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KW1M-R Eco-POWER METER

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Discontinued

	March 31, 2013

Dimensions

Dimensions

Unit: mm in

KW1M-R（AKW1000/AKW1131）

Mounting hole dimensions

Dedicated current transformers (CT)

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)

Dedicated current transformer (CT) Clamp-on type 600A (AKW4808C)

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Dedicated current transformer (CT) Through type 50A/100A (AKW4506C)

Dedicated current transformer (CT) Through type 250A/400A/600A (AKW4507C/AKW4508C)

Terminal arrangement

(Master unit) AKW1000

Caution for Wiring

<M3.5 Screws>

1.Terminal fastening torque should be about 1.0 N･m. In case of using a crimping terminal, use it with insulating sleeve applicable to M3.5 screw.
2.This has no built-in power switch, circuit breaker for power supply part. To protect the device, it is necessary to install power switch and circuit breaker in the power supply circuit.
And this has no built-in power switch, circuit breaker or fuse for measured voltage input parts.
Therefore it is necessary to install them in the circuit near this unit.
3.We recommend a wire with the cross section of 0.75 to 1.25mm² for power supply line and measured voltage input line.

4.Shape of the terminal cover

<M3 Screws>

1.Terminal fastening torque should be about 0.5 to 0.6 N･m. In case of using a crimping terminal, use it with insulating sleeve applicable to M3 screw.

2.Shape of the terminal cover

Wiring diagrams

AKW1131

When measuring load with rated input voltage (100 to 200 V AC system and 400 V AC system)

Single-phase two-wire system
*One dedicated current transformers (CT) is required.

Single-phase three-wire system / Three-phase three-wire system
* Two dedicated current transformers (CT) are required.

Notes: 1) Do not wire to (5), (6) terminal. They are connected internal.
Notes:2) Do not wire to (6) terminal. They are connected internal.

Three-phase four-wire system
* Three dedicated current transformers (CT) are required.

When measuring a load with exceed input voltage

Voltage transformer (VT) is needed when you measure a load with over rated input voltage (440V).
Use VT, those secondary rating is 110V.
Grounding the secondary side of VT and CT is not necessary with low-voltage circuit.

Single-phase two-wire system