Mitsubishi Electric Y-250 User manual
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 switchpush DOWN switchpush 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
10063
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 53〜6250 30〜40 100
32 100 105〜125 60〜80 200
32 51 53〜63 30〜40 102
100 105〜125 60〜80 20063
63 65〜80 40〜50 12663
100 105〜125 60〜80 200100
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 10080
100 105〜125 60〜80 200
250
50 53〜62 30〜40 100125
100 105〜125 60〜80 200
*1
Ir (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 =100T =100
L
80〜120
T =80
L
64〜96
T =60
L
48〜72
(s)(s)(s)IT(A)(%IT)
(%IT)(%IT)
(%IT )(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
941500 98〜117 56〜75 188
881400 92〜109 53〜70 175
15045〜6079〜93751200
12740〜5065〜80631000
10030〜4053〜6250800
105〜1251001250 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 5 4〜72 180
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 35〜4 4 111
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
IP (×Ir)
0.950.850.75 1.00.90.80.7
TS (S)
0.30.20.10.06
IS (×Ir)
3.52.5
108765
432
For 400, 630, 800, 1000, 1250 and 1600A Frame100 1506012
For 125, 160 and 250A Frame100806012
TL (S)
Lighting-up time of 70% LED
(s)
Time
Max. adjust
Min. adjust
Ref. Current
（A）
9
555555
10 10101010
80063040025022532 1000
5
10
5
10
5
10
1250 1600
Number 87654321 109
Reference for
test
0.4 N・m
BATTERY TYPE
：
R6P(1.5V×6)
IB63819-E 1512 (MEE)
LN210A425H05
NV250-SEW
Operating time
4TRIP
Operating time
LED ON
5
START
3
2
1BREAKER
ON
MODE：I
Current
INST operating time
0.01s
BREAKER
ON
MODE：S
6
103%IT
100s
STOP
6
5OVER LED ON
LEVEL：UP
4
START
MODE：L
BREAKER
ON
1
Current
LTD pickup
Operating time
NV250-SEW : IT=225A
Current
200%
Operating time
LTD
operating time
1
LEVEL：200
3
MODE：L
2START
4
LED ON
NV250-SEW
2
BREAKER
ON
1
START
3
NV250-SEW
STD
operating time
Current
Operating time
STD operating time test
7
BREAKER trip
8
LTD pickup
4TRIP 5
0.3s
LED ON
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).
Operating
time
3
2
TRIP
5
Operating time
LTD pick up current test
INST operating time test
LTD operating time test
STD operating time test
100
2s 0.5s 0.5s 2s
After the test
63
5.1
10
32
5
10
6.3
10
125
6
10
160
5
10
225
5
9
250
5
10
400
5
10
630
5
10
800
5
10
1000
5
10
1250
5
10
1600
5
10
3Close
432
1
32
1
2
1
9s
5432
1
S
IP
TS
I
TL
Ir
Number：4
Number：2
Number：5
Number：3
9s
1
Lighting-up time of 70% LED
Ir(A)
12
IP(×Ir )
TS(S)
IS(×Ir )
TL(S)
Number
0.950.850.7
2345678910
2
60
0.06
0.75
2.5
0.8
0.1
3
80
0.2
3.5
100
0.9
0.3
45
1.0
67 810
STOP
70%LED
OFF
70%LED
ON
Setting points START
NV250-SEW
Setting points of characteristics
IP ：0.9×Ir
TS ：0.1s
IS ：2.5×Ir
TL ：100s
Ir ：225A
START
3
70% LED ON
4
5STOP
BREAKER
ON
1
150
100
6012 For 400,630,800,1000,1250 and 1600A Frame
For 125,160 and 250A Frame
3
4LEVEL : 200
MODE : P
2
1BREAKER
ON
PALc
PALa
VAC
230
P1
(PALc)
P2
PALa
PAL-M
PAL operating time test
START
MODE : P
BREAKER
ON
1
2
3
4LEVEL : UP
STOP
6
PAL LED ON
5
CONNECT
63%IＴ
PAL pick up current test
Operating time
NV250-SEW : IＴ=225A
PAL pickup
PAL pickup
Current
PAL
operating time
Current
Operating time
Caution
NV250-SEW
200%
7STD operating time test
8BREAKER trip
Voltage
STOP SIGNAL TERMINAL
pull
POWER switch OFF
1
MODE：C
2
(s)
Time
Max. adjust
Min. adjust
Ref. current(A)
6
50s
Operating
time
START
5
LED
ON
2
