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K8DT-PM

10

1.

 Do not use or store the product in the following locations.

Locations subject to water, or oil

Outdoor locations or under direct sunlight

Locations subject to dust or corrosive gases (sulfurizing gases, 
ammonia gases, etc.)

Locations subject to rapid temperature changes

Locations prone to icing and dew condensation

Locations subject to vibration and large shocks

Locations subject to wind and rain

Locations subject to static electricity or noise

Locations subject to insects or small animals

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.

Check terminal polarity when wiring and wire all connections 
correctly. 

4.

Do not wire the input and output terminals incorrectly.

5.

Make sure the power supply voltage and loads are within the 
specifications and ratings for the product.

6.

Make sure the ferrule terminals for wiring are of the specified size.

7.

The stripping length is 8 mm. Insert the wires all the way to the 
back.

8.

Do not connect anything to terminals that are not being used.

9.

Use a power supply that will reach the rated voltage within 1 
second after the power is turned ON.

10.

Keep wiring separate from high voltages and power lines that draw 
large currents. Do not place product wiring in parallel with or in the 
same path as high-voltage or high-current lines.

11.

Do not install the product near equipment that generates high 
frequencies or surges.

12.

The product may cause incoming radio wave interference. Do not 
use the product near radio wave receivers.

13.

Install an external switch or circuit breaker and label it clearly so 
that the operator can quickly turn OFF the power supply.

14.

Make sure the indicators operate correctly. Depending on the 
application environment, the indicators may deteriorate 
prematurely and become difficult to see.

15.

Do not use the product if it is accidentally dropped. The internal 
components may be damaged.

16.

Be sure you understand the contents of this catalog and handle 
the product according to the instructions provided.

17.

Do not install the product in any way that would place a load on it.

18.

When discarding the product, properly dispose of it as industrial 
waste.

19.

The product must be handled only by trained electrician.

20.

Prior to operation, check the wiring before you supply power to the 
product.

21.

Do not install the product immediately next to heat sources.

22.

Perform periodic maintenance.

23.

Do not wire anything to the release holes.

24.

When you insert a flat-blade screwdriver into a release hole, do not 
tilt or twist the screwdriver. The terminal block may be damaged.

25.

Insert a flat-blade screwdriver into the release holes at an angle. 
The terminal block may be damaged if the screwdriver is inserted 
straight in.

26.

Do not allow the flat-blade screwdriver to fall when you are holding 
it in a release hole.

27.

Do not bend a wire past its natural bending radius or pull in it with 
excessive force. Doing so may break the wires.

28.

Do not insert more than one wire into each terminal insertion hole.

29.

To prevent wire materials from smoking or igniting, use the wiring 
materials given in the following table.

Note:

Please use Ferrules with UL certification (R/C).

30.

Use only the specified wires for wiring.

31.

When wiring the terminals, allow some leeway in the wire length.

32.

Make sure that the power supply is turned OFF before you change 
any DIP switch setting.

Observe the following operating methods to 
prevent failure and malfunction.

1.

Use the power supply voltage, input power, and other power 
supplies and converters with suitable capacities and rated outputs.

2.

The distortion in the input waveform must be 30% max. If the input 
waveform is distorted beyond this level, it may cause unnecessary 
operation.

3.

The product cannot be used for thyristor control or on the 
secondary side of an inverter. To use this product on the primary 
side of an inverter, install a noise filter on the primary side of the 
inverter.

4.

Phase loss is detected only when the power supply to the motor is 
turned ON. Phase loss during motor operation is not detected.

5.

Phase loss can be detected only from the input contacts to the 
power supply side. Phase loss cannot be detected from the input 
contacts to the load side.

6.

When cleaning the product, do not use thinners or solvents. Use 
commercial alcohol.

7.

If you use stranded wires, make sure that there are no loose wire 
strands.

8.

If you wire crossovers and connect terminal blocks in parallel, a 
large current will flow. Make sure that the current does not exceed 
10 A.

9.

The terminal block may be damaged if the recommended tool is 
not used. Use the recommended flat-blade screwdriver to operate 
the release holes.

Correct Mounting Direction, Mounting, and 
Removing

Mounting to DIN Track

To mount the Relay to a DIN Track, hook the Relay onto the DIN 
Track and press the Relay in the direction of the arrow until you hear 
it lock into place.

Removing from the DIN Track

To remove the Relay, insert a screwdriver into the hook on the top or 
bottom and pull out the hook to release the Relay.

• Leave at least 30 mm of space between the product and other 

devices to allow easy installation and removal.

Precautions for Safe Use

Recommended wire

Stripping length

With Ferrules

Without 

Ferrules

0.25 to 1.5mm

2

/Equivalent to AWG24 to 16

10 mm

8 mm

Precautions for Correct Use

(2)

(1)

PFP-100N (100 cm)
PFP-50N (50 cm)

Applicable DIN Tracks

30 mm min.

Summary of Contents for K8DT-PM

Page 1: ...h America Certification is pending for LR standards Models added with transistor outputs for superior contact reliability RoHS compliant Ordering Information Three phase Voltage and Phase sequence Pha...

Page 2: ...bient operating humidity 25 to 85 RH with no condensation Storage humidity 25 to 85 RH with no condensation Altitude 2 000 m max Applicable wires Stranded wires solid wires or ferrules Applicable wire...

Page 3: ...nd after an incorrect phase is detected and once per 0 5 second during the detection time K8DT PM1 C N L1 14 L2 11 12 L3 DIP SW Inside Inside 2 Output C Relay Output T Transistor Output 14 11 12 14 11...

Page 4: ...ck See Note Terminal block See Note Power indicator Output status indicator Overvoltage knob OVER Undervoltage knob UNDR Operating time knob T Alarm indicator 8 mm 8 mm Solid Wire 8 mm Stranded Wires...

Page 5: ...R The undervoltage can be set to between 30 and 30 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 ha...

Page 6: ...0 Three phase Voltage and Phase sequence Phase loss Relays K8DT PM1 K8DT PM2 Options Order Separately Front Cover Y92A D1A 52 7 3 5 1 8 17 5 5 85 DIN Tracks PFP 100N PFP 50N Dimensions in parentheses...

Page 7: ...rminals is 120 of the set value for overvoltage detection or 80 of the set value for undervoltage detection when the auxiliary relay in connection diagram 2 operates Close the switch and use a cycle c...

Page 8: ...tected 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 dete...

Page 9: ...alarm outputs may fail to operate This may result in physical damage to the facilities equipment or other devices that are connected to it To reduce this risk inspect the Relay regularly To maintain s...

Page 10: ...e terminal block may be damaged 25 Insert a flat blade screwdriver into the release holes at an angle The terminal block may be damaged if the screwdriver is inserted straight in 26 Do not allow the f...

Page 11: ...rom the release hole Checking Connections After the insertion pull gently on the wire to make sure that it will not come off and the wire is securely fastened to the terminal block To prevent short ci...

Page 12: ...maximum applied voltage for the clearance solid insulation and other factors There is basic insulation between the input terminals and output terminals Operating section must have reinforced or doubl...

Page 13: ...CONNECTED WITH THE PRODUCTS WHETHER SUCH CLAIM IS BASED IN CONTRACT WARRANTY NEGLIGENCE OR STRICT LIABILITY Further in no event shall liability of Omron Companies exceed the individual price of the Pr...

Page 14: ...IL 60169 U S A Tel 1 847 843 7900 Fax 1 847 843 7787 Regional Headquarters OMRON EUROPE B V Wegalaan 67 69 2132 JD Hoofddorp The Netherlands Tel 31 2356 81 300 Fax 31 2356 81 388 Contact www ia omron...

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