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Discontinued
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KW7M Eco-POWER METER (Discontinued Products)

Dimensions

  • Unit: mm in


KW7M

AKW7111B

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.

2.Single-phase, three-wire/ Three-phase, three-wire system
*Two CTs are required to measure.

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.

* After wiring, turn on the power supply and turn off and power on again.

Discontinued products [Order accepted till December, 2016]

AKW7111

AKW7111

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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CONTACT US
If you have any questions, please select the option below to contact us or find answers.
CONTACT BY EMAIL / PHONE FIND LOCAL OFFICE

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