K2CU-F20A-C AC8-20A AC100 Omron, K2CU-F20A-C AC8-20A AC100 Datasheet - Page 7

• Manufacturer Part Number: K2CU-F20A-C AC8-20A AC100
• Description: HEATER FAULT DETECTOR
• Manufacturer: Omron
• Series: K2CUr

Specifications of K2CU-F20A-C AC8-20A AC100

• Current Rating: 8.0 ~ 20 A
• Mounting Type: Panel
• Operational Type: Large, Built in Transformer
• Voltage - Supply: 100 VAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Gate Input: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: K2CU-F20A-CAC8-20AAC100; K2CUF20ACAC820AAC100

K2CU
In a Three-phase, V Network 1
Set the operating current to be 0.3 to 0.35 times the heater current.
Close the SW
indicator remains off.
Turn off SW1 and confirm that the alarm indicator comes on, and
that the output relay operates.
K2CU-F, K2CU-P
The operation of the heater burnout detector can be easily checked
as follows:
In a Single-phase Circuit
Set the operating current to be 0.55 to 0.6 times the heater current.
2
with switch SW
G+
G–
S1
S2
S1
S2
SW
Heater
1
SSR
SW
1
turned on. Confirm that the alarm
1
Heater
K2CU-F
Contactor
K2CU-F
SW
2
In a Three-phase, V Network 2
Set the operating current to be 0.6 times the heater current (of the
phase connected between terminals 1 and 2, or the one passed
through the window of the window-type Current Transformer of the
heater burnout detector).
Close the SW
indicator remains off.
Turn off SW1 and confirm that the alarm indicator comes on, and
that the output relay operates.
Close the contactor with switch SW
alarm indicator remains off.
Turn off SW
the output relay operates.
SW
SW
1
1
1
Heater
and confirm that the alarm indicator comes on, and that
2
SSR
with switch SW
Heater
Contactor
1
2
1
turned on. Confirm that the alarm
G+
G–
S1
S2
1
turned on. Confirm that the
K2CU-P
SW
2
K2CU-F
K2CU
7