20

MY(S)

Engineering Data

MY2K

Maximum Switching Capacity

Endurance Curve

MY2K 100 VAC

MY2K 24 VDC

Malfunctioning Shock

Magnetic Interference

(External Magnetic Field)

Latching Deterioration Over

Time

DC inductive load

(L/R = 7 ms)

DC resistive load

AC resistive load

AC inductive load

(cos φ = 0.4)

10

0.1

0.5

1

5

5

10

50

100

500

Contact voltage (V)

30 VDC resistive load

110 VAC resistive load

220 VAC resistive load

10

50

100

500

01

2

3

Contact current (A)

30 VDC inductive load

(L/R = 7 ms)

110 VAC inductive load

(cos φ = 0.4)

220 VAC

inductive load

(cos φ = 0.4)

10

1

50

100

500

0

0.5

1.5

Contact current (A)

Energized

Not energized Y

X

Z’

X’

Z

Y’

900

1000

1000

400

400

800

700

400

400

1000

350

900

1000

300

1000

Unit: m/s2

Armature deviation

when set

N = 20

Measurement: Shock was applied 2

times each in 6 directions along 3

axes with the Relay energized and not

energized to check the shock values

that cause the Relay to malfunction.

Criteria: Non-energized: 200 m/s2

Energized: 200 m/s2

Reset voltage

Set voltage

Uniform magnetic field strength (0e)

(Average values)

S

NS

N

80

80

60

60

40

20

−20

−40

−60

40

80

60

−80

N = 5

Measurement: The percentage of change in the operating and

release voltages in a uniform external magnetic field

were measured (worst magnetic field direction).

40

Average value

60

90

80

70

100

0 50

100

300 500 1,000

5,000 10,000

Elapsed time (h)

N = 24

Measurement: The rate of deterioration in latching ability was

measured over time with the Relay left at a normal temperature

(20 to 30°C) after latching by applying the rated voltage.

Dimensions

(Unit: mm)

28 max.

6.3

2.6

0.5

21.5 max.

0.5

36 max.

6.4

Ten, 1.2-dia. × 2.2 oval holes

Relays with Plug-in Terminals or Soldered Terminals

MY2K

Terminal Arrangement/Internal

Connections (Bottom View)

For AC

Note: R is a resistor for ampere-turn correction. This resistor is

built-in to 50-VAC and higher models.

(The coil has no polarity.)

Safety Precautions

• For applications that use a 200 VAC power supply, connect external resistors Rs and Rr to a 100 VAC Relay.

• Do not apply a voltage to the set and reset coils at the same time. If you apply the rated voltage to both coils

simultaneously, the Relay will be set.

• The minimum pulse width in the performance column is the value for the following measurement conditions: an ambient

temperature of 23° C with the rated operating voltage applied to the coil. The performance values given here may not be

satisfied due to use over time and a reduction in latching performance due to changes in the ambient temperature or in

the conditions of the application circuit.

For actual use, apply the rated operating voltage with a pulse width based on the actual load and reset the Relay at least

once per year to prevent degradation over time.

• If the Relay is used in an environment with strong magnetic fields, the surrounding magnetic field can demagnetize the

magnetic body and cause unintended operation. Therefore, do not use these Relays in environments with strong

magnetic fields.

Relay Replacement

To replace the Relay, turn OFF the power supply to the load and Relay coil sides to prevent unintended operation and possible electrical shock.

Applicable Sockets

Use only combinations of OMRON Relays and Sockets.

14

Rr

Rs

Rs: 7.3 k

Ω, 3 W min.

Rr: 14.3 k

Ω, 1 W min.

Reset power supply

Set power supply

13

910

11

12

58

14