Dedicated Ct And Zct; Specification - Omron KE1 User Manual

Dedicated CT and ZCT

■ Specification

【CT】
Model
Model
Item
KM20-CTF-5A
Primary standard
5 A
current
Secondary standard
1.67 mA
current
Secondary coil
Applicable frequency
Insulation resistance
Voltage withstood
Protection element
Permissible number of
insertion/removal times
Inner diameter
Working temperature/
humidity range
Storage temperature/
humidity range
Model
Item
Primary standard
current
Secondary standard
current
Secondary coil
Applicable frequency
Insulation resistance
Between output terminal and case : 50 MΩ or higher (500 VDC mega)
Voltage withstood
Protection element
Inner diameter
Working
temperature/
humidity range
Storage temperature/
humidity range
Model
Item
Primary standard
current
Insulation resistance
Voltage withstood
Inner diameter
Working
temperature/
humidity range
Storage
temperature/
humidity range
*1. Use the dedicated CT at a low voltage of 600 V or less.
*2. When clamping at a conductive object, such as bus bar, ensure the basic insulation at least
by covering it with an insulator, etc.
Model Model
KM20-CTF-50A KM20-CTF-100A
50 A 100 A
16.7 mA 33.3 mA
3,000 turns
Between output terminal and case : 50 MΩ or higher (500 VDC mega)
Between output terminal and case : 2000 VAC 1 min
10 dia. 16 dia.
-20 to + 60°C with 85% or less (without condensation)
-30 to + 65°C with 85% or less (without condensation)
Panel fixed (through) type
Model KM20-CTB-5A/50A
5 A/50 A
1.67 mA/16.7 mA
3,000 turns
10 Hz to 5 kHz
Between output terminal and case : 2000 VAC 1 min
7.5 V clamp element
10
dia.
-20 to + 60°C with 85% or less (without condensation)
-30 to + 65°C with 85% or less (without condensation)
Split core type for earth wire only
Model K6ER-CN22
2 A
Between core output lead wires: 100 MΩ or more
Between core output lead wires: 1000 VAC 50/60 Hz 1 min.
22
dia.
-10 to + 60°C with 25 to 85% (without condensation)
-20 to + 70°C with 25 to 85% (without condensation)
Split type
Model
KM20-CTF-200A KM20-CTF-400A
200 A
66.7 mA 66.7 mA
6,000 turns
10 Hz~5 kHz
7.5 V clamp element
100 times
24 dia.

Dedicated CT and ZCT

Model Model
KM20-CTF-600A
400 A 600 A
66.7 mA
9,000 turns
37 dia.
A-7