102
8.
Appendices
8.1 Specifications (continued)
■
Measurement input specifications
* You cannot use the CT dedicated for use with the Omron KM series (model series KM20-CTF, model series KM-
NCT). Use a CT with a rated load of 1.0 VA or more.
■
Output specifications
■
Option Products (Order Separately)
* The waterproof packing is provided with the KM-N3.
* The mounting adapters are provided with the KM-N3.
Item
Description
Applicable circuit type
3-phase 4-wire, 1-phase 2-wire, 1-phase 3-wire, 3-phase 3-wire
Number of measuring
circuits
3-phase 4-wire
:Maximum 1 circuit
1-phase 2-wire
:Maximum 4 circuits
1-phase 3-wire,
3-phase 3-wire
:Maximum 2 circuits
Rated input voltage
3-phase 4-wire
:100 to 277 VAC, 173 to 480 VAC (L-L)
1-phase 2-wire
:100 to 277 VAC
1-phase 3-wire
:100 to 240 VAC (L-N), 200 to 480 VAC (L-L)
3-phase 3-wire
:173 to 480 VAC (L-L)
Variation range of input
voltage
85 to 110% of rated input voltage
Connectable CTs
Generic CT (Secondary rated current: 1A or 5A)*
Rated current for CT
secondary side
1A
Maximum current for CT
secondary side
6A
Item
Description
Pulse output
(Active energy)
Number of output points
: 4 (PhotoMOS relay outputs)
Output capacity
: DC40V, 50mA or less
Residual voltage when ON
: Less than 1.5V (when output current is 50mA)
Current leakage when OFF
: 0.1mA maximum
Output units
: 1,10,100,1k,5k,10k,50k,100k (Wh)
Pulse ON time
: 500ms fixed
RS-485
Protocol
: Modbus(RTU), CompoWay/F
Sync method
: Asynchronous
Communication speed
: 38400, 19200, 9600, 4800, 2400, 1200bps
Maximum transmission
distance
: 1200m
Maximum number of devices
connected
: 99 (Modbus), 31 (CompoWay/F)
Product Name
Model
Description
Terminal covers
E53-COV24
Cover for screw terminal block (3 covers provided)
Waterproof packing
Y92S-P10
Waterproof packing
Mounting adaptors
Y92F-51
Adapter to fix the main unit to the panel (2 covers provided)