Panasonic KW8M - Dedicated Current Transformer Specifications

KW8M Eco-POWER METER
74
9.9 Dedicated Current Transformer Specifications
●Clamp-on type
Model No
AKW4801B
AKW4802B
AKW4803B
AKW4804B
AKW4808C
Primary side rated current
5A / 50A
100A
250A
400A
600A
Secondary side rated
Current
1.67mA /
16.7mA
33.3mA 125mA 200mA
Transform ratio
3000:1
3000:1
2000:1
2000:1
3000:1
Ratio error
±
2.0% F.S.
Hole Dia (mm)
φ
10
φ
16
φ
24
φ
36
Breakdown voltage (initial)
AC1000V/1min
(Between through hole
and output lead wire)
AC2000V/1min
(Between through hole
and output lead wire)
Insulation resistance
(initial)
Min. 100M
Ω
(at DC500V) (Between through hole and output lead wire)
Vibration
resistance
Functional
10 to 55Hz (1 cycle/ minute) single amplitude of 0.15mm
(10 min. on X,Y and Z axes)
Destructive
10 to 55Hz (1 cycle/ minute) single amplitude of 0.375mm
(1 hrs. on X,Y and Z axes)
Shock
resistance
Functional
Min. 98m/s
2
(4 times on X,Y and Z axes)
Destructive
Min. 294m/ s
2
(5 times on X,Y and Z axes)
Output protection level
±7.5V with clamp element ±3.0V with clamp element
Permissible
clamping frequency
Approx. 100 times
Ambient temperature
-10 to +50℃ (without frost and non-condensing)
Storage temperature
-20 to +60℃ (without frost and non-condensing)
Ambient humidity
30 to 85%RH (at 20℃) non-condensing
Weight (with relay cable)
Approx. 60g
Approx. 90g
Approx. 200g
Approx. 295g
Approx. 450g
●Through type
Model No
AKW4506B
AKW4507B
AKW4508B
Primary side rated current
50A / 100A
250A / 400A
600A
Secondary side rated
Current
16.7mA / 33.3mA 125mA / 200mA 200mA
Transform ratio
3000:1
2000:1
3000:1
Ratio error
±
1.0%F.S.
Hole Dia (mm)
φ17 φ36
Breakdown voltage (initial)
AC1000V/1min
(Between through hole and
output lead wire)
AC2000V/1min
(Between through hole
and output lead wire)
Insulation resistance (initial)
Min. 100MΩ (at DC500V) (Between through hole and output lead wire)
Vibration
resistance
Functional
10 to 55Hz (1 cycle/ minute) single amplitude of 0.15mm
(10 min. on X,Y and Z axes)
Destructive
10 to 55Hz (1 cycle/ minute) single amplitude of 0.375mm
(1 hrs. on X,Y and Z axes)
Shock
resistance
Functional
Min. 98m/s
2
(4 times on X,Y and Z axes)
Destructive Min. 294m/ s
2
(5 times on X,Y and Z axes)
Output protection level
±7.5V with clamp element ±3.0V with clamp element
Ambient temperature
-10 to +50℃ (without frost and non-condensing)
Storage temperature
-20 to +60
℃
(without frost and non-condensing)
Ambient humidity
30 to 85%RH (at 20℃) non-condensing
Weight (with relay cable)
Approx. 70g
Approx. 200g
Approx. 215g
Note) Dedicated current transformers (CT) are dedicated for low voltage under 440V. They can not be
used for high voltage circuit. In case measuring high voltage circuit, make a 2-step construction
by combination of a commercial CT of secondary side current 5A for high voltage and the
dedicated CT for 5A.