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【Notification of Manufacturer Change for Panasonic Industrial Devices SUNX Products and Panasonic Industrial Devices SUNX Tatsuno Products】
From April 1, 2024, the terms "Panasonic Industrial Devices SUNX Co., Ltd." and "Panasonic Industrial Devices SUNX Tatsuno Co., Ltd."
in this page and in the manuals and other documents to be downloaded will all be replaced with "Panasonic Industry Co., Ltd." and applied accordingly.

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KW1M Eco-POWER METER

Rating/ Performance

Measurement items

Item Unit Data display range
Instantaneous electric power (Active) kW 0.00 to 9999.99
Integrated electric power (Active) kWh/MWh 0.00 to 9999.99 MWh
0.00 to 9999999.99 kWh (when 9-digit display)
Current R-current A 0.0 to 6000.0
S-current (Note 1) A 0.0 to 6000.0
T-current A 0.0 to 6000.0
Voltage R (RS)-voltage V 0.0 to 9999.9
S (RT)-voltage (Note 1) V 0.0 to 9999.9
T (TS)-voltage V 0.0 to 9999.9
Electricity charge (Note 2) - 0.00 to 999999
Conversion carbon dioxide value kg-CO2 0.00 to 999999
Power factor (Note 1) - 0.00 to 1.00
[Identify leading phase (–) or lagging phase]
(Only in range of phase angle θ = –90° to +90°)
Frequency (Note 1) - 47.5 to 63.0 Hz
Hour meter ON-time h (Hour) 0.0 to 99999.9
OFF-time h (Hour) 0.0 to 99999.9
Pulse counter (Note 1) - 0 to 999999

Note: 1) Excluding AKW1110(B).
Note: 2) Eco-POWER METER is designed chiefly to manage saving energy. It is neither intended nor can it be legally used for billing.

General specifications

Item AKW1111(B) AKW1110(B)
Rated operating voltage 100 to 240V AC
Rated frequency 50 / 60 Hz common
Rated power
consumption
6 VA (AKW1110(B)), 8 VA (AKW1111(B)) (240 V AC at +25 ℃ +77 )
Allowable operating voltage range 85 to 264 V AC (85 % to 110 % of rated operating voltage)
Allowable momentary power-off time 10 ms
Ambient temperature -10 to +50 ℃ +14 to +122
(-25 to +70 ℃ -13 to +158 at storage)
Ambient humidity 30 to 85 % RH (at +20 ℃ +68 non-condensing)
Breakdown voltage(initial) Between the isolated circuits:2000V for 1min A)Outer edge (case)-All terminals
B)Between Insulated circuit
・Operating power supply terminals-
Analog input terminals
・RS485-All other terminals
・Pulse output terminals-All other terminals
Insulation resistance(initial) Between the isolated circuits:
100MΩor more(measured at 500V DC)
Vibration resistance 10 to 55Hz (1cycle/min) single amplitude : 0.375mm(1h on 3 axes)
Shock resistance Min. 294m/s2 (5 times on 3 axes)
Display method LCD with backlight
Upper: green, 4-digit, 16-segment
Lower: amber, 6-digit, 7-segment
Power failure
memory method
EEPROM (more than 100,000 overwrite)
Weight 170 g approx.

Electric power input specifications

Item Specifications
AKW1111(B) AKW1110(B)
Phase and wire system Single-phase two-wire system
Single-phase three-wire system
Three-phase three-wire system
Three-phase four-wire system
(common)
Single-phase two-wire system
Single-phase three-wire system
Three-phase three-wire system
(common)
Input
voltage
Rating 1P2W : 0-440V AC (Line voltage)
1P3W : 0-220V AC (Phase voltage)
3P3W : 0-440V AC (Line voltage)
3P4W : 0-254V AC (Phase voltage)
1P2W : 0-220V AC (Line voltage)
1P3W : 0-110V AC (Phase voltage)
3P3W : 0-220V AC (Line voltage)
Allowable
measurement
voltage
Up to 120% of rated input voltage
1P2W : 0-528V AC (Line voltage)
1P3W : 0-264V AC (Phase voltage)
3P3W : 0-528V AC (Line voltage)
3P4W : 0-300V AC (Phase voltage)
1P2W : 0-264V AC (Line voltage)
1P3W : 0-132V AC (Phase voltage)
3P3W : 0-264V AC (Line voltage)
VT ratio 1.00 to 99.99 (Set with setting mode)
*Voltage transformer (VT) is required when you measure a load with voltage over the allowable measurement voltage.
*Secondary current rating of commercial VT is 110V.
Input current Primary side
rating
<Using the dedicated CT>
・5A/50A/100A/250A/400A/600A (Select with setting mode)
<Using a commercial CT with the secondary side current 5A>
・1 to 4000A (Set with setting mode)
*Use a CT with secondary side current of 5A when measure 600A or more.
Special
functions
Cut-off current 1.0 to 50.0%F.S (Set with setting mode)
Cut-off voltage Below 5% of rating voltage
(Rating voltage x 0.05 x VT ratio) (Fixed)
Current threshold for
hour meter
1.0 to 100.0%F.S.
Accuracy
(without error in CT and VT)
Indication accuracy Instantaneous electric power,
Integrated electric power,
Conversion electricity charge value,
Conversion carbon dioxide value
Within ± (2.0 % F.S. + 1 digit) (at +20 ℃ +68 , rated input, rated frequency, power factor 1) (Note)
Current Within ± (1.0 % F.S. + 1 digit) (at +20 ℃ +68 rated input, rated frequency, power factor 1) (Note)
Voltage Within ± (1.0 % F.S. + 1 digit) (at +20 ℃ +68 rated input, rated frequency, power factor 1)
Hour meter Within ± (0.01 % +1 digit) (at +20 ℃ +68 ) (In case power on start or current energizing: ± 0.01 % + 1 sec + 1 digit)
Temperature
characteristics
Within ± (1.0 % F.S. / +10 ℃ +50 + 1 digit) (Range of -10 to +50 ℃ +14 to +122 , rated input, power factor 1)
In case of 5 A CT mode, within ± (1.5 % F.S. + 1 digit) under the same condition
Frequency
characteristics
Within ± (1.0 % F.S. + 1 digit) (Frequency change ± 5 % based on rated frequency, rated input, power factor 1)
In case of 5 A CT mode, within ± (1.5 % F.S. + 1 digit) under the same condition

Note: Accuracy coverage: 5 to 100 % of rated current
In case of 5 A CT mode, within ± (2.5 % F.S. + 1 digit) under the same condition

Pulse input specifications [for AKW1111(B)]

Item Specifications
Input mode Addition (Fixed)
Max. counting speed 2 kHz / 30 Hz (Select with setting mode)
Pulse input
(Min. input signal width)
0.25 ms (When 2 kHz selected) / 16.7 ms (When 30 Hz selected), ON : OFF ratio = 1 : 1
Input signal
(at +20 ℃ +68 )
Contact / No contact (open collector)
- Impedance when shorted: Max. 1 kΩ
- Residual voltage when shorted: Max. 2 V
- Impedance when open: Min. 100 kΩ
Mode HOLD (Over count)
Prescale Decimal point Setting possible up to under 3-digit
Range 0.001 to 100.000 (Set with setting mode)

Specifications of the pulse output (transistor output) of integrated electric active power

Item Specifications
AKW1111(B) AKW1110(B)
Number of output point 1 point
Insulation method Optical coupler
Output type Open collector
Output capacity 100mA 30V DC
Pulse width approx. 100ms
ON state voltage drop 1.5V or less
OFF state leakage current 100μA or less
Pulse output unit 0.001/0.01/0.1/1/10/100kWh/
Alarm(AL-P)/ Current alarm(AL-C)/
Stand-by alarm (AL-S) /
Counter output (Cnt)
(Selectable with setting mode)
0.001/0.01/0.1/1/10/100kWh/
Alarm(AL-P)/ Current alarm(AL-C)
(Selectable with setting mode)

* We recommend the setting of minimum unit for pulse output for measurement shown as below.
Output pulse: 4 pulse or less per 1sec.
-How to calculate-
(Unit for pulse output: PL-P) > (Max. measurement power [kW])/(3600[s]×4 [pulse/s])

Note :1) Improper unit setting may cause miss counting.
Note :2) If the OFF time is too short, there is a possibility of counting errors.

Communication specifications

Item Specifications
RS485 communication
Protocol MEWTOCOL and Modbus RTU
(selectable with setting mode)
Isolation status Isolated with the internal circuit
Number of connected units Max. 99 units (Note 1) (Note 2)
Transmission distance /
Transmission speed
1,200 m 3,937 ft (Note 3) / 2,400 / 4,800 / 9,600 / 19,200 / 38,400 bps (selectable with setting mode)
Transmission format Data length: 8-bit / 7-bit (selectable with setting mode) (Note 4),
Parity: Not available / Odd number / Even number (selectable with setting mode),
Stop bit: 1 bit (fixed)
Communication method /
Synchronous system
Half-duplex / Synchronous communication method
Ending resistance 120 Ω approx. (built-in)

Notes:

1) For RS-485 converter on the computer side, we recommend SI-35 and SI-35USB (from LINE EYE Co., Ltd.).
2) When using SI-35,SI-35USB or our PLC (which can be connected up to 99 units), up to 99 Eco-POWER METER can be connected. (However, 32 units max. using connection with C-NET adapter)
In case using this system with the other devices, up to 31 Eco-POWER METER can be connected.
3) Please check with the actual devices when some commercial devices with RS-485 interface are connected.
The number of connected devices, transmission distance, transmission speed may be different according to using devices or transmission line.
4) With Modbus RTU protocol for RS-485 communication, it works only with data length 8-bit.

* Modbus Protocol is a communications protocol developed for PLCs by Modicon Inc.

DEDICATED CURRENT TRANSFORMER (CT)

Specifications

Item Clamp-on typ
AKW4801B
AKW4801C
AKW4802B
AKW4802C
AKW4803B
AKW4803C
AKW4804B
AKW4804C
AKW4808B
AKW4808C
CE marking directive compliance Low Voltage Directive, RoHS Directive
Primary side rated current 5A/50A 100A 250A 400A 600A
Secondary side rated current 1.67mA/16.7mA 33.3mA 125mA 200mA 200mA
Winding (Turn) 3000 3000 2000 2000 3000
Ratio error ±2.0%F.S.
Through hole ø10 ø0.39 ø16 ø0.63 ø24 ø0.94 ø36 ø1.42 ø36 ø1.42
Breakdown voltage (initial) 1000V AC/1min
(Between through hole and output lead wire)
2000V AC/1min
(Between through hole and output lead wire)
Insulation resistance (initial) Min. 100 M Ω (at 500 V DC) (Between through hole and output lead wire)
Functional vibration resistance 10 to 55 Hz (1 cycle / min), single amplitude: 0.15 mm 0.01 in (10 min on 3 axes)
Vibration resistance 10 to 55 Hz (1 cycle / min), single amplitude: 0.375 mm 0.01 in (1 hour on 3 axes)
Functional shock resistance Min. 98m/s2(4 times on 3 axes)
Shock resistance Min. 294m/s2(5 times on 3 axes)
Output protection level ±7.5 V with clamp element ±3.0V with clamp element
Permissible clamping frequency 100 times approx.
Ambient temperature range -10 to +50℃ +14 to +122 ℉ (without frost and non-condensing)
Storage temperature -20 to +60℃ -4 to +140 ℉ (without frost and non-condensing)
Ambient humidity 35 to 85%RH(at +20℃ +68 ℉ non-condensing)
Dimensions (mm in)
(W x H x D)
23 x 40 x 26.5
0.08 x 0.13 x 0.09
30 x46.5 x 32
0.10 x 0.15 x 0.11
45 x65 x 34
0.15 x 0.21 x 0.11
57 x81 x 38
0.19 x 0.27 x 0.12
62.6 x93.3 x 40
0.21 x 0.31 x 0.13
Weight
(Relay cable included)
60 g approx. 90 g approx. 200 g approx. 295 g approx. 450 g approx.
Item Through type
AKW4506B
AKW4506C
AKW4507B
AKW4507C
AKW4508B
AKW4508C
CE marking directive compliance Low Voltage Directive, RoHS Directive
Primary side rated current 50A/100A 250A/400A 600A
Secondary side rated current 16.7mA/33.3mA 125mA/200mA 200mA
Winding (Turn) 3000 2000 3000
Ratio error ±1.0%F.S.
Through hole ø17mm ø0.67 in ø36mm ø1.42 in
Breakdown voltage (initial) 1000V AC/1min
(Between through hole and output lead wire))
2000V AC/1min
(Between through hole and output lead wire)
Insulation resistance (initial) Min. 100 MΩ (at 500 V DC megger) (Between through hole and output lead wire)
Functional vibration resistance 10 to 55 Hz (1 cycle / min), single amplitude: 0.15 mm 0.01 in (10 min on 3 axes)
Vibration resistance 10 to 55 Hz (1 cycle / min), single amplitude: 0.375 mm 0.01 in (1 hour on 3 axes)
Functional shock resistance Min. 98 m/s2 (4 times on 3 axes)
Shock resistance Min. 294 m/s2 (5 times on 3 axes)
Output protection level ±7.5 V with clamp element ±3.0 V with clamp element
Permissible clamping frequency -
Ambient temperature range –10 to +50 ℃ +14 to +122 ℉ (without frost and non-condensing)
Storage temperature –20 to +60 ℃ –4 to +140 ℉ (without frost and non-condensing)
Ambient humidity 35 to 80 % RH (at +20 ℃ +68 ℉non-condensing)
Dimensions (mm in)
(W x H x D)
ø42 x 15
1.65 x 0.05
ø70 x19
2.76 x 0.06
ø70 x19
2.76 x 0.06
Weight
(Relay cable included)
70 g approx. 200 g approx. 215 g approx.

Notes :

1) Dedicated CT are dedicated for low voltage under 440 V AC system. They can not be used for high voltage circuit.
2) In each type of Eco-POWER METER excluding AKW8115, KW9M and KW2M, a combination of commercially secondary side 5 A CTs and dedicated CTs for 5 A is used for measuring high voltage circuits; For details, confirm with each respective user's manual.
3) Since dedicated CTs cannot be used when measuring with AKW8115, KW9M and KW2M, please be careful and do not purchase a dedicated CT by mistake.
4) For the AKW8115, KW9M and KW2M, CT with a secondary side current 1 A or 5 A is recommended. Please confirm the specification beforehand.
5) Dedicated CT are not included with Eco-POWER METERs.
6) Each dedicated CT includes a 1 m 3.281 ft relay cable, respectively.

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