Specifications

AC Ammeters
Mechanical Indicators
49
Specifications
Size (width ✕ height) mm
Model name
Operation principle
Accuracy (grade)
Frequency
Scale length (mm)
Consumption VA (VA)
Weight (kg)
Indicator rating and delivery period classification
64✕60
YS-206NAA
Page with outer dimensions drawing
55
1.0
0.1
500mA
1, 3A
5, 10, 15, 20, 30A
5/5, 10/5, 15/5, 20/5, 30/5A
40/5, 50/5, 60/5, 75/5A
100/5, 150/5, 200/5, 250/5A
300/5, 400/5, 500/5A
Ordinary






Expanded




Ordinary






Expanded




Ordinary






Expanded




Ordinary




Expanded




Ordinary






Expanded





Ordinary





Expanded






Ordinary
—





Expanded
—





Ordinary
—




Expanded
—




85✕75
YS-208NAA
70
1.0
0.1
100✕85
YS-210NAA
85
1.0
0.15
82✕82
YS-8NAA
70
1.0
0.1
102✕102
YS-10NAA
90
1.0
0.15
122✕122
YS-12NAA
100
1.0
0.3
80✕80
LS-80NAA
2.5
124
2.0
0.3
110✕110
LS-110NAA
1.5
175
2.0
0.4
Movable iron core
2.5
Movable iron core
2.5
50 and 60Hz
1.5
Movable iron core
Maximum scale value
Direct indicator
Indicator combined with CT
Besides the above
/5A (indicator rating 5A)
/1A (indicator rating 1A)
3735 36
Standard
product
Immediate delivery
 Quasi-standard
product
Within 20 days
Special
product
21 to 60 days
Symbol
Reference delivery period
Delivery period classification
Rectangular indicators Wide-angle indicators
L-N Series
Y-2N Series Y-N Series
LS-110NAAYS-8NAA
Expanded scale indicator
Use expanded scale indicators in motor circuits or other locations where overcurrents flow temporarily.
The effective measurement range is up to the indicator rating value (1x value). The expanded scale part is for reference only, and
the scale numerals are indicated in red.
Example of expanded scale diagram (YS-206NAA)
 Recommended ammeter scale values for motor circuits
Specifications
Rated scale
value
1A
3A
5A
10A
15A
20A
30A
Indicator rating: 5A
Indicator rating: 1A
Expanded scale value
Direct
Combined
with CT
Expanded 2x
2A
6A
10A
20A
30A
40A
60A
CT ratio✕10A
CT ratio✕2A
Expanded 3x
3A
9A
15A
30A
45A
60A
90A
CT ratio✕15A
CT ratio✕3A
Expanded 5x
5A
15A
25A
50A
75A
—
—
CT ratio✕25A
CT ratio✕5A
 Mitsubishi Electric uses a three-fold expanded scale indicator as the standard specification.
Motor output (kW)
0.2
0.4
0.75
1.5
2.2
3.7
5.5
7.5
11
15
18.5
22
30
37
Rated current
(reference value A)
1.8
3.2
4.8
8
11.1
17.4
26
34
48
65
79
93
125
160
Ammeter scale (Expanded 3x)
0-3-9A
0-5-15A
0-7.5-22.5A
0-10-30A
0-15-45A
0-25-75A
0-30-90A
0-50-150A
0-60-180A
0-75-225A
0-100-300A
0-120-360A
0-150-450A
0-200-600A
CT ratio
—
5/5A
7.5/5A
10/5A
15/5A
20/5A
30/5A
40/5A
60/5A
75/5A
100/5A
120/5A
150/5A
200/5A
Recommended scale
200V 3-phase induction motor
Remarks
Please make sure to read the “Safety Precautions” (pp.5-8) and the “Selection Precautions” (p.9) to
assist in selecting the model and use specifications suited to the application.
Remarks
Ensure that a current exceeding the rating is applied such that (the applied current (A)/rated current (A))
2
✕application duration does not exceed 500.