manner.

Design and Principle of Operation

The test switch P 421 comes in an instrument case with the frontdimensions 144mmx144mm (DIN 43700). The knob-operatedswitch on the frontplate is used to set the built-in blade contacts tothe test or operating position. Closed contacts are indicated by theletter ”B” (Operation) on a red background, open contacts by theletter ”P” (Test) on a green background. The acces to the built-insockets is mechanically enabled when the switch is in test position.

When the contacts are in the operating position, the electric circuitsof the current and voltage transformers to JKL the protection relayare connected and the tripping line is enabled (see diagrams).Upon changeover from ”Operation” to ”Test”, the currenttransformers are short-circuited before the contacts open. Theprotection relay can now be tested using the protective-side-connected JKL sockets. For the connection of the measuring leadswe recommend our test socket which is available as an accessorypart. The test switch can be supplied with a permanent or aremovable knob.

The test switch P 421 is available both for surface-mounting andflush-mounting in control panels (see pages 11 and 12 fordimension drawings).

Connection for Control Panel Surface Mounting

The connection is established by means of 2x15=30side-mounted screw terminals (maximum) with M4 thread. Dependingon the circuit arrangement, the terminals are numbered from ”1” to”11” (lower row) and ”12” to ”22” (upper row), or ”1” to ”15” (lowerrow) and ”16” to ”30” (upper row). The maximum cross-sectionalarea of the connecting cables is 6mm2. Upon request, the surface mounting case is delivered with 2 largeterminal covers.

Connection for Control Panel Flush Mounting

The connection is established by means of 2x15=30 rear-mounted screw terminals (maximum) with M4 thread. Dependingon the circuit arrangement, the terminals are numbered from ”1” to”11” (lower row) and ”12” to ”22” (upper row), or ”1” to ”15” (lowerrow) and ”16” to ”30” (upper row). The maximum cross-sectionalarea of the connecting cables is 6mm2. Four ”C” type fixing elements are delivered upon request.

Order References

Ident No.: 51-9_-001 xx xx

Mounting Surface-mounting 1type: Flush-mounting 2

Diagram number: 42-

Options and accessories acc. to price list

Front view of flush mounting case Rear view of flush-mounting case

Test switch P421 5

Diagram 42-001 for network limiting Diagram 42-003 for network limiting

Diagrams

Betrieb

R

+–U V 0W

S T K +' +''

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 615 8 10 79

2 3 4 17 19 21 20 18

R

–U V 0W

S T K +'

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 615 8 10 79

2 3 4 17 19 21 20 18Betrieb

Diagram 42-007 for differential protection Diagram 42-017 for line protection

R

–R ' S ' +T '

S T K +'

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 15 24

2 3 4 10

16

5

17

6

18

7Betrieb

R

+'U V W

S T 0 +

Mp

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 6 8 10 9

2 3 4 17 19 21 20

7

18

15 16

5

11

Betrieb


LR–u v 0w

K K' UhrLS LT

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 615 8 10 9

2 3 4 17 19 21 20

11

5Betrieb

R

+U V W

S T K +

0

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 6 168 10 9

2 3 4 17 19 21 20 5

7

18

1115

Betrieb

Diagram 42-058 for network limiting Diagram 42-068 network limiting

R

+''0' – +'

S T K U'

+' +''

V' W'

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 6 168 10 9

2 3 4 17 19 21 20 5

7

18

15

Betrieb

R

–U V W

S T K +'

0 +

+''

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 6 168 10 9

2 3 4 17 19 21 20 5

7

18

15 11

Betrieb

6 Test switch P421

Diagrams


R

+u v w

S T 0mp +'

S (S )1 2 3 4 5 6 7 8 9 10 11

Betrieb

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

16 17 18 20 3021 22 24

2 3 10 5 6 7 9 29

28

13

3725

35

R

+U V 0W

S T K +'

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 615 8 10 169

2 3 4 17 19 21 20 5

7

18Betrieb

Diagram 42-095 for network limiting Diagram 42-109S* for network limiting

R

+U V 0W

K +' +''S T

–

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 615 8 10 9

2 3 4 17 19 21 20

11

5

7

18Betrieb

R

+u v w

S T +' +''MpMp

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

16 17 18 21

2 3 10 6

25 9

24

30

29

28

13

36

35

20

5

22

7

34

Betrieb


R

+u v Mpw

S T K A1A2A3

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Betrieb

Prüfen1

A1 B1 C1 L

2 3 11 7 9

M

12

13

N

G JD1

4 5

E

8

H

10

K

6

F 01

14

02

U

51 2 3

W + +' –

4 6

–'

Betrieb

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

10 12 14 16

3 5 7 9 11 13 15

18

17

228642 20

19 21

1 2 3 4 5 6 7 8 9 10 11

Diagram 42-116S* for network limiting Diagram 42-117S* for network limiting

+'LS-A

1 3 6 9 11 13 15 17 19 22 25 27 29

+'U<

+'U>

Betrieb

Prüfen

2 4 5 7 8 10 14 16 18 20 21 23 24 26

1 2 3 29 11 12

12

174 18 4B4A 30 34 26 PB 27 PB1 20 21 25 PB2 36 37 22 24 2816

5 6 10 35 7 9 13

28 30

+'ΣA-AL

+'ΣA-EL

+'LS-E

+09

–09

–10

110VDC

R

+u v w

S T +' +''MpMp

16 17 18 19 20 21 22 23 24 25 26 27

1 2 3 4 5 6 7 8 9 10 11 12

28 29 30

Prüfen1

16 17 19 28

2 3 10 13

25 9

24

30

29

27

12

36

35

20

5

22

7

26

11Betrieb

13 14 15

34

*not available for control panel flush mounting

Test switch P421 7


Diagrams

R

+U V W

S T

Y

+'

0

1 2 3 4 5 6 7 8 9 10 11

g g12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 6 8 10 9

2 3 4 17 19 21 20 16

7

18

1115 5

Betrieb

R

–U V W

S T K +'

0 +

+''

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Prüfen1

12 13 14 6 8 10 9

2 3 4 17 19 21 20

7

18

15

1 2 3 4 5 6 7 8 9 10 11 12

5

1116

Betrieb

13 14 15


R

–'U V 0W

S T K +'

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

16 17 18 2319 24 25 2831

2 3 4 8 9 10 15 14

26

13Betrieb

L1

A1U V NW

L2 L3 N A2100V

+

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

100V

Betrieb

Prüfen1

16 17 18

2 3

25

10

28

13

20

5

26

11

21

6

22

7

24

9

27

12 35

37

Diagram 42-132 for network limiting Diagram 42-134* for network limiting

R

–'U V W

S T K +'

0GANR

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Betrieb

Prüfen1

16 17 18 26 27 21 24

2 3 10 11 12 6 9

22

7

25

1 2 3 4 5 6 7 8 9 10 11 12

29

343020

5

28

13

13 14 15

R

–'u v 0w

S T K +'

–'

+'

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

G.Aus AWE

Betrieb

Prüfen1

A1 B1 C1 E

2 3 5 6 7

J

9

N

13

F GD1

4 8

H

10

K

11

L

12

M 01

14

02

Diagram 42-137* for differential protection Diagram 42-138 for differential protection

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

0

W

V

U

T'

T

S'

SR

R' +''

+'

–

+

Betrieb

Prüfen1

16 17 18

2 3

24

9

2819

4 10

25

11

26

12

2720

5

21

6

22

7

23

8 14

29

13

R

+''R' S' N'T'

S T N +' +

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

–

Betrieb

Prüfen1

16 17 18

2 3

19

4

26

11

23

8

24

9

25

10 12

28

13 14

2927


8 Test switch P421

Diagrams

Diagram 42-139* for differential protection Diagram 42-143 for network limiting

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

V

U

N'

N

T'

T

S'

SR

R' 0

W

–'

+'

Betrieb

Prüfen1

16 17 18

2 3

24

9

28

13

19

4 10

25

11

26

12

2720

5

21

6

22

7

23

8 14

29

15

30

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

–

+'

+

+''L1

U V NW

L2 L3 N2 n

e

Betrieb

Prüfen1

16 17 18

2 3

20

5

25

10 7

22

13

2826

11

24

9

21

6

27

12

Diagram 42-147 for network limiting Diagram 42-150* for network limiting

R

+0 0 0

S T +' +''

–

Betrieb

Prüfen1

16 17 18 25

2 3 4 12 10

619 24

9 11

26

12 13 14 15 16 17 18 19 20 21 22

1 2 3 4 5 6 7 8 9 10 11

27

L1

EU V NW

L2 L3 N2

+

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

N1 +'

Betrieb

Prüfen1

16 17 18

2 3 5 6 14

24

9

19

4 11

26

12

272920

13

2821

8

23 25

10

30

Diagram 42-153* for network limiting Diagram 42-154 for network limiting

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

n

k

–

+'R

U V 0W

S T K i

e

Betrieb

Prüfen1

16 17 18

2 3

19

4 12

2725

10

24

9

23

8

22

7

20 21

5 6 11

26

13

28

J/L1+U/L1 U/L2 U/xU/L3

J/L2 J/L3 J/k+'

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Betrieb

Prüfen1

12 13 14

2 3

15

4 5

16

6

17

7

18

8

19

10

21 24

23

28

26

31

29


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

+

+'1(P)–

IL1 IL2 IL3 INUL1 UL2 UL3 UN

+''1(S) +'2(P)+''2(S)

Betrieb

Prüfen1

12 13 14

2 3

15

4 23

2419

8

18

7

17

6

16

5 29

3021

10 26

28

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

L+L–

IL1 IL2 IL3 INUL1 UL2 UL3 UN

Aus PGAus LS

Betrieb

Prüfen1

12 13 14

2 3

15

4 5

16

6

17

7

18

8

19

10

21

23

24 25

Meldungen


Test switch P421 9


Diagrams

R

2+'U V OW

S T K 1+'2+''1+''

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

+

–Betrieb

Prüfen1

12 13 14 16

2 3 5 6 7

27

26

17 18

23

15

4 8

19

10

21 25

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

1

7 8 109

2 3 4 5

11 12

6

13

Betrieb

Prüfen29

3023

24

16

5 32

3317

6

18

7

19

8

21

10

14

3

15

26

27C

4

D13

2

B12

1

A


R

-U V 0W

S T K +'++''

Betrieb

Prüfen1

12 13 14 16

2 3 5 6 7

17 18

23

15

4 8

19

10

21 24

1 2 3 4 5 6 7 8 9 10 11

2212 13 14 15 16 17 18 19 20 21 23

R

–U V W

S T K +'

0 +

+''

12 13 14 15 16 17 18 19 20 21 22 27 28 29 30

–

+'

Prüfen1

12 13 14 6 8 10 9

2 3 4 17 19 21 20

7

18

15

1 2 3 4 5 6 7 8 9 10 11 23

Betrieb

24 25 26

16

5

Klemmen-Oberseite

Klemmen-Unterseite


R

–U V W

S T K +'

0 +

+''

12 13 14 15 16 17 18 19 20 21 22 24

Prüfen1

12 13 14 6 8 10 9

2 3 4 17 19 21 20

7

18

15

1 2 3 4 5 6 7 8 9 10 11 23

Betrieb

16

5

Klemmen-Oberseite

Klemmen-Unterseite

1

+U1 U2 U3

2 3 0 +'

U0

12 13 14 15 16 17 18 19 20 21 22

Prüfen1

12 13 14 6 8 10 9

2 3 4 17 19 21 20

15

1 2 3 4 5 6 7 8 9 10 11

Betrieb

16

5

11

Diagram 42-169 for differential protection Diagram 42-170 for network limiting

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

+''

S2

+'

R2

T3

T1S3S1R1

R3 –

T2

Betrieb

PrüfenP1

1 3 5

P2 P3

7

P4 P12

21

P14

239

P5

11

P6

13

P7

15

P8

18

P10

22

P13

R

L+U V MpW

S T M +

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

L–

+'

Betrieb

Prüfen

18

P10

21

P12

22 23 24

P13 P14 P15

9

P5 P6

11 13

P7

15

P8

17

P9P1

1 3 5

P2 P3

7

P4

2 4 6 8 12

Prüfen

10 Test switch P421

Diagrams


R

+'U V W

S T K +

0

t

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

PrüfenP1

1 3 5 9 11 13 15

P2 P3 P4 P5 P6 P7 P8

21

P12

7

1 2 3 4 5 6 7 8 9 10 11 12

Betrieb

13 14 15

23

P14

22

P13

01

13 14 15

02 03 04

16

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

PrüfenP1

1 3 5

P2 P3 P4

25

P16

7

1 2 3 4 5 6 7 8 9 10 11 12

Betrieb

13 14 15

22

P13

21

P12P5

9 11 13

P6 P7 P8

15 19

P10

24

P15

23

P14


R

–U V W

S T K +'

0 +

+''

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Prüfen1

12 13 14 16 17 18 19

2 3 4 5 6 7 8

21

10

15

1 2 3 4 5 6 7 8 9 10 11 12

Betrieb

13 14 15

30

29

27

26

2824

23

25

R

+U V W

S T K +''

0 –

+'

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Prüfen1

12 13 14 17 18 19 20

2 3 4 6 7 8 9

21

10

15

1 2 3 4 5 6 7 8 9 10 11 12

Betrieb

13 14 15

11

5

Diagram 42-177 for network limiting Diagram 42-178 for differential protection

R

–U V W

S T K +'

0 +

+''

12 13 14 15 16 17 18 19 20 21 22 24 4A2 4A3 4A4

1 2 3 4 5 6 7 8 9 10 11 23 F9 F10 F8

Prüfen1

12 13 14 16 17 18 19

2 3 4 5 6 7 8

21

10

15

Betrieb

24

23

30

29 31SchutzPrüfung

Klemmen-Oberseite

Klemmen-Unterseite 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

+

+''K

T'

T

S'

SR

R' –

+'

Betrieb

Prüfen1

12 13 14

2 3

15

4

16

5

17

6

18

7

24

10 9

21

Diagram 42-179 for differential protection

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

–

+'

+

0

3'

3

2'

21

1'

Betrieb

Prüfen1

12 13 14

2 3

15

4

16

5

17

6

18

7 9 10

20 22

Test switch P421 11

Dimension Drawing: Surface-mounting Case

302928272625242322212019181716

151413121110987654321

B

Terminal markings for alldiagrams > 22 connections!Terminal markings for alldiagrams ≤ 22 connections!

Note:The test socket markings correspondto diagram 42-001.For all other markings, pleaserefer to the diagrams.

Colours:Bezel - RAL 7037 (dust grey)Housing - RAL 7032 (pebble grey)

Connections: Max. cross section: 6 mm2

Accessories:4 x cyl.-head stud M 5 x 20 ID No.: 08-00-0634 x six-edged nut M 5 ID No.: 08-08-0104 x locking washer 5.0 ID No.: 08-06-043

* The depth of 200 mm applies to the following diagrams:42-109S / 42-113 / 42-116S / 42-117S / 42-134 /42-137 / 42-139 / 42-150 / 42-153

126

145

144 x 144

154

170

201

13.5

619

156

(200

*)

6

11

U V W O - +

R S T K +' +''

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

12 Test switch P421

Dimension Drawings: Flush-mounting Case and Test Plug

Terminal markings for alldiagrams ≤ 22 connections!

Terminal markings for alldiagrams > 22 connections!

Note:The test socket markingscorrespond to diagram 42-001.For all other markings, please refer toto the diagrams.

Rear view

Colours:Bezel - RAL 7037 (dust grey)Housing - RAL 7032 (pebble grey)

Connections:Max. cross-section: 6mm 2

Accessories:2 x mounting elementID No.: 08-40-080

180

6

208

25

Pane

l cut

out:

138

+0.

5 x 1

38 +

0.5

Beze

l: 14

4 x

144

B

R S T K +' +''

U V W O - +

123456789

1011

161718192021222324252627282930

123456789

101112131415

15

121314

161718

22212019

Test plug

Coding pins

Number cable 12x1.5PVC, grey 2m longTest voltage 2kVOperating voltage 500V maxLoad capability at 25°C 20A

Either plug- or fork-type (please state when placingyour order)

1

2

3

4

5

6

7

8

9

10

11

12

ø 4

ø 5

Test switch P421 13

Notes

14 Test Switch P421

Notes

Test Switch P421 15

Power Station Control and Process ControlAutomation system ME 400Process control system ME 4012Data sheets ME 4012Fail-safe control system ME 4002SIntermittent devices, electr. power controllersElectronic control system ME 4002Data sheets: Electronic control system ME 4002Data sheets: Electronic control system ME 4022Electronic measuring and monitoring system ME 7002

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process control system ME 4012- Reference list of completed process control installations

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Alarm and Event Recording SystemsEvent data acquisition system ME 300System description ME-NETRelay and alarm module system ME 2015Criterion computer ME 2015KAlarm and event recording system ME 2025Electronic alarm system ME 3008

Mosaic Systems / Control Room TechnologyMosaic system, M seriesMosaic system, K seriesMosaic system, T seriesMosaic system, MK seriesControl room technology Mosaic accessory partsDisplay elements

Electronic Stamdard DevicesDisplay units ANZDC voltage monitoring unit GEÜ 02 / GESÜ 02Alarm and event recording system ME 2025/96Compact alarm system ME 3009Illuminated annunciator system ME 3012Distributed alarm system ME 3014Alarm system ME 3010Intelligent alarm system ME 30Illuminated indicator board, Type LCables with connectors, terminal blocksAnnunciator relaysIlluminated annunciator relaysMosaic indicator boards Crosspoint relaysAuxiliary relaysTime-delay relaysIlluminated pushbuttons / switchesAnnunciator modulesFlasher units / flasher amplifiersElectronic flasher unitTest switchSwitches and pushbuttons for auxiliary circuitsStandard rack systemIlluminated pushbuttons / switches, eyeball indicatorsReversing thyristor controllersIntermittent devicesStart-up and braking control devicesEmergency stop switch unitsTwo-hand safety relaysProtective door guardsElectronic controllers

Technical Brochures Available

Representatives

05.0421.01E99

Germany

Helmut Mauell GmbHAm Rosenhügel 1–7D-42553 VelbertTel.: +49 (0)20 53 /1 30Fax.: +49 (0)20 53 /1 36 53Internet: www.mauell.comE-Mail: [email protected]

For an up-to-date list of all our representa-tives and branch offices, please visit ourhomepage: www.mauell.com

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Test Switch - e-trd.rue-trd.ru/userfiles/File/files/205_Testovyj_perekljuchatel_P421_(eng).pdfThe test switch P 421 is used for the easy testing of network master and differential

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