DM87

industrial relays

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Page 4 of 5

Fig. 7

n

n

10

10

10

0

0

0

0.6

0.8

1.0

1.2

1.4

1.6

1.8

20

20

20

30

30

30

40

40

40

50

50

50

60

60

60

70

70

70

80

80

80

90

90

90

100

100

100

Description of Fig. 5, 6 and 7

A

B

1, 2, 3

1

2

3

- relations between make voltage and ambient temperature at

no load on contacts. Coil temperature and ambient temperature

are equal before coil energizing. Make voltage is not higher than

the value read on Y axis (multiplication of rated voltage).

- relations between make voltage and ambient temperature

after initial coil heating up with 1,1 U , at continues load of I on

contacts. Make voltage is not higher than the value read on Y

axis (multiplication of rated voltage).

- values on Y axis represent allowed overvoltage on coil at

certain ambient temperature and contact load:

- no load

- 50% of rated load

- rated load

nn

10

20

30

30

40

40

50

50

100

100

200

200

300

300

0.1

0.5

1

2

5

8

10

50

50

12

10

5

2

1

0.5

0.1

10

3.0

3.0

2.8

2.8

2.6

2.6

2.4

2.4

2.2

2.2

2.0

2.0

1.8

1.8

1.6

1.6

1.4

1.4

1.2

1.2

1.0

1.0

0.8

0.8

0.6

0.6

20

Coil operating range - AC 50 Hz

Fig. 3

DC voltage [V]

DC voltage [V]

Max. DC resistive load breaking capacity

- standard version

Max. DC resistive load breaking capacity

- sensitive version

Fig. 4

Coil operating range - DC

- standard version

Fig. 5

Coil operating range - DC

- sensitive version

Fig. 6