background image

OPEN

NV800-SEW, NV800-HEW
NF1000-SEW, NF1250-SEW, NF1600-SEW

TYPE
NV250-SEW, NV250-HEW
NF400-SEW, NF400-HEW, NF400-REW, NF400-UEW
NV400-SEW, NV400-HEW, NV400-REW
NF630-SEW, NF630-HEW, NF630-REW, NV630-SEW, NV630-HEW
NF800-CEW, NF800-SEW, NF800-HEW, NF800-REW
NF800-UEW, NV800-SEW, NV800-HEW
NF1000-SEW, NF1250-SEW, NF1600-SEW

NO CURRENT

Reset condition

of indicator

Discharge the electrostatic charge

from the operator's body before

test. Otherwise,the indicator of

Y-250 may be reset.

2

1

INSTRUCTIONS MANUAL

BREAKER TESTER Y-250

ON

OFF

BREAKER

  ON

POWER switch ON

UP/DOWN SWITCH

MODE SWITCH

push UP switch

push

push

push

push

push

push DOWN switch

push DOWN switch

push UP switch

95

×

158

×

48mm

0

℃〜

40

Battery type R6P

(

1.5V

×

6

)

0.00

0.99s    

±

0.01s

1.00

999s     

±

1%

LTD, PAL pickup and operating time

Operating time

Setting point of characteristics

30%

300% of the maximum rated current

STD 1500% of the maximum rated current

INST 2000% of the maximum rated current

CHECK

Specification

CURRENT

(

LTD or PAL mode

)

Test items

Power source
Ambient temperature for use
Outer dimensions

The range of measuring time

NV250-SEW, NV250-HEW
NF125-SGW

(

RE

)

, NF125-HGW

(

RE

)

NF160-SGW

(

RE

)

, NF160-HGW

(

RE

)

NF250-SGW

(

RE

)

, NF250-HGW

(

RE

)

NF400-SEW, NF400-HEW, NF400-REW, NF400-UEW
NV400-SEW, NV400-HEW, NV400-REW
NF630-SEW, NF630-HEW, NF630-REW, NV630-SEW, NV630-HEW
NF800-CEW, NF800-SEW, NF800-HEW, NF800-REW, NF800-UEW

TYPES

TYPE
NF125-SGW

(

RE

)

, NF125-HGW

(

RE

)

NF160-SGW

(

RE

)

, NF160-HGW

(

RE

)

NF250-SGW

(

RE

)

, NF250-HGW

(

RE

)

The connector can be inserted only

in the prescribed direction.

 5

 7

T =12

L

 10

 14

L

T =12

100

63

10

5.1

NV250-SEW/HEW

NF125-SGW

(

RE

)

NF125-HGW

(

RE

)

NF160-SGW/HGW

(

RE

)

NF250-SGW/HGW

(

RE

)

250

32
63

100
125
160
250

NF400-SEW/HEW

NF400-REW/UEW

NV400-SEW/HEW

NV400-REW

400

NF630-SEW/HEW

NF630-REW

NV630-SEW/HEW

NF800-CEW/SEW

NF800-HEW/REW
NV800-SEW/HEW

NF800-UEW

NF1000-SEW

NF1250-SEW

NF1600-SEW

630

800

1000

1250

1600

16

53

 62

50

30

40  

100

32

100

105

125

60

80  

200

32

51

53

 63

30

40  

102

100

105

125

60

80  

200

63

63

65

 80

40

50  

126

63

100

105

125

60

80  

200

100

125

60

63

 75

36

48  

120

A number of flashing and characteristics setting point

75

100

105

125

60

80  

200

160

50

53

 62

30

40  

100

80

100

105

125

60

80  

200

250

50

53

 62

30

40  

100

125

100

105

125

60

80  

200

*1

I

(

A

)

10

125

6

10

160

5

Replace battelies

10

6.3

Note *1: In case of type NF125/160/250-SGW/HGW 

(

RE

)

.

 

Even if it makes Ts into which value 

(

0.06-0.1-0.2-0.3

)

 in the test of

 

STD pick up 

(

mode-S

)

, the test result is displayed as "0.06".

 

However, it is not the abnormalities of the breaker tester.

In practice, it is set up as setting value.
Only when tested by "Y-250".

INST

0.00

0.02

T =0.06

S

S

S

S

T =0.1

T =0.2

T =0.3

0.02

0.06

0.05

0.11

0.14

0.22

0.22

0.34

L

L

L

L

L

L

L

L

T =60

T =100

T =150

T =12

 5

 7

24

36

40

60

60

90

T =12

T =60

T =100

T =150

 10

 14

 48

 72

 80

120

120

180

24

36

32

48

40

60

L

L

L

T =60

T =80

T =100

T =100

L

 80

120

T =80

L

 64

 96

T =60

L

 48

 72

(

s

)

(

s

)

(

s

)

I

T

(

A

)

(

%I

T

)

(

%I

T

)

(

%I

T

)

(

%I

)

(

A

)

Ir

STD and INST

operating time

PAL operating

time

Operating

time

Signal

level

Operating time at 200%

70% PAL pick

up current

LTD pick up

current

Current setting

Reference

current of

test

Type

1600

100

105

125

60

80  

200

94

1500

98

117

56

75  

188

88

1400

92

109

53

70  

175

150

45

60  

79

 93

75

1200

127

40

50  

65

 80

63

1000

100

30

40  

53

 62

50

800

105

125

100

1250

60

80  

200

1200

96

101

120

58

77  

192

1000

80

84

100

48

64  

160

800

64

67

 80

38

51  

128

700

56

60

 70

34

45  

112

600

48

50

 60

29

38  

96

1000

100

105

125

60

80  

200

900

90

95

112

54

72  

180

800

80

84

100

48

64  

160

700

70

74

 87

42

56  

140

600

60

63

 75

36

48  

120

500

50

53

 62

30

40  

100

800

100

105

125

60

80  

200

700

87

92

109

52

70  

175

600

75

79

 93

45

60  

150

500

62

66

 78

37

50  

125

450

56

60

 70

34

45  

112

400

50

53

 62

30

40  

100

630

100

105

125

60

80  

200

600

95

98

120

60

74  

190

500

79

81

100

50

62  

159

400

63

65

 80

40

50  

127

350

55

57

 70

35

44  

111

300

47

48

 60

30

38  

95

400

100

105

125

60

80  

200

350

87

92

109

52

70  

175

300

75

79

 93

45

60  

150

250

62

66

 78

37

50  

125

225

56

60

 70

34

45  

112

200

50

53

 62

30

40  

100

225

90

95

112

54

72  

180

200

80

84

100

48

64  

160

175

70

74

 87

42

56  

140

150

60

63

 75

36

48  

120

125

50

53

 62

30

40  

100

I

(

×

Ir

)

0.95

0.85

0.75

1.0

0.9

0.8

0.7

T

(

S

)

0.3

0.2

0.1

0.06

I

(

×

Ir

)

3.5

2.5

10

8

7

6

5

4

3

2

For 400, 630, 800, 1000, 1250 and 1600A Frame

100

150

60

12

For 125, 160 and 250A Frame

100

80

60

12

T

(

S

)

Lighting-up time of 70% LED

(

s

)

Time

Max.    adjust

Min.     adjust

Ref. Current

A

9

5

5

5

5

5

5

10

10

10

10

10

800

630

400

250

225

32

1000

5

10

5

10

5

10

1250 1600

Number

8

7

6

5

4

3

2

1

10

9

Reference for 

test

0.4 N

m

BATTERY TYPE

    R6P

(

1.5V

×

6

)

IB63819-E 1512 

(

MEE

)

LN210A425H05

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