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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.

Cat. No. N142-E1-02

OMRON Corporation

Industrial Automation Company

Control Devices Division H.Q.

Shiokoji Horikawa, Shimogyo-ku,
Kyoto, 600-8530 Japan
Tel: (81)75-344-7109/Fax: (81)75-344-7149

Printed in Japan
0806-0.7M (0505) (C)

Warranty and Application Considerations

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 specified) 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 the 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 products.
Take all necessary steps to determine the suitability of the product for the systems, machines, and equipment with which it will be used.
Know and observe all prohibitions of use applicable to this product.
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 PRODUCTS ARE 
PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

Disclaimers

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.

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on improvements and other reasons. Consult with your 
OMRON representative at any time to confirm actual specifications 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.

Summary of Contents for K8AB-AS

Page 1: ...Commercial CT input signal 0 to 1 A 0 to 5 A supported Output status can be monitored using LED indicator Model Number Structure Model Number Legend 1 Basic Model K8AB Measuring and Monitoring Relays...

Page 2: ...1 to 1 A AC DC 0 5 to 5 A AC DC 0 8 to 8 A AC DC 24 VDC not insulated K8AB AS2 24 VDC See note 1 24 VAC insulated K8AB AS2 24 VAC 100 115 VAC insulated K8AB AS2 100 115 VAC 200 230 VAC insulated K8AB...

Page 3: ...ely 30 or more of the set value Note Enabled only for overcurrent operation Indicators Power PWR Green Relay output RY Yellow Alarm outputs ALM Red Input impedance Refer to the Input Range on the prev...

Page 4: ...luence Operating value Based on ambient humidity of 65 25 to 80 5 max Operating time Based on ambient room humidity 25 to 80 10 max Influence of power supply voltage Operating value 5 max Operating ti...

Page 5: ...current path if the inputs and power supply are connected to the same line T LOCK Hysteresis 5 to 50 of operating value Lit Flashing T Operating time 0 1 to 30 s Lock Startup lock time 0 to 30 s Oper...

Page 6: ...K 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 re...

Page 7: ...method relay drive method and operating mode are set using the DIP switch located on the bottom of the Unit K8AB AS does not use SW1 Setting Method 1 Setting Current The current knob SV is used to se...

Page 8: ...for the set period and then stay lit 4 Startup Lock Time The startup lock time is set using the startup lock time knob LOCK The startup lock time can be set to between 0 and 30 s Turn the knob while t...

Page 9: ...s 2 Make sure to use setting values appropriate for the controlled object Failure to do so can cause unintended operation and may result in accident or corruption of the product 3 Do not use thinner o...

Page 10: ...ply are connected internally so the K8AB AS will not operate normally if an unwanted current path exists If an unwanted current path exists use a K8AB model with an AC power supply or use an isolated...

Page 11: ...rating value 25 operating time 0 1 s startup lock timer 0 1 to 30 s set according to the duration of the startup current The K8AB AS3 can be set to between 10 to 100 of the rated current 10 A to 100 A...

Page 12: ...ice 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 W...

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