Page 1
Three-phase Phase-sequence Phase-loss Relay
123
K8AB-@@
Phase to phase voltage (3 wires)
Phase to neutral voltage (4 wires)
L1 L2 L3 L1 L2 L3 N
400VAC
400VAC
400VAC
230VAC
230VAC
230VAC
K8AB-PM
Ideal for monitoring 3-phase power supplies
for industrial facilities and equipment.
• Monitor overvoltages, undervoltages, phase sequence, and
phase loss for three-phase 3-wire or 4-wire power supplies with
just one Unit.
Switch setting for 3-phase 3-wire or 3-phase 4-wire power
supply.
• Two SPDT output relays, 6 A at 250 VAC (resistive load).
Output overvoltages and undervoltages using separate relays.
• World-wide power specifications supported by one Unit
(switchable).
• Output status can be monitored using LED indicator.
Model Number Structure
■ Model Number Legend
1. Basic Model
K8AB: Measuring and Monitoring Relays
2. Functions
PM: Three-phase Phase-sequence Phase-loss Relay (Simultaneous upper and lower monitoring)
3. Rated Input Voltage
1: 115, 127, 133, 138, 200, 220, 230, 240 VAC
2: 220, 230, 240, 277, 380, 400, 415, 480 VAC
Single K8AB Monitors 3-phase Power Supply with 3 or 4 Wires
Monitoring Relays can be used to monitor 3-phase power supplies with 3 or 4 wires simply by changing DIP switch settings.
A Single K8AB Can Monitor a 3-phase Power Supply Anywhere in the World
Reduces Maintenance Parts Inventory
K8AB-P@1
K8AB-P@2
SW3 ON ON OFF OFF
SW4 ON OFF ON OFF
SW2
SW2
ON P-N 138 V 133 V 127 V 115 V
OFF P-P 240 V 230 V 220 V 200 V
ON P-N 277 V 240 V 230 V 220 V
OFF P-P 480 V 415 V 400 V 380 V
Cat. No. N146-E1-02 Three-phase Phase-sequence Phase-loss Relay K8AB-PM 1
Page 2
Ordering Information
■ List of Models
Three-phase Phase-sequence Phase-loss Relay Rated input (See note 2.) Model
3-phase 3-wire mode 200, 220, 230, 240 VAC K8AB-PM1
3-phase 4-wire mode 115, 127, 133, 138 VAC
3-phase 3-wire mode 380, 400, 415, 480 VAC K8AB-PM2
3-phase 4-wire mode 220, 230, 240, 277 VAC
Note: 1. Three-phase 3-wire or 4-wire and the input range are switched using a DIP switch.
2. The power supply is shared with the rated input voltage.
Ratings and Specifications
■ Ratings
Rated input
voltage
Input load K8AB-PM1: 25 VA max.
Operating value setting range (OVER, UNDER) Overvoltage
Operating value 100% operation at set value
Reset value 5% of operating value (fixed)
Reset method Automatic reset
Operating time
setting range (T)
Startup lock time (LOCK) 1 s or 5 s (Switched using DIP switch.)
Indicators P ower (PWR): Green, Relay output (RY): Yellow, OVER/UNDER: Red
Output relays Two SPDT relays (NC operation)
Output relay ratings Rated load
Ambient operating temperature −20 to 60°C (with no condensation or icing)
Storage temperature −40 to 70°C (with no condensation or icing)
Ambient operating 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 N·m
Terminal wiring method Recommended wire
Case color Munsell 5Y8/1
Case material ABS resin (self-extinguishing resin) UL94-V0
Weight Approx. 130 g
Mounting Mounted to DIN Track or via M4 screws (tight ening torque: 1.2 N·m)
Dimensions 22.5 (W) × 90 (H) × 100 (D) mm
K8AB-PM1 Three-phase, three-wire Mode: 200, 220, 230 and 240 VAC
K8AB-PM2 Three-phase, three-wire Mode: 380, 400, 415 and 480 VAC
Overvoltage/undervoltage 0.1 to 30 s
Reversed phase/phase loss 0.1 s max.
Three-phase, four-wire Mode: 115, 127, 133 and 138 VAC
Three-phase, four-wire Mode: 220, 230, 240 and 277 VAC
K8AB-PM2: 45 VA max.
−30% to 25% of rated input volta ge
Undervoltage
−30% to 25% of rated input volta ge
Note: The rated input voltage can be switched using the DIP switch.
Resistive load
6 A at 250 VAC (cosφ = 1)
6 A at 30 VDC (L/R = 0 ms)
Inductive load
1 A at 250 VAC (cosφ = 0.4)
1 A at 30 VDC (L/R = 7 ms)
Maximum contact voltage: 250 VAC
Maximum contact current: 6 A AC
Maximum switching capacity: 1,500 VA
Minimum load: 10 mA at 5 VDC
Mechanical life: 10,000,000 operations
Electrical life: Make: 50,000 times, Break: 30,000 times
Solid wire: 2.5 mm
Twisted wires: AWG16, AWG18
Note: 1. Ferrules with insulating sleeves must be used with twisted wires.
2. Two wires can be twisted together.
Recommended ferrules
Al 1,5-8BK (for AWG16) manufactured by Phoenix Contact
Al 1-8RD (for AWG18) manufactured by Phoenix Contact
Al 0,75-8GY (for A WG18) manufactured by Phoenix Contact
2
2 Three-phase Phase-sequence Phase-loss Relay K8AB-PM Cat. No. N146-E1-02
Page 3
■ Specifications
Input frequency range 45 to 65 Hz
Overload capacity Continuous input: 115% of maxim um input, 10 s max.: 125% of maximum input
Setting error Operating value Set value ±10% of full scale
Operating time
Startup lock time Set value ±0.5 s
Repeat error Operating value Operating value ±2%
Reset value Overvoltage: Operating value x 95% ±2%
Operating time Operating time repeat error: ±50 ms
Startup lock time Startup lock time repeat error: ±0.5 s
Temperature influence Operating value
Humidity influence Operating value
Influence of input frequency At 45 to 65 Hz
Applicable
standards
Insulation resistance 20 MΩ min.
Dielectric strength 2,000 VAC for one minute
Noise immunity 1,500 V power supply terminal common/normal mode
Vibration resistance
Shock resistance 100 m/s
Degree of protection Terminal section: Finger protection
Conforming standards EN60255-5 and EN60255-6
EMC EN61326
Safety standards UL508
Error calculation: Error = ((Maximum operating value − Minimum operating value (over 10 operations))/2)/
Average value × 100%
Undervoltage: Operating valu e x 105% ±2%
Error calculation: Error = ((Maximum reset value − Minimum rese t value (over 10 resets))/2)/Average value
× 100%
Overvoltage: Measured when input suddenly changes from 70% to 120% of setting.
Undervoltage: Measured when input suddenly changes from 120% to 70% of setting.
The input voltage, however, must be between 70% and 125% of rating.
(The operating time when the operating time is set to the minimum value and the power supply suddenly
changes from 0% to 100%.)
Drift based on measured value at standard temperature:
−20°C to standard temperature: ±1,000 ppm/°C max.
Standard temperature to 60°C: ±1,000 ppm/°C max.
(Humidity: 25% to 80%)
Operating time
Fluctuation based on measured value at standard temperature:
−20°C to standard temperature: ±10% max.
Standard temperature to 60°C: ±10% max.
(Humidity: 25% to 80%)
Based on ambient humidity of 65%
25% to 80%: ±5% max.
Operating time
Based on ambient room humidity
25% to 80%: ±10% max.
Operating value ±5% max.
Operating time ±10% max.
Note: The error in the operating value and oper ating time under standard conditions.
Installation environment (Pollution Degree 2, Overvoltage Category III)
Between external terminals and case
Between input terminals and output 1 terminals
Between input terminals and output 2 terminals
Between output 1 terminals and output 2 terminals
Between external terminals and case
Between input terminals and output 1 terminals
Between input terminals and output 2 terminals
Between output 1 terminals and output 2 terminals
Square-wave noise of ±1 µs/100 ns pulse width with 1-ns rise time
Frequency 10 to 55 Hz, 0.35-mm single amplitude, acceleration 50 m/s
10 sweeps of 5 min each in X, Y, and Z directions
2
, 3 times each in 6 directions along three axes (up/down, left/right, forward/backward)
2
Cat. No. N146-E1-02 Three-phase Phase-sequence Phase-loss Relay K8AB-PM 3
Page 4
Connections
Flashing
Lit
Flashing
Lit
Overvoltage alarm indicator
Undervoltage setting value
Overvoltage
setting value
Undervoltage alarm indicator
Overvoltage relay
Undervoltage relay
Input
Hysteresis: Fixed at 5%
Hysteresis: Fixed at 5%
T: Operating time (0.1 to 30 s)
T: Operating time (0.1 to 30 s)
T1: Power ON lock (1 s or 5 s)
Phase loss operation
Phase sequence operation
Flashing Flashing
Input
Undervoltage alarm indicator
Undervoltage relay
L1
L3
L2
L3
L2
L1
L1
L2
L3
L1
L2
L3
T1
L1
L2
L3
T
T
Note: 1. The K8AB-PM output relay is normally operative.
2. The power ON lock prevents unnecessary alarms from being generated during the
instable period when the power is first turned on. There is no relay output during timer
operation.
3. Phase loss is detected by L1, L2, and L3 voltage drops.
A phase loss will exist if any of the phases drops below 60% of the rated input.
4. L1 and L2 function both as the power supply terminals and as input terminals. If the
voltage drops dramatically, then the Relay will not operate due to an undervoltage.
5. Phase loss on the power supply or load side cannot be detected in the motor load
during operation.
■ Wiring Diagram
Overvoltage/Undervoltage and Phase Sequence/Phase Loss Operation Diagram
L1N L2 L3
Voltage input
Signal output
Signal output
Load
L1
L2
L3
14
12
Overvoltage
24
22
Undervoltage
Phase loss,
reversed phase
N
11
21
Operation Indicators
Item Display Contact operation
Ry_LED Over_LED Under_LED Over_Ry Under_Ry
Overvoltage
Undervoltage
Phase
loss
Reversed
phase
Correct
phase
Note: 1. While phase loss is detected, Over_Ry will also be OFF.
ON ON OFF OFF ON
ON OFF ON ON OFF
OFF OFF (See
note 1.)
ON OFF
(See note
OFF
1.)
ON OFF Flashing
ON OFF
(See note
2.)
ON OFF OFF ON ON
2. The indicator flashes at 1-second intervals when reversed
phases are detected and at 0.5-second intervals during the
detection time.
4 Three-phase Phase-sequence Phase-loss Relay K8AB-PM Cat. No. N146-E1-02
Page 5
Nomenclature
■ Front
Terminal block
(See notes 1 and 2.)
Power indicator
Relay status indicator
Alarm indicator
Terminal block
(See notes 1 and 2.)
0.1
Overvoltage knob
(OVER)
Undervoltage knob
(UNDER)
Operating time knob (T)
Indicators
Power indicator
(PWR: Green)
Relay status indicator
(RY: Yellow)
Alarm
indicator
Note: The input across L1 and L2 is used for the internal power
Item Meaning
Overvoltage:
Red
Undervoltage:
Red
Lit when power is being supplied (see note).
Lit when relay is operating (normally lit).
Lit when there is an overvoltage.
The indicator flashes to indicate the error status after
the overvoltage has exceeded the threshold value
while the operating time is being clocked.
• L i t when there is an undervoltage or phase loss.
The indicator flashes to indicate the error status
after the undervoltage has exceeded the threshold
value while the operating time is being clocked.
• L i t when there is a phase sequence error.
supply . Therefore, the po wer indicator will not be lit if there is no
input across L1 and L2.
Setting Knobs
Item Usage
Overvoltage knob
(OVER)
Undervoltage knob
(UNDER)
Operating time knob (T) Used to set the operating time to 0.1 to 30 s.
Can be set between −30% and 25% of the rated
input.
Can be set between −30% and 25% of the rated
input.
Note: 1. Use either a solid wire of 2.5 mm2 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.
For 2.5 mm2 or
smaller solid wires
8 mm max. 8 mm max.
For ferrules with
insulating sleeves
Recommended ferrules
Phoenix Contact
• Al 1,5-8BK (for AWG16)
• Al 1-8RD (for AWG18)
• Al 0,75-8GY (for AWG18)
2. Tightening torque
Recommended: 0.49 N·m
Maximum: 0.54 N·m
Cat. No. N146-E1-02 Three-phase Phase-sequence Phase-loss Relay K8AB-PM 5
Page 6
■ Operation and Setting Methods
Connections
1. Input
Connect to L1, L2, and L3 (for three-phase three-wire mode) or L1, L2, L3, and N (for three-phase fourwire mode), depending on the mode selected using pin 2 on the DIP switch.
The Unit will not operate correctly if the DIP switch setting and the wiring do not agree.
Make sure the phase sequence is wired correctly. The Unit will not operate normally if the phase
sequence is incorrect.
2. Outputs
Terminals 11, 12, and 14 are the output terminals for overvoltage (SPDT).
Terminals 21, 22, and 24 are the output terminals for undervoltage, phase loss, and reversed phase
(SPDT).
L1NL2L3
Voltage input
Signal output
14
12
L1
L2
L3
Overvoltage
N
11
Signal output
Load
DIP Switch Settings
The power ON lock time, number of wires, and rated voltage are set using the DIP switch located on the bottom of the Unit.
DIP Switch Functions
ON
OFF
SW1
SW2
SW3
SW4
DIP switch
K8AB-PM1
SWITCH
Power ON lock
time
5 s --- --- --- ●
1 s --- --- --- ❍
Number of wires Three-phase, four-wire --- --- ● ---
Three-phase, three-wire --- --- ❍ ---
Rated voltage Three-phase,
three-wire
240 V 138 V ●●--- ---
230 V 133 V ●❍--- ---
220 V 127 V ❍●--- ---
200 V 115 V ❍❍--- ---
Note: All pins are set to OFF at the factory.
ON ● ↑
OFF ❍ ↓
Three-phase,
four-wire
ON
OFF
3
4
3
K8AB-PM2
SWITCH
ON ● ↑
ON
3
4
3
24
22
Undervoltage
Phase loss,
reversed phase
2 1
2 1
21
Power ON lock
time
OFF ❍ ↓
5 s --- --- --- ●
1 s --- --- --- ❍
OFF
Number of wires Three-phase, four-wire --- --- ● ---
Three-phase, three-wire --- --- ❍ ---
Rated voltage Three-phase,
three-wire
Three-phase,
four-wire
480 V 277 V ●●--- ---
415 V 240 V ●❍--- ---
400 V 230 V ❍●--- ---
380 V 220 V ❍❍--- ---
Note: All pins are set to OFF at the factory.
6 Three-phase Phase-sequence Phase-loss Relay K8AB-PM Cat. No. N146-E1-02
Page 7
lSetting Method
1. Overvoltage
The overvoltage knob (OVER) is used to set the overvoltage threshold.
The overvoltage can be set to between −30% and 25% of the rated input voltage.
Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the
same level.)
Use this as a guide to set the voltage.
The rated input depends on the model and DIP switch setting.
Example: K8AB-PM1 with Pin 2 Turned OFF (Three-phase, Three-wire Mode) and Pins 3 and 4 Turned OFF (Rated Voltage of 200 V)
2. Undervoltage
Undervoltage is set using the undervoltage knob (UNDER).
The undervoltage can be set to between −30% and 25% of the rated input.
Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the
same level.)
Use this as a guide to set the voltage.
The rated input depends on the model and DIP switch setting.
Example: K8AB-PM1 with Pin 2 Turned OFF (Three-phase, Three-wire Mode) and Pins 3 and 4 Turned OFF (Rated Voltage of 200 V)
3. Operating Time
The operating time is set using the operating time knob (T).
The operating time can be set to between 0.1 and 30 s.
Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the
same level.)
Use this as a guide to set the operating time.
If the input exceeds (or drops lower than) the voltage setting, the alarm indicator will start flashing for the set period and then stay lit.
The rated input voltage is 200 VAC and the setting range is 140 to 250 V.
The rated input voltage is 200 VAC and the setting range is 140 to 250 V.
Dimensions
Three-phase Voltage with Phase-sequence, Phase-loss Relays
K8AB-PM1
K8AB-PM2
22.5 100
(Unit: mm)
5
90
72
5
Cat. No. N146-E1-02 Three-phase Phase-sequence Phase-loss Relay K8AB-PM 7
Page 8
Safety Precautions
■ Precautions for Safe Use
Make sure to follow the instructions below to ensure safety.
1. Do not use or keep this product in the following environments.
• Outdoors, or places subject to direct sunlight or wearing
weather.
• Places where dust, iron powder, or corrosive gases (in
particular, sulfuric or ammonia gas) exist.
• Places subject to static electricity or inductive noise.
• Places where water or oil come in contact with the product.
2. Make sure to install this product in the correct direction.
3. There is a remote risk of electric shock. Do not touch terminals
while electricity is being supplied.
4. Make sure to thoroughly understand all instructions in the
Instructions Manual before handling this product.
5. Make sure to confirm terminal makings and polarity for correct
wiring.
6. Tighten terminal screws firmly using the following torque.
Recommended tightening torque: 0.49 N·m
Maximum tightening torque: 0.54 N·m max.
7. Operating ambient temperature and humidity for this product
must be within the indicated rating when using this product.
8. There is a remote risk of explosion. Do not use this product where
flammable or explosive gas exists.
9. Make sure that no weight rests on the product after installation.
10.To enable an operator to turn off this product easily, install
switches or circuit breakers that conform to relev ant requirements
of IEC60947-1 and IEC60947-3, and label them appropriately.
■ Precautions for Correct Use
For Proper Use
1. Do not use the product in the following locations.
• Places subject to radiant heat from heat generating devices.
• Places subject to vibrations or physical shocks.
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 or similar solvent for cleaning. Use commercial
alcohol.
4. When discarding, properly dispose of the product as industrial
waste.
5. Only use this product within a board whose structure allows no
possibility for fire to escape.
About Installation
1. When wiring, use only recommended crimp terminals.
2. Do not block areas around the product for proper dissipation of
heat. (If you do not secure space for heat dissipation, life cycle of
the product will be compromised.)
3. To avoid electrical shocks, mak e sure that power is not supplied to
the product while wiring.
4. To avoid electrical shocks, mak e sure that power is not supplied to
the product when performing DIP switch settings.
Noise Countermeasures
1. Do not install the product near devices generating strong high
frequency waves or surges.
2. When using a noise filter, check the voltage and current and
install it as close to the product as possible.
3. In order to prevent inductive noise, wire the lines connected to the
product separately from power lines carrying high voltages or
currents. Do not wire in parallel with or on the same cable as
power lines.
Other measures for reducing noise include running lines along
separate ducts and using shield lines.
To avoid faulty operations,
malfunctions, or failure, observe the
following operating instructions.
1. When turning on the power, make sure to realize rated voltage
within 1 second from the time of first supply of electricity.
2. Make sure to use power supply for operations, inputs, and
transformer with the appropriate capacity and rated burden.
3. Maintenance and handling of this product may only be performed
by qualified personnel.
4. Distortion ratio of input wave forms must be 30% or less. Use of
this product with circuits that have large distortion in wave forms
may result in unwanted operations.
5. Using this product for thyristor controls or inverters will result in
errors.
6. When setting the volume, adjust the control from the minimum
side to the maximum side.
8 Three-phase Phase-sequence Phase-loss Relay K8AB-PM Cat. No. N146-E1-02
Page 9
Questions and Answers
Checking Operation
Q
Overvoltages
Gradually increase the input from 80% of the setting.
The input value will equal the operating value when the
input exceeds the setting and the alarm indicator starts
flashing. Operation can be checked by the rela y output that
will start after the operating time has passed.
Undervoltage
Gradually decrease the input from 120% of the setting and
check the operation using the same method as for
overvoltage.
Example: For monitoring mode set to three-phase three-wire
monitoring, a rated voltage of 200 V, and an operating time
of 5 s.
Note: K8AB-PM@ output relays are normally operative.
Operating set value
Input voltage
Alarm indicator
Relay output
Flashing
5 s
Lit
Connection Diagram 1
L1
L2
L3
L1
L2
L3
3φ,
200 VAC
V1
V2 V3
0 to 150 V
Three-phase variable
autotransformer
Overvoltage
Undervoltage
How to Measure the Operating Time
Q
Overvoltage
Change the input suddenly from 0% to 120% of the set
value and measure the time until the Unit operates.
Undervoltage
Change the input suddenly from 120% to 0% of the set
value and measure the time until the Unit operates.
Operating Time
Adjust the slide resistor so that the voltage applied to the
K8AB terminals is 120% of the set value (for overvoltage
detection) and 80% of the set value (for undervoltage
detection) when the auxiliary relay operates, as shown in
connection diagram 2. Close the switch and use the cycle
counter to measure the operating time.
Connection Diagram 2
3φ, 200 VAC
L1
X/a
X
L2
L3
±
C 200 V
Cycle counter
Checking the Phase Sequence and Phase Loss
Q
Operation
R1
R2
R1: Slide resistor
R2: 100 Ω 400 W
Phase Sequence
Switch the wiring, as shown by the dotted lines in
connection diagram 1, to reverse the phase sequence and
check that the K8AB operates.
Phase loss
Create a phase loss for any input phase and check that the
K8AB operates.
V1
V2 V3
X/b
200 Ω 200 W
L1
L2
L3
Operating Adjustment Knobs
Q
Use a screwdriver to turn the knobs. There is a stopper to
prevent the knob from turning any further once it has been
turned completely to the left or right. Do not force the knob
past these limits.
Cat. No. N146-E1-02 Three-phase Phase-sequence Phase-loss Relay K8AB-PM 9
Page 10
Questions and Answers
Load-side Phase Loss
Q
In principle, phase loss cannot be detected on the load side
because the K8AB-PM@ measures three-phase voltage to
determine phase loss.
Motor Load Phase Loss during Operation
Q
Motor load phase loss cannot be detected during operation.
It can be used to detect phase loss at startup.
Normally, three-phase motors will continue to rotate even if
one phase is open. The three-phase voltage will be induced
at the motor terminals. The diagram shows voltage induction
at the motor terminals when phase R has been lost with a
load applied to a three-phase motor. The horizontal axis
shows the motor load as a percentage of the rated load, and
the vertical axis shows voltage as a percentage of the rated
voltage. The lines in the graph show the voltage induced at
the motor terminals for each load phase loss occurs during
operation. As the graph shows, phase loss cannot be
detected because the motor terminal voltage does not drop
very much even if a phase is lost when the load on the motor
is light. To detect motor load phase loss during operation,
use the undervoltage detection function to detect the motor
terminal voltages at phase loss.
Set the operating time carefully because it will affect the time
from when the phase loss occurs until tripping when this
function is used.
Overvoltage Detection When Only One Phase Exceeds
Q
the Overvoltage Threshold
The K8AB-PM@ monitors each of the three-phase voltages.
This means an overvoltage is detected if even only one
phase exceeds the threshold value. The same applies to
undervoltages.
Characteristic Curve Diagram
Note: This characteristic curve shows the approximate
values only.
100
95
90
85
80
75
70
65
60
55
Voltage (as a percentage of rated voltage)
50
45
100 2030405060708090100110
Motor load (as a percentage of rated load)
Note: For phase loss of phase R. V
terminal voltage at phase loss.
V
ST
VTR
VRS
, VTR, and VRS indicate the motor
ST
10 Three-phase Phase-sequence Phase-loss Relay K8AB-PM Cat. No. N146-E1-02
Page 11
Cat. No. N146-E1-02 Three-phase Phase-sequence Phase-loss Relay K8AB-PM 11
Page 12
Warranty and Application Considerations
Read and Understand this Catalog
Please read and understand this catalog be fore purchasing the products. Plea se consul t your OMRON representative i f you have any
questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warra nty is that the prod ucts are free from defects in materials and workmanship f or a period of one yea r (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 PAR TICULAR PURPOSE OF THE PRODUCTS . ANY BUYER OR USER ACKNOWLEDGES
THAT THE BUYER OR USER ALONE HAS D ETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS
OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMIT ATIONS 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,
W
ARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
I
n no event shall the responsibility of OMRON for any act exceed the individual price of t he 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 stan dards, 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 f or 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 PR OPERTY 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
Perf ormance data giv en in this catal og is pro v ided as a guide for the user in determining suitability and does not constitut e 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.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
OMRON Corporation Industrial Automation Company
Tokyo, JAPAN
Authorized Distributor:
Contact: www.ia.omron.com
Regional Headquarters
OMRON EUROPE B.V.
Wegalaan 67-69-2132 JD Hoofddorp
The Netherlands
Tel: (31)2356-81-300/Fax: (31)2356-81-388
OMRON ASIA PACIFIC PTE. LTD.
No. 438A Alexandra Road # 05-05/08 (Lobby 2),
Alexandra Technopark,
Singapore 119967
Tel: (65) 6835-3011/Fax: (65) 6835-2711
OMRON ELECTRONICS LLC
One Commerce Drive Schaumburg,
IL 60173-5302 U.S.A.
Tel: (1) 847-843-7900/Fax: (1) 847-843-7787
OMRON (CHINA) CO., LTD.
Room 2211, Bank of China Tower,
200 Yin Cheng Zhong Road,
PuDong New Area, Shanghai, 200120, China
Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200
© OMRON Corporation 2009 All Rights Reserved.
In the interest of product improvement,
specifications are subject to change without notice.
CSM_1_5_0114
Cat. No. N146-E1-02
Printed in Japan
0706-0.7M (0505) (C)
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