OMRON K8AK-LSPower Supplies / In Addition/ Measuring / Motor Protective Relays/Component Protective Components

OMRON K8AK-LS Power Supplies / In Addition

K8AK-LS Conductive Level Controller/Catalog
K8AK-LS Conductive Level Controller/Specifications
K8AK-LS Conductive Level Controller/Lineup
K8AK-LS Conductive Level Controller/Dimensions
Purchase the OMRON K8AK-LS Component Protective Components

OMRON K8AK-LS Dimensions

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last update: March 1, 2016

• Self-holding circuit implemented with circuit processing that is not depending on external wiring.

• Switch between water supply and discharge with a DIP switch setting.

• Sensitivity adjustment of operating resistance from 10 k to 100 kΩ for application to a wide range of liquids.

• Prevents chattering of relay contacts that occurs with ripples.

• Easy wiring with ferrules.

• Use 2 × 2.5 mm² solid wire or 2 × 1.5 mm² ferrules.

• Applicable as a floatless switch.

last update: March 1, 2016

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OMRON K8AK-LS catalog
K8AK-LS Conductive Level Controller/Catalog

Catalog

CAD

English
Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.
*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name Catalog Number
[size] Last Update

K8AK-LS Catalog N188-E1-01
[2124KB] Apr 03, 201720170403 K8AK-LS Catalog

Measuring and Monitoring Relays Application Guide N222-E1-01
[1649KB] Jun 01, 201820180601 Measuring and Monitoring Relays Application Guide

Device Selection Guide for Water Level Control Applications N217-E1-01
[2428KB] Jun 12, 201720170612 Device Selection Guide for Water Level Control Applications

OMRON K8AK-LS specification
K8AK-LS Conductive Level Controller/Specifications
last update: April 3, 2017
Ratings

Power supply voltage 24 VAC 50/60 Hz or 24 VDC
100 to 240 VAC 50/60 Hz
Voltage across elec-trodes 5 V p-p (Approx. 20 Hz)
Power consumption 24 VAC/DC: 2.0 VA/1.1 W max.
100 to 240 VAC: 4.6 VA max.
Operating resistance 10 k to 100 kΩ (variable)
Reset resistance 250 kΩ max.
Response time Approx. 0.1 to 10 s (variable)
Length of cable 100 m max. (fully insulated 3-core 0.75-mm² cab-tyre cable, 600 V)
Indicators PWR: Green, RY: Yellow
Output contact ratings Rated load
　Resistive load
　5 A at 250 VAC
　5 A at 30 VDC
Maximum switching capacity: 1,250 VA, 150 W
Minimum load: 5 VDC, 10 mA (reference values)
Mechanical life: 10 million operations min.
Electrical life:
5 A at 250 VAC or 30 VDC: 50,000 operations
3 A at 250 VAC/30 VDC: 100,000 operations
Ambient operating tem-perature -20 to 60°C (with no condensation or icing)
Storage temperature -25 to 65°C (with no condensation or icing)
Ambient humidity 25% to 85% (with no condensation)
Storage humidity 25% to 85% (with no condensation)
Altitude 2,000 m max.
Terminal screw tightening torque 0.49 to 0.59 N·m
Case color N1.5
Case material PC and ABS, UL 94 V-0
Weight Approx. 150 g
Mounting Mounts to DIN Track.
Dimensions 22.5 × 90 × 100 mm (W × D × H)

Specifications

Operating voltage range 85% to 110% of rated voltage
Installation environ-ment Installation category II, pollution level 2
Approved standards EN 61010-1
EMC EN 61326-1 Industrial electromagnetic environment
Safety standards UL 508 (Recognition), Korean Radio Waves Act (Act 10564),
CSA: C22.2 No.14, CCC: GB14048.5
Insulation resistance 20 MΩ min.
Between all external terminals and the case
Between all power supply terminals and all input terminals
Between all power supply terminals and all output terminals
Between all input terminals and all output termi-nals
Dielectric strength 2,000 VAC for 1 min
Between all external terminals and the case
Between all power supply terminals and all input terminals
Between all power supply terminals and all output terminals
Between all input terminals and all output termi-nals
Noise immunity 1,500 V power supply terminal common/normal mode
Square-wave noise of ±1-μs/100-ns pulse width with 1-ns rise time
Vibration resistance Frequency: 10 to 55 Hz, 0.35-mm single amplitude
10 sweeps of 5 min each in X,Y, and Z directions
Shock resistance 100 m/s², 3 times each in 6 directions along 3 axes
Degree of protection Terminals: IP20

last update: April 3, 2017

OMRON K8AK-LS lineup
K8AK-LS Conductive Level Controller/Lineup
last update: October 08, 2015

Power supply voltage Model
24 VAC/DC K8AK-LS1 24 VAC/DC
100 to 240 VAC K8AK-LS1 100-240 VAC

Accessories (Order Separately)
Electrode Holders/Underwater Electrodes

Application For general-
purpose use,
such as water
supply lines For areas
with limited
space For liquids
with low
resistance When
mounting
strength
is required For
resistance
to high-
temperature
or high-
pressure
liquids For
resistance
against
corrosion For
installation
at long
distances
from the
liquid level
Model PS-3S/-4S/-5S PS-31
SUS304,
300 mm BF-1 BF-3/-5 BS-1 BS-1T PH-1/-2
Appearance

Electrode Rods

Electrode Rods are available in sets with the connection nuts, lock nuts, and tightening screws.

Application Purified water service, industrial water, and sewage Purified water service, industrial water, sewage, and
weak alkaline solutions
Model F03-60 SUS304 F03-60 SUS316

Others

Item Model
Protective Cover
(Electrode Holders for the PS or BF Series) F03-11
Mounting Piece (Electrode Holder for the PS Series) F03-12
Separator (to prevent contact between electrodes) F03-14 1P (one pole)
F03-14 3P (three poles)
F03-14 5P (five poles)

last update: October 08, 2015

OMRON K8AK-LS dimension
K8AK-LS Conductive Level Controller/Dimensions
last update: April 01, 2014
Conductive Level Controller
K8AK-LS

Optional Parts for DIN Track Mounting
DIN Tracks
PFP-100N
PFP-50N

* Dimensions in parentheses are for the PFP-50N.

last update: April 01, 2014

NO. K8AK-LS

TYPE:Measuring / Motor Protective Relays Component Protective Components Measuring & Monitoring relays

DATE:2021-06-11

Associated products:
F03-16SF / 16SFC Liquid Leakage Sensing Band/Features 61F-GPN-BT / -BC Conductive Level Controller/Features

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.
*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.
Catalog Name	Catalog Number [size]	Last Update
K8AK-LS Catalog	N188-E1-01 [2124KB]	Apr 03, 201720170403	K8AK-LS Catalog
Measuring and Monitoring Relays Application Guide	N222-E1-01 [1649KB]	Jun 01, 201820180601	Measuring and Monitoring Relays Application Guide
Device Selection Guide for Water Level Control Applications	N217-E1-01 [2428KB]	Jun 12, 201720170612	Device Selection Guide for Water Level Control Applications

Power supply voltage	24 VAC 50/60 Hz or 24 VDC 100 to 240 VAC 50/60 Hz
Voltage across elec-trodes	5 V p-p (Approx. 20 Hz)
Power consumption	24 VAC/DC: 2.0 VA/1.1 W max. 100 to 240 VAC: 4.6 VA max.
Operating resistance	10 k to 100 kΩ (variable)
Reset resistance	250 kΩ max.
Response time	Approx. 0.1 to 10 s (variable)
Length of cable	100 m max. (fully insulated 3-core 0.75-mm² cab-tyre cable, 600 V)
Indicators	PWR: Green, RY: Yellow
Output contact ratings	Rated load 　Resistive load 　5 A at 250 VAC 　5 A at 30 VDC Maximum switching capacity: 1,250 VA, 150 W Minimum load: 5 VDC, 10 mA (reference values) Mechanical life: 10 million operations min. Electrical life: 5 A at 250 VAC or 30 VDC: 50,000 operations 3 A at 250 VAC/30 VDC: 100,000 operations
Ambient operating tem-perature	-20 to 60°C (with no condensation or icing)
Storage temperature	-25 to 65°C (with no condensation or icing)
Ambient humidity	25% to 85% (with no condensation)
Storage humidity	25% to 85% (with no condensation)
Altitude	2,000 m max.
Terminal screw tightening torque	0.49 to 0.59 N·m
Case color	N1.5
Case material	PC and ABS, UL 94 V-0
Weight	Approx. 150 g
Mounting	Mounts to DIN Track.
Dimensions	22.5 × 90 × 100 mm (W × D × H)

Operating voltage range	85% to 110% of rated voltage
Installation environ-ment	Installation category II, pollution level 2
Approved standards	EN 61010-1
EMC	EN 61326-1 Industrial electromagnetic environment
Safety standards	UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA: C22.2 No.14, CCC: GB14048.5
Insulation resistance	20 MΩ min. Between all external terminals and the case Between all power supply terminals and all input terminals Between all power supply terminals and all output terminals Between all input terminals and all output termi-nals
Dielectric strength	2,000 VAC for 1 min Between all external terminals and the case Between all power supply terminals and all input terminals Between all power supply terminals and all output terminals Between all input terminals and all output termi-nals
Noise immunity	1,500 V power supply terminal common/normal mode Square-wave noise of ±1-μs/100-ns pulse width with 1-ns rise time
Vibration resistance	Frequency: 10 to 55 Hz, 0.35-mm single amplitude 10 sweeps of 5 min each in X,Y, and Z directions
Shock resistance	100 m/s², 3 times each in 6 directions along 3 axes
Degree of protection	Terminals: IP20

Power supply voltage	Model
24 VAC/DC	K8AK-LS1 24 VAC/DC
100 to 240 VAC	K8AK-LS1 100-240 VAC

Application	For general- purpose use, such as water supply lines	For areas with limited space	For liquids with low resistance	When mounting strength is required	For resistance to high- temperature or high- pressure liquids	For resistance against corrosion	For installation at long distances from the liquid level
Model	PS-3S/-4S/-5S	PS-31 SUS304, 300 mm	BF-1	BF-3/-5	BS-1	BS-1T	PH-1/-2
Appearance

Application	Purified water service, industrial water, and sewage	Purified water service, industrial water, sewage, and weak alkaline solutions
Model	F03-60 SUS304	F03-60 SUS316

Item	Model
Protective Cover (Electrode Holders for the PS or BF Series)		F03-11
Mounting Piece (Electrode Holder for the PS Series)		F03-12
Separator (to prevent contact between electrodes)		F03-14 1P (one pole) F03-14 3P (three poles) F03-14 5P (five poles)