1
Chapter 1 Unit’s Features and Structure
1-1 Features
■
KW4M Eco-POWER METER is a wattmeter in DIN48 size. Electrical energy (voltage, current, etc.) is
measured using AC voltage and AC current input via one of the following systems: single-phase
two-wire system, single-phase three-wire system, or three-phase three-wire system.
This also works as an hour meter, that is measured power-on or power-off time, and as a counter that
is for pulse output equipment like flowmeter.
■
Eco-POWER METER is designed chiefly to manage saving energy. It is neither intended nor
can it be legally used for billing.
1-2 Unit’s Name and Part Numbers
1-2-1 Main unit
Phase and
Wire system
Power
Supply
Measured
voltage input
Measured
current
input
Current
transformer
Terminal
type
Protocol Model
No
MEWTOCOL AKW5111
Screw
terminal
MODBUS
(RTU)
AKW5112
MEWTOCOL AKW5211
・
Single-phase
two-wire
・
Single-phase
three-wire
・
Three-phase
three-wire
100-240V
AC
・
100-120
/200-240V AC
・
100-120V AC
・
200-240V AC
5A
50A
100A
250A
400A
Dedicated CT
type
(5A/50A/100A/
250A/400A)
11-pin
MODBUS
(RTU)
AKW5212
1-2-2 Dedicated Current Transformer (CT)
Rated primary current
Model No
5A
50A
AKW4801
100A AKW4802
250A AKW4803
400A AKW4804
1-2-3 Options
Product name
Contents
Model No
Mounting frame
Used for mounting in a panel (supplied with a unit)
AT8-DA4
Rubber gasket
Used for mounting in a panel (supplied with a unit)
ATC18002
Protective cover
Used for protecting a front display
(common to Timer/Counter)
AQM4803
DIN rail socket
For 11-pin type(surface mounting)
ATC180041
Rear terminal socket
For 11-pin type (embedded mounting)
AT78051
11P cap
For 11-pin type (connectable directly with soldering)
AT8-DP11
Mounting rail
DIN rail terminal socket fixing rail
AT8-DLA1
Installation frame
Used for mounting
AKW4822
Terminal
Protective cover
Used to cover a terminal block
(only for screw terminal type)
AKW4823
Содержание KW4M
Страница 1: ......
Страница 44: ...38 9 2 Dedicated CT Unit mm Clearance 1 0 For 5A 50A AKW4801 For 100A AKW4802 Attached trunk cable L 1000 ...
Страница 45: ...39 For 250A AKW4803 For 400A AKW4804 ...
Страница 47: ......