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K8AK-AS

5

Nomenclature

Front

Indicators

Setting Knobs

Note: 1.

Use either a solid wire of 2.5 mm

2

 maximum or a ferrule with 

insulating sleeve for the terminal connection.

The length of the exposed current-carrying part inserted into 

the terminal must be 8 mm or less to maintain dielectric 

strength after connection. 

Recommended ferrules

Phoenix Contact

Al 1,5-8BK (for AWG16)

Al 1-8RD (for AWG18)

Al 0,75-8GY (for AWG18)

2.

Tightening torque: 0.49 N·m

Power indicator

Relay status indicator

Current knob (SV)

Hysteresis knob (HYS.)

Operating time knob (T)

Startup lock time knob

(LOCK)

Alarm indicator

Terminal block

 (See notes 1 and 2.)

Terminal block

 (See notes 1 and 2.)

Item

Meaning

Power indicator 

(PWR: Green)

Lit when power is being supplied.

Relay status indicator 

(RY: Yellow)

Lit when relay is operating. 

Alarm indicator 

(ALM: Red)

Lit when there is an overcurrent or un-

dercurrent. 

The indicator flashes to indicate the er-

ror status after the input has exceeded 

the set value while the operating time 

is being clocked. 

Item

Usage

Current knob (SV)

Used to set the current to 10% to 100% 

of maximum setting range.

Hysteresis knob (HYS.)

Used to set the rest value to 5% to 50% 

of the operating value.

Operating time knob (T)

Used to set the operating time to 0.1 to 

30 s.

Startup lock time knob 

(LOCK)

Used to set the startup lock time to 0 to 

30 s.

For 2.5 mm

2

 or 

smaller solid wires

For ferrules with 

an insulation sleeve.

8 mm max.

8 mm max.

Summary of Contents for K8AK-AS

Page 1: ...ble Accessory Order Separately OMRON CT Commercially Available CTs If you use a commercially available CT do notexceed the overload capacity of the K8AK AS2 Refer to Safety Precautions for the K8AK Se...

Page 2: ...K8AK AS2 0 1 to 1 A AC DC Compatible with commercially available CTs 0 5 to 5 A AC DC Compatible with commercially available CTs 0 8 to 8 A AC DC K8AK AS3 When used with the OMRON CT K8AC CT200L 10 t...

Page 3: ...humidity rated power supply voltage DC or 50 60 Hz sine wave input Operating time 50 ms at 25 C and 65 humidity rated power supply voltage Applicable standards Conforming standards EN60947 5 1 Install...

Page 4: ...5 and 10 mm min Test method Relationship of Mounting Distance between K8AK AS Relays and Input Current Reference Values The following diagram shows the relationship between the mounting distances and...

Page 5: ...e notes 1 and 2 Terminal block See notes 1 and 2 Item Meaning Power indicator PWR Green Lit when power is being supplied Relay status indicator RY Yellow Lit when relay is operating Alarm indicator AL...

Page 6: ...input terminal Example K8AK AS3 Using Input Terminals I3 COM The maximum setting range will be 200 A AC and the setting range will be 20 to 200 A 2 Hysteresis Hysteresis is set using the hysteresis k...

Page 7: ...lashes when the set value and the input have reached the same level Use this as a guide to set the startup lock time The startup lock time will start when the input current reaches 30 or more of the s...

Page 8: ...ure for information on the motor startup current For a motor with a rating of 5 A the startup current will be approximately 30 A The startup current will exceed the overload capacity rating 150 for 1...

Page 9: ...s 2 Use and store the product in a location where the ambient temperature and humidity are within the specified ranges If applicable provide forced cooling 3 Mount the product in the correct direction...

Page 10: ...will be large if the K8AK AS K8AK AW K8AK VS or K8AK VW is used for thyristor or inverter control The K8AK PH K8AK PA K8AK PM K8AK PW or K8DS PH cannot be used on the secondary side of an inverter To...

Page 11: ...nt or addition to the above warranty See http www omron247 com or contact your Omron representative for pub lished information 14 Limitation on Liability Etc OMRON COMPANIES SHALL NOT BE LIABLE FOR SP...

Page 12: ...rasil 55 11 2101 6300 www omron com br OMRON ARGENTINA SALES OFFICE Cono Sur 54 11 4783 5300 OMRON CHILE SALES OFFICE Santiago 56 9 9917 3920 OTHER OMRON LATIN AMERICA SALES 54 11 4783 5300 OMRON INDU...

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