Specifications
AC Voltmeters
Mechanical Indicators
51
Specifications
Size (width ✕ height) mm
Model name
Operation principle
Accuracy (grade)
Frequency
Scale length (mm)
Consumption VA (VA)
Weight (kg)
Indicator rating
Direct indicator
Indicator combined with VT
Delivery period classification
64✕60
YS-206NAV
Page with outer dimensions drawing
55
3
0.1
50V
75, 100, 110V
150V
190, 260V
300V
400, 500V
600V
85✕75
YS-208NAV
70
3
0.1
100✕85
YS-210NAV
85
3
0.15
82✕82
YS-8NAV
70
3
0.15
102✕102
YS-10NAV
90
3
0.15
122✕122
YS-12NAV
100
6
0.4
80✕80
LS-80NAV
2.5
124
3
0.4
110✕110
LS-110NAV
1.5
175
3
0.5
Movable iron core
2.5
Movable iron core
2.5
50 and 60Hz
1.5
Movable iron core
Maximum scale value
3735 36
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—
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VT ratio
440/110V
3300/110V
6600/110V
Besides the
abo
ve
/110V
Scale
600V
4500V
9000V
VT ratio ✕
150V
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-110NAVYS-8NAV
Load
Fig. 1 AC voltmeter (direct)
Load
VT
Note 2
Fig. 2
AC voltmeter (combined with VT)
Load
Resistor (KR-1)
Fig. 3
AC voltmeter (with KR-1 type resistor)
Load
1
1
2
2
3
R
V
V
VT
S
T
Voltage
changeover
switch
Note 2
Fig. 4
AC voltmeter (combination with 3-phase circuit voltage changeover switch)
Connection diagrams
Indicator combined with instrument voltage transformer
Model name
Model name
Indicator rating
Scale
Scale
Cover type
Cover type
Special specifications
Direct indicator
YS-8NAV
YS-8NAV
150V
Indicator rating
300V B
B
0-300V
0-9000V
VT ratio
6600/110V
Double scale, colored
lines, etc.
Special specifications
Double scale, colored
lines, etc.
The items in must be specified.
Number of
units
10
Number of
units
10
M5 terminal screw
160
70
20
200 (mounting pitch)
225 11
6.5
1.6
84
Mounting hole
KR-1 multiplier
Outer dimensions of accessory
Remarks
Note 1.
(1)
A specially rated AC voltmeter with a rectifier indicator and a maximum scale of 600V or less is manufactured.
(2)
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.
The LS-110NAV and LS-NAV direct 600V indicators are provided with the KR-1 multiplier as an accessory (power
consumption is approximately 6VA). The KR-1 multiplier is a dedicated accessory (non-compatible accessory), and
thus cannot be used in combinations other than those designated for the indicators.
Note 2. For low-voltage circuits, grounding of the secondary side of the instrument voltage transformer is unnecessary.
Ordering method