K2CU-F40A-C AC16-40AAC100 - Omron Automation and Safety

Heater Element Burnout Detector

K2CU

Accurate Detection of Heater Element

Burnout Regardless of Heater Capacities

• Accurately detects a burned heater element or elements incor-

porated by a molding machine or packing machine and outputs

an alarm signal.

• Precisely singles out the burned element even if one heater el-

ement among several heater elements has been burned out.

• Applicable to small- to large-capacity heater elements.

• All K2CU-F large-capacity, built-in current transformer models

work with both single-phase and three-phase heaters.

• Voltage fluctuation compensation function eliminates false

alarms due to variations in the supply voltage.

Model Number Structure

■Model Number Legend

1. Heater Element Burnout Detector

2. Operation

F: Large-capacity, built-in Current Transformer model

P: Small-capacity plug-in model

3. Operating Current Range

0.5: 0.25 to 0.5 A

1: 0.5 to 1 A

2: 1 to 2 A

4: 2 to 4 A

10: 4 to 10 A

20: 8 to 20 A

40: 16 to 40 A

80: 32 to 80 A

4. Voltage Compensation

None: Not provided

A: Provided

5. Control Power Supply Voltage

A: 100/200 VAC

B: 110/220 VAC

C: 100 VAC

D: 110 VAC

E: 200 VAC

F: 220 VAC

6. Gate Input

None: Not provided

GS: Provided

Ordering Information

K2CU-F@@A-@GS Model with Gate Input Terminals

Note: A model with a gate input terminal is required to combine the K2CU with a temperature controller that uses PID control for temperature control of a heater. To do

so, use a temperature controller with a voltage output.

123 4 5 6

K2CU-@@@-@@

Control supply voltage Operating current

4 to 10 A 8 to 20 A 16 to 40 A 32 to 80 A

100 VAC With voltage fluctuation compensation K2CU-F10A-CGS K2CU-F20A-CGS K2CU-F40A-CGS K2CU-F80A-CGS

110 VAC K2CU-F10A-DGS K2CU-F20A-DGS K2CU-F40A-DGS K2CU-F80A-DGS

200 VAC K2CU-F10A-EGS K2CU-F20A-EGS K2CU-F40A-EGS K2CU-F80A-EGS

220 VAC K2CU-F10A-FGS K2CU-F20A-FGS K2CU-F40A-FGS K2CU-F80A-FGS

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K2CU

K2CU-F Large-capacity, Built-in Current Transformer Models

K2CU-P Small-capacity, Plug-in Models

Specifications

■Ratings

■Characteristics

Note: The logical value is an operating value within a range of 0.85 to 1.1 with a voltage fluctuation of 85% to 110%, based on the value at the control supply voltage

measured as 1.

Control supply voltage Operating current

4 to 10 A 8 to 20 A 16 to 40 A 32 to 80 A

100 VAC With voltage fluctuation compensation K2CU-F10A-C K2CU-F20A-C K2CU-F40A-C K2CU-F80A-C

110 VAC K2CU-F10A-D K2CU-F20A-D K2CU-F40A-D K2CU-F80A-D

200 VAC K2CU-F10A-E K2CU-F20A-E K2CU-F40A-E K2CU-F80A-E

220 VAC K2CU-F10A-F K2CU-F20A-F K2CU-F40A-F K2CU-F80A-F

Control supply voltage Operating current

0.25 to 0.5 A 0.5 to 1 A 1 to 2 A 2 to 4 A

100/

200 VAC

With voltage fluctuation compensation K2CU-P0.5A-A K2CU-P1A-A K2CU-P2A-A K2CU-P4A-A

Without voltage fluctuation compensation --- K2CU-P1-A K2CU-P2-A K2CU-P4-A

110/

220 VAC

With voltage fluctuation compensation K2CU-P0.5A-B K2CU-P1A-B K2CU-P2A-B K2CU-P4A-B

Without voltage fluctuation compensation --- K2CU-P1-B K2CU-P2-B K2CU-P4-B

Item K2CU-F K2CU-P

Control supply voltage 100, 110, 200, 220 VAC 100/200, 110/220 VAC

Rated frequency 50/60 Hz

Carry current 1.25 times as large as each model’s maximum operating cur-

rent

2.5 A for K2CU-P0.5A-A/-B;

5 A

Operating voltage range 85% to 110% of control supply voltage

Voltage fluctuation compensation

range

85% to 110% of control supply voltage 85% to 110% of control supply voltage (applicable only on

models with voltage fluctuation compensation)

Operating current 4 to 10 A, 8 to 20 A, 16 to 40 A, 32 to 80 A (continuously vari-

able)

0.25 to 0.5 A, 0.5 to 1 A, 1 to 2 A, 2 to 4 A (continuously vari-

able)

Releasing current 105% max. of operating current 110% max. of operating current

Operate time 0.5 s max. (when current changes from 150% to 0%)

Gate input voltage range (for models

with gate input terminals)

5 to 30 VDC ---

Control output 2 A at 220 VAC, SPDT (cosφ = 0.4)

Power consumption Input: 0.5 VA max.

Power supply: 5 VA max.

Input: 1 VA max.

Power supply: 4 VA max.

Setting accuracy ±7% max.

Repeat accuracy ±3% max.

Influence of temperature ±10% max. (at 20°C±30°C)

Influence of voltage Models without voltage fluctuation compensation:

±3% max. of the value measured at the control supply voltage, on condition that the voltage fluctuation is 85% to 110% of

the control supply voltage

Models with voltage fluctuation compensation:

±5% max. of the logical value, on condition that the voltage fluctuation is 85% to 110% of the control supply voltage. (see

note)

Influence of frequency ±3% max. (at ±5% of rated frequency)

Insulation resistance 10 MΩ min. (at 500 VDC) between electric circuits and mounting panel

Dielectric strength 2,000 VAC, 50/60 Hz for 1 min between electric circuits and mounting panel

Overcurrent 20 times of max. set value of operating current for 2 s

Vibration resistance Destruction: 16.7 Hz, 1-mm double amplitude for 10 min each in X, Y, and Z directions

Shock resistance Destruction: 98 m/s2 (approx. 10G)

Ambient temperature Operating: –10°C to 55°C (with no icing)

Ambient humidity Operating: 45% to 85%

Weight K2CU-F: approx. 390 g; K2CU-P: approx. 300 g

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K2CU

Operation

K2CU-F@@A-@GS Series

When power is supplied to the heater (when the SSR is ON), a cur-

rent flows through the wires to the heater elements. At the same

time, a voltage is imposed on the gate circuit and the K2CU-

F@@A@GS begins monitoring the current flowing through the heater

wires.

The current flowing to the heater wires is detected by the detector

sections through each Current Transformer (CT) incorporated by the

K2CU-F@@A-@GS.

The current signals transmitted by the two CTs are sent to the cur-

rent-voltage converters, smoothing circuits, and comparators as

shown in the diagram.

The signal generated by the reference voltage generator is sent to

the setting circuit to provide a reference value. The reference value is

sent to the comparators. Each comparator compares its heater ele-

ment current input and the reference value. If the input is lower than

the reference value, a signal is sent to the output circuit.

There are two detector sections operating independently. If either of

the input signals from the CTs is lower than the reference value, the

output relay and alarm indicator will be activated.

The K2CU-F@@A-@GS incorporates a voltage fluctuation compen-

sation function which automatically corrects the reference value if the

supply voltage fluctuates.

Temperature

controller

Heater elements

Power supply

To each circuit

Note: 1. The dotted lines indicate the line conductors passing through the windows of the current transformers.

G+ G−S1S2

SSR DC

X/c

Output relay

Alarm indicator

Buzzer

CT1

CT2

Current voltage

converter

Smoothing

circuit

Smoothing

circuit

Current voltage

converter

Gate circuit

ComparatorComparator

Setting circuit

Output circuit

Reference voltage

generator

Power circuit

2. The current flowing into the gate circuit (between G+ and G−) is as follows:

Approximately 1.4 mA at 5 VDC

Approximately 3.4 mA at 12 VDC

Approximately 6.7 mA at 24 VDC

3. When using a K2CU which has the model number suffix "GS" (a model that incorporates gate

input terminals), the control output of the temperature controller must be a voltage output type.

−

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K2CU

K2CU-F Series

When power is supplied to the heater (when the contactor is ON), a

current flows through the wires to the heater elements. At the same

time, a voltage is imposed on the power circuit of the K2CU-F.

The current flowing to the heater wires is detected by the detector

sections through each Current Transformer (CT) incorporated by the

K2CU-F.

The current signals transmitted by the two CTs are sent to the cur-

rent-voltage converters, smoothing circuits, and comparators as

shown in the diagram.

The signal generated by the reference voltage generator is sent to

the setting circuit to provide a reference value. The reference value is

sent to the comparators. Each comparator compares its heater ele-

ment current input and the reference value. If the input is lower than

the reference value, a signal is sent to the output circuit.

There are two detector sections operating independently. If either of

the input signals from the CTs is lower than the reference value, the

output relay and alarm indicator will be activated.

The K2CU-F incorporates a voltage fluctuation compensation func-

tion which automatically corrects the reference value if the supply

voltage fluctuates.

K2CU-P Series

The K2CU-P operates basically in the same way as the K2CU-F.

The comparator compares external current signals and the reference

value and outputs the result of the comparison to the output circuit.

Note: The dotted lines indicate the line conductors passing through the windows of the current transformers.

X/c

CT1

CT2

Contactor

Heater elements

Power supply

To each circuit

Output relay

Alarm indicator

Buzzer

Current voltage

converter

Smoothing

circuit

Smoothing

circuit

Current voltage

converter

ComparatorComparator

Setting circuit

Output circuit

Reference voltage

generator

Power circuit

X/c

678

200/220 V 100/110 V 0 V

Contactor

Heater elements

Power supply

To each circuit

Output relay

Alarm indicator

Buzze

Current voltage

converter

Smoothing

circuit

Comparator

Setting circuit

Output circuit

Reference voltage

generator

Power circuit

Note: The heater and the operating power supply

connected via terminals 6 and 8 or terminals

7 and 8 must be turned ON at the same time.

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K2CU

■Setting of Operating Current

Use the potentiometer on the front panel to set the operating current.

Rotate the knob to set the desired current value at which the Heater

Burnout Detector should operate. Do not exceed the maximum and

minimum positions.

The K2CU-F’s scale is divided into 12 graduations including sub-

graduations and the K2CU-P’s scale is divided into 5 graduations.

The knobs of the K2CU-F and K2CU-P as shown in the illustrations

are set to 32 A and 0.7 A respectively.

The set operating current is defined as the mean value of the heater

current under normal operating conditions and the heater current

under a burnout or abnormal condition.

■Heater Connection and Current

The following table shows the different connections possible. The formula under each illustration indicates the electrical current value of the heater

elements under normal and abnormal conditions.

Note: Values in this table are correct when a 200 VAC, 1 kW heater is used on a single-phase or three-phase current.

Set value = Normal current + abnormal current

Red point

(indicates the set value)

Knob

HEATER FAULT DETECTOR

ALARM 7

K2CU-F40A-C

MADE IN JAPAN

OMRON Corporation

0.5

100/200 VAC

50/60Hz

SOURCE

CURRINT 5A/AC/Max.

14 16

K2CU-P1A-A

HEATER FAULT DETECTOR

ALARM

100/200VAC

Phase Normal condition Abnormal condition

Single phase

Three phase Delta network

Star network

V network

200 V

5 A

1 kW

200 V

0 A

200 V

1 kW

8.7 A

200 V

(5 A × )

√

7.5 A

(5 A × × )

√

5 A

8.7 A

(5 A × × )

√3√3

200 V

1 kW

2.9 A

200 V

(5 A × )

√3

2.5 A

(5 A × × )

√3

2.5 A

(5 A × × )

√3

200 V

1 kW

5 A

8.7 A

5 A

200 V

(5 A × = 8.7 A)

√

2.5 A

(5 A × )

2(5 A × 1)

5 A

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K2CU

■Operation Check

K2CU-F@@A-@GS

The operation of the heater burnout detector can be easily checked as follows:

In a Single-phase Circuit

Set the operating current to be 0.6 to 0.55 times the heater current.

Close the SW2 with switch SW

1 turned on. Confirm that the alarm

indicator remains off.

Turn off SW1 and confirm that the alarm indicator comes on, and that

the output relay operates.

In a Three-phase, Delta Network

Set the operating current to be 0.6 times the heater current.

Close the SW3 with switches SW1 and SW2 turned on. Confirm that

the alarm indicator remains off.

Turn off SW2 and confirm that the alarm indicator comes on, and that

the output relay operates.

Turn on SW1 set the operating current to be 0.9 times the heater cur-

rent, and confirm that the alarm indicator goes off and the output

relay releases.

Turn off SW1 and confirm that the alarm indicator comes on, and that

the output relay operates.

In a Three-phase, Star Network

Set the operating current to be 0.9 times the heater current.

Close the SW2 with switch SW

1 turned on. Confirm that the alarm

indicator remains off.

Turn off SW1 and confirm that the alarm indicator comes on, and that

the output relay operates.

Heater

K2CU-F

SSR

SW1

SW2

Heater

K2CU-F

SW3

SSR

SW2

SW1

K2CU-F

SW2

SSR

SW1

Heater

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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 SW2 with switch SW

1 turned on. Confirm that the alarm

indicator remains off.

Turn off SW1 and confirm that the alarm indicator comes on, and that

the output relay operates.

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 SW2 with switch SW1 turned on. Confirm that the alarm

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.

Close the contactor with switch SW1 turned on. Confirm that the

alarm indicator remains off.

Turn off SW1 and confirm that the alarm indicator comes on, and that

the output relay operates.

Heater

K2CU-F

SW2

SSR

SW1

K2CU-

SW2

SSR

SW1

Heater

Contactor

Heater

Contactor

K2CU-F

K2CU-P

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K2CU

In a Three-phase, Delta Network

Set the operating current to be 0.6 times the heater current.

Close the contactor with switches SW1 and SW2 turned on. Confirm

that the alarm indicator remains off.

Turn off SW2 and confirm that the alarm indicator comes on, and that

the output relay operates.

Turn on SW1 set the operating current to be 0.9 times the heater cur-

rent, and confirm that the alarm indicator goes off and the output

relay releases.

Turn off SW1 and confirm that the alarm indicator comes on, and that

the output relay operates.

In a Three-phase, Star Network

Set the operating current to be 0.9 times the heater current.

Close the contactor with switch SW1 turned on. Confirm that the

alarm indicator remains off.

Turn off SW1 and confirm that the alarm indicator comes on, and that

the output relay operates.

In a Three-phase, V Network 1

Set the operating current to be 0.3 to 0.35 times the heater current.

Close the contactor with switch SW1 turned on. Confirm that the

alarm indicator remains off.

Turn off SW1 and confirm that the alarm indicator comes on, and that

the output relay operates.

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 contactor with switch SW1 turned on. Confirm that the

alarm indicator remains off.

Turn off SW1 and confirm that the alarm indicator comes on, and that

the output relay operates.

Heater

Contactor

SW1

SW2

K2CU-F

Heater

Contactor

K2CU-F

SW1

Heater

Contactor

K2CU-F

Contactor

Heater

K2CU-P

K2CU-F

Heater

Contactor

K2CU-P K2CU-F

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K2CU

■Test Circuit

To check the operation in detail, use the following circuit.

Dimensions

Note: All units are in millimeters unless otherwise indicated.

Slidac

Switch

Slidac

Switch

The dotted lines indicate the line con-

ductor passing through the round

window of the current transformer.

Note: Determine the value of R according to the specifications

of the K2CU to be used. The dotted line indicates the

connection at a supply voltage of 100 or 110 VAC.

K2CU-P

CM1

K2CU-F

K2CU-F K2CU-P

K2CU-F Eight, M3.5

terminal

screws Two, 20-dia.

holes

6-dia. mounting

hole

Alarm

indicator

Potentiometer

knob

90102111

108

102

Mounting Holes

6.5 mm max.

Two, 6-dia. or M5

mounting holes

Note: 1. Install the K2CU-F on

a flat surface.

2. When solderless terminal

lugs are desired, use

ones having an outer

diameter of 6.5 mm

maximum.

K2CU-P

Connecting Socket

3.5

7291

78.5

8PFA1 (order separately)

K2CU-P

108

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K2CU

Installation

■External Connections

K2CU-F@@A-@GS

Single-phase Heater Three-phase Heater

K2CU-F

Single-phase Heater Three-phase Heater

Note: 1. The dotted lines which pass through the heater burnout detector indicate the line conductor passing through the round “window” of the

window-type Current Transformer.

2. Y: External relay for self-holding circuit

BZ: Alarm buzzer

L: Alarm indicator

3. To use a 100 (110) VAC control power supply with K2CU-P, connect it to terminal 7 instead of 6.

Temperature

sensor

Heater

Temperature

controller

Power

supply

Control

voltage

SSR

Y/a

K2CU-F

CM1

Heater

Temperature

controller

Power

supply

Control

voltage

Temperature

sensor

SSR

Y/a

K2CU-F

CM1

Heater

Power

supply

Contactor

Temperature

sensor

Tempera-

ture

controller

Control

contact

Y/a

K2CU-F

CM1

Heater

Power

supply

Contactor

Temperature

sensor

Tempera-

ture

controller Control

contact

Y/a

K2CU-F

CM1

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K2CU

Three-phase, V-connected Heater

Note: The dotted lines which pass through the heater burnout detec-

tor indicate the line conductor passing through the round “win-

dow” of the window-type Current Transformer.

With External Current Transformer

K2CU-P Small-capacity, Plug-in Models

Small-capacity Heater With External Current Transformer

Note: 1. The dotted lines which pass through the heater burnout detector indicate the line conductor passing through the round “window” of the

window-type Current Transformer.

2. Y: External relay for self-holding circuit

BZ: Alarm buzzer

L: Alarm indicator

3. To use a 100 (110) VAC control power supply with K2CU-P, connect it to terminal 7 instead of 6.

Heater

K2CU-F

CM1

Heater

Power

supply

Note: Pass two out of the three line conductors

through the current transformers of the

heater burnout detector twice as shown.

K2CU-F10A-@

CM1

@A/5A

Temperature

sensor

Heater

Temperature

controller

Power

supply

Control

contact

K2CU-P

3Y/a

Temperature

sensor

Heater

Power

supply

Control

contact

Contactor

@A/5A

Y/a

K2CU-P

Tempera-

ture

controller

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K2CU

Safety Precautions

K2CU-F@@A-@GS

Use the K2CU-F@@A-@GS (with gate input terminals) in combina-

tion with a temperature controller that has PID with feed-forward cir-

cuitry to control the heater temperature, in which case, the heater

element(s) must be turned ON or OFF for 0.1 s or longer.

K2CU-F

When a single-phase heater is used, pass the two lines through the

openings of the heater burnout detector. When a three-phase heater

is used, pass two (phases) of the three lines through the openings. In

either case, if only one line passes through, an alarm signal will

always be produced.

Pass the lines through the openings only once. If they are passed

more than once, the actual operating current will be less than the set

current. The lines can be passed in either direction.

To use the heater burnout detector at a current less than the current

range that can be set, the lines must be passed more than once.

Determine the number of times the lines should be passed by the fol-

lowing equation:

(Operating current) x n = Current setting range

where,

n: number of times the lines loop through the window

All K2CU-F models incorporate a voltage fluctuation compensation

function.

K2CU-P

The K2CU-P can be used only in single-phase circuits.

Do not pull out the K2CU-P from the socket when the K2CU-P is

energized. Especially when using it in combination with a Current

Transformer commercially available, this practice causes the second-

ary circuit of the transformer to open, which is very dangerous.

General

Refer to External Connections before using the K2CU with external

CTs.

When a temperature controller is used in combination with the K2CU

(except for the K2CU-F@@A-@GS), the heater element(s) must be

turned ON or OFF for 1 s or longer (although the heater element(s)

can be turned ON for 0.5 s according to the specifications).

The K2CU cannot be used with a phase-control circuit, inverter cir-

cuit, frequency-count circuit, cycle-control unit, or a motor load.

Mounting

Securely mount the K2CU as horizontally as possible although there

is no particular limitation of mounting directions.

Connection

Solderless-type terminal must be connected to the terminals

securely.

Wire the terminals correctly by referring to the external connections.

The terminals have no polarity. Be sure to connect 100 (or 110) V to

the 100-V (or 110-V) terminals and 200 (or 220) V to the 200-V (or

220-V) terminals of the K2CU-P or the K2CU-P may malfunction.

The control power source for the K2CU (except for the K2CU-F@@A-

@GS) must be supplied from the load side via a contactor.

Be sure to impose a voltage between the 0-V terminal and 100-V (or

110-V) terminal or the 0-V terminal and 200-V (or 220-V) terminal of

the K2CU-P, otherwise the K2CU-P will not operate.

With single-phase

power supply

With three-phase

power supply

Heater

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K2CU

What settings are required to connect more than one heater in parallel?

The following table shows relative changes in the current when any one of several elements connected in parallel has burned out. Use this

table as a guideline in determining the current setting. The degree of change in the current when an element burns out may be too small

to detect if more than five elements are connected in parallel. As a rule, do not connect more than 5 elements in parallel.

Note: 1. This table shows the respective change rates in current when any one of several elements connected in parallel has burned out.

2. The values in the table are current ratios after one element burns out in comparison to a normal current of “1” (i.e., the current before the

element burns out).

3. The values in this table are logical values. These values may vary slightly because of influence of unbalanced loads (heaters). It is there-

fore recommended to test the actual current values and the load condition before determining the operating current, especially when the

current under the normal condition and that under an abnormal condition do not significantly differ.

Can the K2CU be used for heaters with a voltage of 400/

440?

Yes. It can be used if a power transformer is used to drop the

voltage applied to the control power supply voltage terminals

of the K2CU to 100 to 220 V.

Can the K2CU be used for three-phase circuits with

unbalanced currents?

Unbalanced currents can exist because of different heater

capacities or because different numbers of elements are

connected to each phase, causing the current for each phase

to be different even during normal operation.

There is only one setting provided for the two holes on the

K2CU, so the setting must be made below the current value

for the phase with the lowest current. This could prevent the

current from dropping below the set value depending on the

element that burns out. It is thus not possible to detect heater

burnouts for all elements connected with unbalanced

currents. Either balanced circuits must be used, or a separate

K2CU must be installed for each phase.

Can the control power supply for the K2CU be connected

from a separate circuit from the one used for the heater

circuit?

With a model with a large-capacity, built-in current

transformer, changes in the control power supply voltage are

used in compensating the reference value for the internal

setting circuit. A large error may occur in the operating value

if power is supplied from a separate circuit.

Connection n = 1 n = 2 n = 3 n = 4 n = 5

Single-

phase

I is 0 when one

element burns

out

0.5 0.67 0.75 0.8

Star Current in burned-out phase I is 0 when one

element burns

out

0.6 0.75 0.82 0.86

Current in other phases 0.87 0.92 0.95 0.96 0.97

Delta Current in burned-out phase 0.58 0.77 0.84 0.88 0.91

Current in other phases 1 1 1 1 1

Q&A

INo. of heater = n

No. of heater

per phase = n

No. of heater

per phase = n

In the interest of product improvement, specifications are subject to change without notice.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

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2008.1

OMRON Corporation

Industrial Automation Company

In the interest of product improvement, specifications are subject to change without notice.

Read and Understand This Catalog

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or

comments.

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if

speciﬁ ed) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR

FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE

HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL

OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR COMMERCIAL

LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR

STRICT LIABILITY.

In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS

OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT

SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's

application or use of the product.

At the customer's request, OMRON will provide applicable third party certiﬁ cation documents identifying ratings and limitations of use that apply to the

products. This information by itself is not sufﬁ cient for a complete determination of the suitability of the products in combination with the end product,

machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible

uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety

equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE

SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND

INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

Disclaimers

CHANGE IN SPECIFICATIONS

Product speciﬁ cations and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when signiﬁ cant construction changes are made.

However, some speciﬁ cations of the product may be changed without any notice. When in doubt, special model numbers may be assigned to ﬁ x

or establish key speciﬁ cations for your application on your request. Please consult with your OMRON representative at any time to conﬁ rm ac tu a l

speciﬁ cations of purchased product.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

ERRORS AND OMISSIONS

The information in this catalog has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,

typographical, or proofreading errors, or omissions.

PERFORMANCE DATA

Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent

the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON

Warranty and Limitations of Liability.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

This catalog shall not be copied for sales or promotions without permission.

This catalog is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this

catalog in any manner, for any other purpose. If copying or transmitting this catalog to another, please copy or transmit it in its entirety.

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Omron:

K2CU-F10A-C AC4-10A AC100 K2CU-F10A-D AC110 K2CU-F10A-EGS K2CU-F10A-F AC220 K2CU-F20A-C AC8-

20A AC100 K2CU-F20A-D AC110 K2CU-F20A-EGS K2CU-F20A-F AC220 K2CU-F40A-C AC16-40AAC100 K2CU-

F40A-D AC110 K2CU-F40A-EGS K2CU-F40A-F AC220 K2CU-F80A-C AC32-80A AC100 K2CU-F80A-D AC110

K2CU-F80A-F K2CU-P4A-A AC110