Panel Mounted Multi Power Meter 51-UNIT
MODEL
MULTI POWER METER
51U
MODEL & SUFFIX CODE SELECTION
110 (4.33)
51U–❑❑❑–❑❑
R
S
T
MODEL
A
V
INPUT (balanced load) *1
R-S
S-T
T-R
110
(4.33)
2
0 : Single-phase / 2-wire, 105V / 5AAC (P. 5/16)
*
x1kW
x10kW
1 : Single-phase / 3-wire, 105V / 210V / 5AAC (P. 7/16)
2 : 3-phase / 3-wire, 220V / 5A AC (P. 10/16)
3 : 3-phase / 3-wire, 110V / 5A AC (P. 10/16)
4 : 3-phase / 4-wire, 110V / √ 3 V / 5A AC (P. 13/16)
DISPLAY ITEMS *3
DISPLAY
126
(4.96)
mm (inch)
Functions & Features
A : A × 3
B : V × 3
C : A × 3, V × 3
D : A × 3, V × 3, kW
E : A × 3, V × 3, kWh
F : A × 3, kW, kWh
G : Hz, PF, kvar
H : V × 3, MV
• Measuring all major factors required for power &
energy management • Transducer combined with
3 displays in one enclosure • RS-485 or DC current
output • Totalized counter values stored in non-vola-
tile memory • Occupying less panel space, requir-
ing fewer connection• Easily replacing standard 110
mm (4 /16 in.) square size, long scale meter • Pa-
rameters are field-selectable
Application Examples
5
0
, V0
J : A × 3, DA, MDA
K : A × 3 or DA, MDA, alarm setpoint
L : Hz, PF, kW
M : PF, kW, kWh
• Updating conventional power meter to a remote
controlled power logger, only with additional trans-
mitter output wiring • Installed within an indus-
trial piece of electrical equipment
N : V × 3, kW, kWh
P : A × 3 or DA or MDA, V × 3, kWh
Q : A × 3, PF, kW
R : A × 3, PF, kvar
S : A × 3 or PF, kW, kWh
T : A × 3, PF, kvarh
U : V × 3, Hz
*1 : Some display items or output types are not selectable
according to the input type. See the detailed selection
guide in the following pages.
*2 : Page No. of the detailed selection guide
*3 : V = Line voltage
kW = Kilowatt
A = Line current
kvar = Kilovar
W : A × 3 or DA or MDA, V × 3, alarm setpoint
X : A × 3, kvar, kvarh
Y : Hz, PF, kWh
OUTPUT
0 : None
1 : 4 – 20mA DC, 3 points
2 : 4 – 20mA DC, 2 points + pulse
3 : 4 – 20mA DC, 2 points + reset input
4 : RS-485 (MsysNet use only. Consult Factory.)
AUXILIARY POWER SUPPLY
M : 85 – 264V AC
PF = Power factor
kWh = Kilowatthours
DA = Demand (current)
MDA = Maximum demand (current)
V0 = Zero-phase voltage
Hz = Frequency
kvarh = Kilovarhours
MV0 = Maximum zero-phase voltage
DEFAULT SETTING
ITEM
DEFAULT SETTING
CT primary rating
5.00A (element S for demand,
time lag 15 min.)
R : 24V DC
P : 110V DC
VT primay rating
GVT tertiary rating
110.0V or 220.0V, same as input rating
110.0V
REMOTE CONTROL
Frequency range
45 – 65 Hz
Pulse out. scaling factor 1 kWh/pulse (kvarh/pulse)
Demand alarm setpoint 100%
1 : 85 – 132V AC or 85 – 143V DC
2 : 20 – 30V DC
RS-485
Address: 01
Transmission speed: 4800 bps
3 : 170 – 264V AC
P. 1 / 16 ES-6481 Rev.9