KW1M-H Eco-POWER METER
71
Chapter 8 Specifications
8.1 Main unit
Rated operating voltage
100-240V AC
Rated frequency
50/60Hz common
Rated power consumption
8VA (240VAC at 25
℃
)
Inrush current
Max. 30A (240VAC at 25
℃
)
Allowable operating
voltage range
85 to 264V AC (85 to 110% of rated operating voltage)
Allowable momentary
power-off time
10ms
Ambient temperature
-10 to +50
℃
(-25 to +70
℃
at storage)
Ambient humidity
30 to 85%RH (at 20
℃
non-condensing)
Breakdown voltage(initial)
Between the isolated circuits:
2000V for 1min
A)Outer edge (enclosure)
-
All terminals
B)Between Insulated circuit
・
Operating power supply terminals
-
Analog input terminals
・
Operating power supply terminals
-
Pulse input terminal
・
RS485
-
All other terminals
・
Pulse output terminals
-
All other terminals
Insulation resistance(initial)
Between the isolated circuits:
100M
Ω
or more
(measured at 500V DC)
Vibration resistance
10 to 55Hz (1cycle/min) single amplitude : 0.375mm(1h on 3 axes)
Shock resistance
Min. 294m/s
2
(5 times on 3 axes)
Display method
LCD
with backlight
Upper: Green
Lower: Amber
4-digit, 16-segment, letters H: 6.5mm
6-digit, 7-segment, letters H: 7.5mm
Power failure
memory method
EEPROM (more than 100,000 overwrite)
Memory items:
Setting value
Measuring value
Size
75 x 90 x 50 mm
Weight
approx.180g (without battery)
note1) Analog input terminals: No.4, No.5 and No. 6
8.2 Input Specifications
8.2.1 Electric power input
Phase and wire system
Single-phase two-wire system
Single-phase three-wire system
Three-phase three-wire system
Three-phase four-wire system
(common)
Input
voltage
Rating
Single-phase two-wire : 0-440V AC (Line voltage)
Single-phase three-wire : 0-220V AC (Phase voltage)
Three-phase three-wire : 0-440V AC (Line voltage)
Three-phase four-wire : 0-254V AC (Phase voltage)
Allowable measurement
voltage
Up to 120% of rated input voltage
Single-phase two-wire : 0-528V AC (Line voltage)
Single-phase three-wire : 0-264V AC (Phase voltage)
Three-phase three-wire : 0-528V AC (Line voltage)
Three-phase four-wire : 0-300V AC (Phase voltage)
VT ratio
1.00 to 99.99 (Set with setting mode)
*Voltage transformer (VT) is required when you measure a load
with voltage over 440VAC (Allowable measurement voltage).
*Secondary voltage rating of VT is 110V.
Input
current
Primary side rating
<Using the dedicated CT>
・
5A/50A/100A/250A/400A/600A (Select with setting mode)
<Using a CT with the secondary side current 5A>
・
1 to 4000A (Set with setting mode)
*Use a CT with secondary side current of 5A when measure 600A
or more.