KW1M Eco-POWER METER

• 1.KW1M
• 2.Dedicated current transformer (CT)
• 3.Terminal arrangement・Wiring diagrams (KW1M)
• 4.Discontinued products [Order accepted till December, 2016]
• KW1M
• Dedicated current transformers (CT)
• Terminal arrangement・Wiring diagrams (KW1M) (same as "3.Terminal arrangement・Wiring diagrams (KW1M)")

AKW1111B Main unit

AKW1110B Main unit

Mounting hole dimensions

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)

Dedicated current transformer (CT) Clamp-on type 600A (AKW4808B)

Return to top

Dedicated current transformer (CT) Through type 50A/100A (AKW4506B)

Dedicated current transformer (CT) Through type 250A/400A/600A (AKW4507B/AKW4508B)

Return to top

Be sure to wire correctly according to the terminal arrangement and wiring diagrams.
After completing wiring, be sure to attach the terminal cover for safety reasons.

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 (100-200V system/ 400V system)

Single-phase two-wire system *One current transformer (CT) is required. Do not wire (5) (6)terminals. They are connected internal.

Single-phase three-wire / Three-phase three-wire system * Two current transformers are required. Do not wire (6) terminals. They are connected internal.

Three-phase four-wire system * Three current transformers 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	Single-phase, three-wire system Three-phase, three-wire system	Three-phase, four-wire system

Be sure to wire correctly according to the terminal arrangement and wiring diagrams.
After completing wiring, be sure to attach the terminal cover for safety reasons.

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 (100-200V system)

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

Single-phase three-wire / Three-phase three-wire system *Two current transformers 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

Single-phase, three-wire system Three-phase, three-wire system

• 1.Terminal fastening torque should be 0.5 to 0.6N･m for M3 screw and should be 1.0N･m for M3.5 screw. In case of using a crimping terminal, use it with insulating sleeve applicable to M3 screw or 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.Use flame-resistant cable for each wiring.

AKW1111

AKW1110

Mounting hole dimensions

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)

Return to top

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

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