Replace battelies
BATTERY TYPE
R6P(1.5V×6)
：
0.4 N・m
BREAKER TESTER Y-250
TYPES
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
INSTRUCTIONS MANUAL
Discharge the electrostatic charge
from the operator's body before
test. Otherwise,the indicator of
Y-250 may be reset.
Reset condition
of indicator
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
CURRENT
Reference for
test
Reference
Type
current of
test
NV250-SEW/HEW
NF125-SGW(RE)
NF125-HGW(RE)
NF160-SGW/HGW(RE)
NF250-SGW/HGW(RE)
NF400-SEW/HEW
NF400-REW/UEW
NV400 -SEW/HEW
NV400-REW
NF630-SEW/HEW
NF630-REW
NV630-SEW/HEW
NF800-CEW/SEW
NF800-HEW/REW
NF800-UEW
NV800-SEW/HEW
NF1000-SEW
NF1250-SEW
NF1600-SEW
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 pract ice, it is set up as setting value.
Only when tested by "Y-250".
1000
1250
1600
250
32
63
100
125
160
250
400
630
800
Current setting
Ir
125 50 53
150 60 63
175 70 74
200 80 84
225 90 95
16 53〜 6250 30〜40 100
32 100 105
32 51 53
75
125
160
250
200 50 53
225 56 60
250 62 66
300 75 79
350 87 92
400 100 105
300 47 48
350 55 57
400 63 65
500 79 81
600 95 98
630 100 105
400 50 53
450 56 60
500 62 66
600 75 79
700 87 92
800 100 105
500 50 53
600 60 63
700 70 74
800 80 84
900 90 95
1000 100 10 5
600 48 50
700 56 60
800 64 67
1000 80 8 4
1200 96 101
1600 100 10 5〜125 60 〜80 200
LTD pick up
current
T )(A)
(%I
100 105
63 65
100 105
60 63
100 105
50 53
100 105
50 53
100 105
88140 0 92
941500 98
(%I
T)(%IT)
〜 62 30〜40 100
〜 75 36〜48 120
〜 87 42〜56 140
〜100 48〜64 160
〜112 5 4〜72 180
〜125 60〜80 200
〜 63 30〜40 102
〜125 60〜80 20063
〜 80 40〜50 12663
〜125 60〜80 200100
〜 75 36〜48 120
〜125 60〜80 200
〜 62 30〜40 10080
〜125 60〜80 200
〜 62 30〜40 100125
〜125 60〜80 200
〜 62 30〜40 100
〜 70 34〜45 112
〜 78 37〜50 125
〜 93 45〜60 150
〜109 5 2〜70 175
〜125 60〜80 200
〜 60 30〜38 95
〜 70 35〜4 4 111
〜 80 40〜50 127
〜100 50 〜62 159
〜120 60〜74 19 0
〜125 60〜80 200
〜 62 30〜40 100
〜 70 34〜45 112
〜 78 37〜50 125
〜 93 45〜60 150
〜109 5 2〜70 175
〜125 60〜80 200
〜 62 30〜40 100
〜 75 36〜48 120
〜 87 42〜56 140
〜100 48〜64 160
〜112 5 4〜72 180
〜125 60〜80 200
〜 60 29〜38 96
〜 70 34〜45 112
〜 80 38〜51 12 8
〜100 48〜64 160
〜120 5 8〜77 192
105
〜1251001250 60〜80 200
〜109 5 3〜70 175
〜117 5 6〜75 188
70% PAL pick
up current
〜40 53〜 6250800
〜50 65〜 8063100 0
〜60 79〜 9375120 0
Operating time at 200%
Signal
level
T)
(%I
10030
12740
15045
A number of flashing and characteristics setting point
Number 87654321 109
Ir (A)
TL (S)
IS (×Ir)
TS (S)
IP (×Ir)
Lighting-up time of 70% LED
Ref. Current
Time
(s)
（A）
Min. adjust
Max. adjust
125
10063
6.3
5.1
10
10
3.52.5
160
6
5
10
10
For 125, 160 and 250A Frame100806012
For 400, 630, 800, 1000, 1250 and 1600A Frame100 1506012
432
0.30.20.10.0 6
9
0.950.850.75 1.00.90.80.7
10 10101010
80063040025022532 1000
555555
Operating
time
T =12
L
10〜 14
T =60
L
48〜 72
T =80
L
64〜 96
L
80〜120
T =12
L
10
〜 14
T =60
L
〜 72
48
T =100
L
〜120
80
T =150
L
〜180
120
1250 160 0
5105105
108765
PAL operating
time
T =12
L
5〜 7
T =60
L
24
T =80
L
32
T =100T =100
L
40
T =12
L
5
T =60
L
24
T =100
L
40
T =150
L
60
10
〜36
〜48
〜60
〜 7
〜36
〜60
〜90
STD and INST
operating time
*1
(s)(s)(s)IT(A)
T =0.06
S
0.02〜0.06
T =0.1
S
〜0.11
0.05
T =0.2
S
〜0.22
0.14
T =0.3
S
〜0.34
0.22
INST
0.00
〜0.02
Specification
Test ite ms
The range of measuring time
Power source
Ambient temperature for use
Outer dimensions
MODE SWITCH
LTD, PAL pickup and operating time
〜300% of the maximum rated current
30%
Operating time
STD 1500% of the maximum rated current
INST 2000% of the maximum rated current
Setting point of characteristics
CHECK
〜0.99s ±0.01s
0.00
1.00
〜999s ±1%
Battery type R6P(1.5V×6)
0
℃〜40℃
95×158×48mm
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
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.
ON
OFF
2
POWER switch ON
OPEN
1
BREAKER
ON
LN210A425H05
IB63819-E 1512 (MEE)
UP/DOWN SWITCH
(LTD or PAL mode)
push push push push push
push UP switch
push DOWN switchpush DOWN switchpush UP switch
LTD pick up current test
PAL pick up current test
NV250-SEW : IT =225A
BREAKER
1
ON
Operating time
MODE
Current
2
3
：L
START
LTD pickup
LTD operating time test
NV250-SEW
BREAKER
1
ON
Operating time
200%
LTD
Current
LEVEL
3
2
：200
MODE
：L
operating time
STD operating time test
NV250-SEW
BREAKER
1
MODE
2
ON
：S
Operating time
Current
STD
operating time
INST operating time test
NV250-SEW
3
START
4
START
5
OVER LED ON
LTD pickup
T
103%I
STOP
6
LEVEL
4
：UP
7
STD operating time test
8
BREAKER trip
5
TRIP
Operating time
100s
LED ON
6
Operating
time
0.3s
4
TRIP
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 case of 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".
When checking the setup, please perform setting value
check mode (mode-C).
LED ON
5
NV250-SEW : IＴ =225A
1
BREAKER
ON
Operating time
MODE : P
2
3
START
Current
PAL pickup
PAL operating time test
NV250-SEW
1
BREAKER
Caution
PAL- M
PAL a
P2
P1
(PALc)
ON
PAL a
Operating time
200%
Current
2
CONNECT
4
PALc
LEVEL : 200
MODE : P
3
PAL
operating time
Setting points of characteristics
NV250-SEW
BREAKER
1
ON
2
MODE
：C
3
START
Number
r(A )
I
TL(S)
IS(×Ir )
TS(S)
P(×Ir )
I
Setting points
Ir
：225A
L ：100s
T
I
S ：2.5×Ir
T
S ：0.1s
IP ：0.9×Ir
1
2345678910
Lighting-up time of 70% LED
Ref. current(A)
Min. adjust
Time
Max. adjust
(s)
60
12
6012
2
2.5
0.06
0.75
80
100
3
0.1
0.8
100
63
32
5
10
100
150
125
160
225
250
400
5.1
6.3
6
5
5
5
10
10
10
10
9
10
10
For 125,160 and 250A Frame
For 400,6 30,800,1000,1250 and 1600A Frame
3.5
0.2
45
0.3
0.9
67 810
1.0
0.950.850.7
5
630
5
10
800
10
70%LED
ON
70%LED
OFF
1000
1250
1600
5
5
5
10
10
START
Ir
9s
2s 0.5s 0.5s 2s
5
10
9s
Number：4
LEVEL : UP
4
VAC
230
TL
Number
Number
5
START
1
：2
STD operating time test
7
BREAKER trip
8
Voltage
70% LED ON
4
TS
S
I
：3
Number
1
：5
1
2
PAL LED ON
5
PAL pickup
Ｔ
63%I
STOP
6
STOP SIGNAL TERMINAL
Operating
time
50s
LED
6
ON
STOP
5
STOP
IP
32
432
1
5432
Operating time
INST operating time
Current
1
BREAKER
ON
MODE
2
：I
START
3
4
TRIP
Operating time
0.01s
LED ON
5
After the test
1
POWER switch OFF
3
Close
pull
2
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