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KE1

Smart Measurement and Monitor Units

KE1

First in the Industry! Unit structure that enables Power and Earth Leakage Monitoring with just one Unit. Use just one Unit to implement multi-circuit measurements.

about this Product Family

Main Units

Model Unit type Unit category Power supply
voltage
Commu-
nications
KE1-PGR1C-FLK Power/Earth Leakage Monitor Unit Measurement
Master
100 to 240 VAC RS-485
KE1-PVS1C-FLK Power/Momentary Voltage Sag Monitor Unit
KE1-VSU1B-FLK Momentary Voltage Sag Monitor Unit Function Slave
KE1-VAU1B-FLK Voltage/Current Monitor Unit
KE1-CTD8E CT Expansion Unit CT Expansion
Slave
Not required.* ---
KE1-ZCT8E ZCT Expansion Unit
KE1-DRT-FLK DeviceNet Communications Unit Communications
Slave
100 to 240 VAC RS-485
DeviceNet

* The CT and ZCT Expansion Units cannot be used in standalone operation. They must be used together with a
    Measurement Master Unit.
   Power is supplied to the CT and ZCT Expansion Units from the Measurement Master Unit. Power supply wiring is not
   required.

Options (Order Separately)

CT Input

Current Transformers (CTs)

Model Rated primary current Rated secondary current Installation
KM20-CTF-5A 5 A Special output Split-type
KM20-CTF-50A 50 A
KM20-CTF-100A 100 A
KM20-CTF-200A 200 A
KM20-CTF-400A 400 A
KM20-CTF-600A 600 A
M20-CTB-5A/50A 5 A/50 A In-panel mounting
(through-hole)

Note: CT Cables are not included with the CTs.

Current Transformers (CTs) (UL-compliant)

Model Rated primary current Rated secondary current Installation
KM20-CTF-5AU 5 A Special output Split-type
KM20-CTF-50AU 50 A
KM20-CTF-100AU 100 A
KM20-CTF-200AU 200 A
KM20-CTF-400AU 400 A
KM20-CTF-600AU 600 A

Note: CT Cables are not included with the CTs.

Current Transformer (CT) Cable

Model Specification
KM20-CTF-CB3 3-m cable

Note: Use only the CT Cable specified by OMRON.

ZCT Input

Zero-phase Current Transformers (Compatible ZCTs)

Struc-
ture
Indoor, through-hole Indoor, split-type Outdoor, through-hole Outdoor, split-type
Rated
current
Through-
hole
diameter
(mm)
Model Through-
hole
diameter
(mm)
Model Through-
hole
diameter
(mm)
Model Through-
hole
diameter
(mm)
Model
50 A 21 OTG-L21 --- --- --- --- --- ---
100 A 30 OTG-L30 --- --- 30 OTG-LA30W --- ---
150 A --- --- --- --- --- --- 36 TG-CN36W
200 A 42 OTG-L42 52 OTG-CN52 --- --- --- ---
400 A 68 OTG-L68 77 OTG-CN77 --- --- --- ---
600 A 82 OTG-L82 112 OTG-CN112 --- --- --- ---
1,000 A 156 TG-L156 --- --- --- --- --- ---

Current Transformer for Ground Wires

Structure Indoor, split-type
Rated current Through-hole diameter (mm) Model
2 A 22 K6ER-CN22

Related Devices (Sold Separately)

When Connected to a Computer
Communications Interface Converters

Model Size (mm) Communications conversion Power supply voltage
K3SC-10 AC100-240 30 × 80 × 78
(W × H × D)
RS-232C, USB <-> Half-duplex RS-485 100 to 240 VAC
K3SC-10 AC/DC24 24 VAC/DC

DIN Track

Model
PFP-100N
PFP-50N

Clamp (End Plate)

Model
PFP-M