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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.
KW7M Eco-POWER METER (Discontinued Products)
We are sorry, the products have been discontinued. Please refer to the details of the discontinued products and the recommended substitutes list below.
![Last time buy](/ac/e/common/images/competioninfocol/labels/1.gif) |
September 29, 2023 |
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Dimensions
KW7M
Dedicated current transformers CT
Dedicated current transformer (CT) Clamp-on type 5A/50A (AKW4801B)
Dedicated current transformer (CT) Clamp-on type 100A (AKW4802B)
Dedicated current transformer (CT) Clamp-on type 250A (AKW4803B)
Dedicated current transformer (CT) Clamp-on type 400A (AKW4804B)
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Dedicated current transformer (CT) Through type 50A/100A (AKW4506B)
Dedicated current transformer (CT) Through type 250A/400A (AKW4507B)
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Main unit terminal arrangement
Be sure to wire correctly according to the terminal arrangement and wiring diagrams.
Terminal layout
No. |
Function |
Terminal type |
1 |
1, R, R |
Phoenix terminal M3 screw with slotted head |
2 |
2, N, S |
3 |
3, T, T |
4 |
Unused terminal (N.C.) |
5 |
Pulse output(+) |
Phoenix terminal M2 screw with slotted head |
6 |
Pulse output(-) |
7 |
RS-485(+) |
8 |
RS-485(-) |
9 |
RS-485(E) |
(Note): |
RS-485 (E) terminal is not an SG (signal ground) terminal. Do not connect it to the grounding wire of a shielded cable. |
Caution for Wiring
1) |
Terminal fastening torque should be 0.5 to 0.6 N・m for No.1 to No.4 (M3 screw) and 0.22 to 0.25 N・m for No.5 to No.9 (M2 screw). |
2) |
Use wire with its cross section of 0.14~1.5mm2(AWG#26~14) for voltage input terminal (No.1, 2, 3),
use wire with its cross section of 0.14~1.0mm2(AWG#26~16) for pulse output terminal (No.5, 6), use
wire with its cross section of 0.3~1.0mm2(AWG#22~16) for communication terminal (No.7, 8, 9).
When connecting 2 or more wires to communication terminal, use same wire with its cross section of
0.3 to 0.34mm2. |
3) |
This has no built-in power switch, circuit breaker or fuse. Therefore it is necessary to install them in the circuit near this unit. |
4) |
We recommend the below ferrules (terminals) for wiring.
(We don’t recommend them when 2 or more wires are connected.) |
Terminal No. |
Product number for Ferrule (PHOENIX CONTACT) |
No.1 to No.4 (M3 screw) |
AI 0.25-8YE AI 0.34-8TQ AI 0.5-8WH
AI 0.75-8GY AI 1.0-8RD AI 1.5-8BK |
No.5 to No.9 (M2 screw)
(When 1 wire is connected.) |
AI 0.25-8YE AI 0.34-8TQ AI 0.5-8WH |
5) |
Use flame-resistant cable for each wiring. |
Wiring Diagrams
Please connect a breaker (3 to 15A) to the voltage input part for safety reasons and to protect the device. Grounding the secondary side of VT (Voltage transformer) and CT (Current transformer) is not necessary with low-voltage circuit.
When measuring a load with rated input voltage
1.Single-phase two-wire system
*One CT is required to measure. |
![](/ac/e/fasys/eco/eco/kw7m/size_figure/images/pic03.gif) |
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2.Single-phase, three-wire/ Three-phase, three-wire system
*Two CTs are required to measure. |
![](/ac/e/fasys/eco/eco/kw7m/size_figure/images/pic04.gif) |
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When measuring a load with exceed input voltage
Voltage transformer (VT) is needed when you measure a load with over rated input voltage (240V).Use VT, those secondary rating is 110V.
Grounding the secondary side of VT and CT is not necessary with low-voltage circuit.
![](/ac/e/fasys/eco/eco/kw7m/size_figure/images/pic05.gif) |
* After wiring, turn on the power supply and turn off and power on again. |
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Discontinued products [Order accepted till December, 2016]
AKW7111 |
![AKW7111](/ac/e/fasys/eco/eco/kw7m/size_figure/images/pic06.gif) |
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Dedicated current transformer (CT) Clamp-on type 5A/50A (AKW4801C)
Dedicated current transformer (CT) Clamp-on type 100A (AKW4802C)
Dedicated current transformer (CT) Clamp-on type 250A (AKW4803C)
Dedicated current transformer (CT) Clamp-on type 400A (AKW4804C)
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Dedicated current transformer (CT) Through type 50A/100A (AKW4506C)
Dedicated current transformer (CT) Through type 250A/400A (AKW4507C)
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