ECO-POWER METER
KW9M
Multi function type developed by adding a power
surveillance function to a simple power meter
Application examples
Office area
Distribution board
(for lighting system)
Motor pump, FP WEB-SERVER
blower and
with expansion
fan heater
Lights
KW Watcher
Excel
KW9M
KW9M
LAN
RS485
Factory area
Distribution board
(for power system) Control panel
Motor
Production
equipment
FP WEB-SERVER
with expansion
For details of products other
than KW9M, please refer to
the individual catalogs.
Browser
Smartphone
KW9M
KW9M
RS485
KW9M
Energy harvesting
Solar tracker
KW9M
FP WEB-SERVER
with expansion
Wind farm
KW9M
KW9M
Specifications
Order guide
Product name
Phase and wire system
Measurement voltage
Measurement current 1)
Part no.
1-phase, 2-wire system
1-phase, 3-wire system
3-phase, 3-wire system
3-phase, 4-wire system
0 to 500V AC
1 to 4000A
AKW91110
KW9M Eco-POWER METER
Standard type
1)
Please contact our sales offices for current transformers (CT) with a secondary current of 1A or 5A.
Measurement input specifications
Measurement items
Item
Electric energy
(import)
Electric energy
(export)
Instantaneous
electric power
Unit
Active
kWh
Reactive
kvarh
Apparent
kVAh
Active
kWh
Reactive
kvarh
Active
kW
Reactive
kvar
Apparent
kVA
Data display range
0.000 to 9999999.9
Input voltage
0.000 to 9999999.9
Voltage
–99999 to 0.000 to 99999
A
0.000 to 8000.0
Voltage
V
0.00 to 99999
Power factor
–1.000 to 0.000 to 1.000
Hz
0.00 to 99.99
Conversion value
0.000 to 9999999.9
Temperature
°C
–100.0 to 0.0 to 100.0
Rated operating
voltage
Description
AC
85 to 264V
DC
100 to 300V
Rated frequency
Rated power consumption
Input current
(with CT)
Max. current
Current Overload
capacity
Resolution
Accuracy1)
Measurement speed
Power failure memory
Dimensions W/H/D
Weight
Primary current
4000A or less
Secondary current
1A or 5A
10A (200% of input current)
1000% of input current for 3s
0.001A
0.5%
1.0%
Active power class 1 (IEC 62053-21)
Reactive power class 2 (IEC 62053-23)
Accuracy1)
TemperAccuracy
ature
1)
±5.0°C
Errors resulting from current transformers (CT) and voltage transformers (VT) are not
considered.
3W approx. (240V DC at 25°C)
10ms
Operation: –25 to +55°C
Communication
Storage: –25 to +70°C
Display method
1.00 to 600.00 (set with setting mode)
Voltage transformer (VT) is required when you measure a load
with voltage over rated voltage.
50/60Hz
Accuracy guarantee: –10 to +55°C
Ambient humidity
L-L
0 to 500VAC
L-L
0 to 500VAC
1P3W
L-N
0 to 250VAC
3P3W
L-L
0 to 500VAC
L-L
0 to 500VAC
3P4W
L-N
0 to 289VAC
2MΩ or more (L-N; V1/V2/V3-Vn)
0.01V
0.5%
5VA approx. (240V AC at 25°C)
Momentary power-off time
Ambient temperature
Impedance
Resolution
Accuracy1)
VT ratio
Power
General unit specifications
Item
Description
1P2W
Current
Frequency
Item
30 to 85% RH (at 20°C) non-condensing
LCD with backlight
Sampling rate
1.024 MHz (1.0µs approx.)
Data update time
100ms
Internal memory (overwrite 1010 or more)
Saved data: setting and measurement values
96 x 96 x 56mm (without terminal block)
96 x 96 x 68mm (with terminal block)
450g approx.
Item
Protocol
Max. number of
stations
Transmission speed
RS485
USB (Full Speed)
MEWTOCOL/Modbus
(RTU) (selectable)
MEWTOCOL
99
1
38400/19200/9600/4800/2400/1200bit/s
Dimensions
[mm]
68
□96
14
56
Terminal block
70.4
25.6
25.6
70.4
□91 ±0.4
Terminal
block A
LCD
SET key
MODE key
Mounting
clip
ITEM / Increase key
SHIFT / Decrease key
Panel cut-out
Terminal block B
Mounting screw: M4×10
Panel mounting
92 ±0.5
1) Remove the mounting clips from the unit.
2) Insert the unit from the front of the panel.
3) Attach the mounting clips at the both side of the case and secure in place with the screws.
• Applicable panel thickness: 1 to 5mm
Conforming to
EMC Directive
92 ±0.5
When mounting several units adjacent to each
other, keep at least 130mm of space on all
sides measured from the center of the unit.
Terminal arrangement and wiring diagrams
Rear view
Wiring diagrams
1-phase, 2-wire Terminal block A (upper)
system
1
2
3 4
5
6
USB port
4
L+
V2
V1
5
V3
6
Vn
7
NC
8
SG
AUX
(Power supply) Voltage measurement input
4
5
6
7
8
*CT1
k
*CT2
l
*CT3
k
*CT3
l
NC
NC
Functions
*CT2
k
A+
RS485
Terminal block B (lower) 8P
Terminal
1
2
3
number
*CT1
l
9
B-
5
k
6
l
CT2
CT3
(To measure 3 circuits)
K
X
X
X
X
X
L
Terminal block B (lower)
1
k
2
3
4
l
AUX
(Power supply)
5
6
k
l
CT1
L1 (R)
L2 (N/S)
CT2
L3 (T)
K
3-phase, 4-wire Terminal block A (upper)
system
1
2
3 4
5
6
Breaker
X
X
X
X
X
X
1
k
2
l
3
k
4
l
5
k
6
l
CT1
L1 (R)
CT2
L2 (S)
CT3
L3 (T)
N
L
Terminal block B (lower)
AUX
(Power supply)
Power
supply side
current transformer
4
l
CT1
N
Current measurement input
*CT =
3
k
X
L1 (R)
Breaker
10
Power
supply side
Terminal block A (upper) 10P
Terminal
1
2
3
number
N-
X
1-phase, 3-wire
Terminal block A (upper)
system
3-phase, 3-wire
1
2
3 4
5
6
system
Terminal arrangement
Functions
AUX
(Power supply)
measure
( To3 circuits
)
2
l
Load
side
Power
supply side
Terminal
block B
(8)
X
1
k
Load
side
X
Breaker
Terminal block B (lower)
K
L
Load
side
Terminal
block A
(10)
Features
Feature 1
Feature 4
• Large-screen LCD with backlight clearly displays values in
four lines
• High accuracy! Instantaneous active power:
1%, class 1 (IEC62053-21)
Display updating time: 0.1s
• Capable of displaying currents as low as 1mA
• This allows standby power consumption to be monitored,
which helps save energy
As low as 1mA
can be displayed
Large key switches for
easy operation
96mm
Feature 5
96mm
Feature 2
• The total and individual power values of each phase are
displayed on one screen, enabling you to check the phase
balance at a glance. The data is useful for power quality
checks and power factor improvements.
• Capable of displaying voltages, currents, electric power
(active, reactive, apparent) and power factor
Active power
Phase 1
Phase 2
LEAD
LAG
DEMAND
MAX
MIN
• Regenerative power can also be measured by one
KW9M Eco-POWER METER. Bidirectional integrated
electric power of each circuit can be measured.
Apparent power
Reactive power
LEAD
LAG
DEMAND
MAX
MIN
LEAD
LAG
DEMAND
MAX
MIN
Export
Phase 3
Import
Total
Phase 1
Active
Reactive
LEAD
LAG
DEMAND
MAX
MIN
Phase 3
Phase 2
LEAD
LAG
DEMAND
MAX
MIN
Feature 6
LEAD
LAG
DEMAND
MAX
MIN
• Measuring power using large-capacity general-purpose
CT (secondary side current 1A/5A)
Apparent
Current
LEAD
LAG
DEMAND
MAX
MIN
Breaker
Voltage (line)
Voltage (phase)
LEAD
LAG
DEMAND
MAX
MIN
LEAD
LAG
DEMAND
MAX
MIN
ON
Power supply
K
Average
Secondary current
K
CT with 2nd current
1A/5A
No CT
required
L
Feature 3
KW9M
• Panel-mount type capable of multi-circuit measurement
• Capable of simultaneously measuring up to three circuits in
a single phase, two-wire system of same power supply
Production equipment
Feature 7
• Compatible with AC/DC power supply
Switch box
AC
Power 1
supply 2
L
Load 1
*CT1
*CT2
*CT3
*CT = current transformer
Load 2
Load 3
DC
Relay
Storage
battery
Global Network
North America
Europe
Asia Pacific
China
Japan
Panasonic Electric Works
Please contact our Global Sales Companies in:
Europe
▸ Headquarters
▸ Austria
Panasonic Electric Works Europe AG
Panasonic Electric Works Austria GmbH
▸ Benelux
Panasonic Industrial Devices Materials
Europe GmbH
Panasonic Electric Works
Sales Western Europe B.V.
Panasonic Electric Works Europe AG
▸ Czech Republic
▸ France
▸ Germany
▸ Hungary
Panasonic Electric Works
Sales Western Europe B.V.
Panasonic Electric Works Europe AG
Panasonic Electric Works Europe AG
▸ Ireland
▸ Italy
Panasonic Electric Works UK Ltd.
Panasonic Electric Works Italia srl
▸ Nordic Countries Panasonic Electric Works Europe AG
Panasonic Eco Solutions Nordic AB
Panasonic Electric Works Polska sp. z o.o
▸ Poland
Panasonic Electric Works España S.A.
▸ Portugal
Panasonic Electric Works España S.A.
▸ Spain
Panasonic Electric Works Schweiz AG
▸ Switzerland
▸ United Kingdom Panasonic Electric Works UK Ltd.
Rudolf-Diesel-Ring 2, 83607 Holzkirchen, Tel. +49 (0) 8024 648-0, Fax +49 (0) 8024 648-111, www.panasonic-electric-works.com
Josef Madersperger Str. 2, 2362 Biedermannsdorf, Tel. +43 (0) 2236-26846, Fax +43 (0) 2236-46133
www.panasonic-electric-works.at
Ennshafenstraße 30, 4470 Enns, Tel. +43 (0) 7223 883, Fax +43 (0) 7223 88333, www.panasonic-electronic-materials.com
De Rijn 4, (Postbus 211), 5684 PJ Best, (5680 AE Best), Netherlands, Tel. +31 (0) 499 372727, Fax +31 (0) 499 372185,
www.panasonic-electric-works.nl
Administrative centre PLATINIUM, Veveri 111, 616 00 Brno, Tel. +420 541 217 001, Fax +420 541 217 101,
www.panasonic-electric-works.cz
Succursale française, 10, rue des petits ruisseaux, 91370 Verrières Le Buisson, Tél. +33 (0) 1 6013 5757, Fax +33 (0) 1 6013 5758,
www.panasonic-electric-works.fr
Rudolf-Diesel-Ring 2, 83607 Holzkirchen, Tel. +49 (0) 8024 648-0, Fax +49 (0) 8024 648-111, www.panasonic-electric-works.de
Magyarországi Közvetlen Kereskedelmi Képviselet, 1117 Budapest, Neumann János u. 1., Tel. +36 1 999 89 26
www.panasonic-electric-works.hu
Irish Branch Office, Dublin, Tel. +353 (0) 14600969, Fax +353 (0) 14601131, www.panasonic-electric-works.co.uk
Via del Commercio 3-5 (Z.I. Ferlina), 37012 Bussolengo (VR), Tel. +39 0456752711, Fax +39 0456700444,
www.panasonic-electric-works.it
Filial Nordic, Knarrarnäsgatan 15, 164 40 Kista, Sweden, Tel. +46 859476680, Fax +46 859476690, www.panasonic-electric-works.se
Jungmansgatan 12, 21119 Malmö, Tel. +46 40 697 7000, Fax +46 40 697 7099, www.panasonic-fire-security.com
ul. Wołoska 9A, 02-583 Warszawa, Tel. +48 22 338-11-33, Fax +48 22 338-12-00, www.panasonic-electric-works.pl
Portuguese Branch Office, Avda Adelino Amaro da Costa 728 R/C J, 2750-277 Cascais, Tel. +351 214812520, Fax +351 214812529
Barajas Park, San Severo 20, 28042 Madrid, Tel. +34 913293875, Fax +34 913292976, www.panasonic-electric-works.es
Grundstrasse 8, 6343 Rotkreuz, Tel. +41 (0) 41 7997050, Fax +41 (0) 41 7997055, www.panasonic-electric-works.ch
Sunrise Parkway, Linford Wood, Milton Keynes, MK14 6 LF, Tel. +44 (0) 1908 231555, Fax +44 (0) 1908 231599,
www.panasonic-electric-works.co.uk
North & South America
▸ USA
Panasonic Industrial Devices Sales Company
of America
629 Central Avenue, New Providence, N.J. 07974, Tel. 1-908-464-3550, Fax 1-908-464-8513, www.pewa.panasonic.com
Asia Pacific / China / Japan
▸ China
Panasonic Electric Works Sales (China) Co. Ltd.
▸ Hong Kong
Panasonic Industrial Devices Automation
Controls Sales (Hong Kong) Co., Ltd.
Panasonic Corporation
Panasonic Industrial Devices
Automation Controls Sales Asia Pacific
▸ Japan
▸ Singapore
Level 2, Tower W3, The Towers Oriental Plaza, No. 2, East Chang An Ave., Dong Cheng District, Beijing 100738, Tel. +86-10-5925-5988,
Fax +86-10-5925-5973
RM1205-9, 12/F, Tower 2, The Gateway, 25 Canton Road, Tsimshatsui, Kowloon, Hong Kong, Tel. +852-2956-3118, Fax +852-2956-0398
1048 Kadoma, Kadoma-shi, Osaka 571-8686, Japan, Tel. +81-6-6908-1050, Fax +81-6-6908-5781, www.panasonic.net
300 Beach Road, #16-01 The Concourse, Singapore 199555, Tel. +65-6390-3811, Fax +65-6390-3810
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