ST

251

4. Influence of adjacent mounting

Sample: ST1-DC24V

5. Max. ambient temperature by operating

power

6. Contact reliability

(1)

(2)

(3)

(1) & (3) relays are energized.

Inter-relay distance, mm

5

101520

–20

–10

0

10

20

Drop-out

Pick-up

0

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4

10

20

30

40

50

60

70

80

90

100

110

120

Operating power, mW

No load

8 A carrying

250 V AC

0.1

0.2 0.3 0.5 0.7 0.9

0.4 0.6 0.8 1.0

2.0 3.0 5.07.0 9.0

10 A

m = 3.9

ρ

4

8 A

m = 3.5

ρ

5

No. of operations,

0.1

0.15

0.3

0.4

0.5

1.0

0.2

2.0

3.0

4.0

5.0

1.5

10.0

15.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

95.0

99.0

99.8

99.9

25.0

(%)

ST-Relay

250 V AC cos

ϕ = 1.0

0.33 Hz

.

.

ST relay socket

ST-SS

Solder terminal socket

ST-PS

PC board terminal socket

Specifications

Breakdown voltage

4,000 Vrms Coil/Contacts

2,000 Vrms Contacts/Contacts

Insulation resistance

More than 1,000 M

Ω between terminals

Heat resistance

150

Max. continuous current

10 A

Relay insertion life

15 times

DIMENSIONS

ST-PS

ST-SS

31.6

1.244

35.4

1.394

16.6

.654

8

1

7

2

6

3

5

4

14.6

.575

16.4

.646

10.16

.400

1.05

.041

0.3

.012

5.5

.217

4

.158

4.3

.169

0.27

.011

10.16

.400

7.62

.300

7.62

.300

31.6

1.244

35.4

1.394

16.6

.654

8

1

7

2

6

3

5

4

14.6

.575

16.4

.646

10.16

.400

2.3

.090

0.3

.012

5.5

.217

4

.158

5.3

.209

0.27

.011

10.16

.400

7.62

.300

7.62

.300

Precautions for use (socket)

1. PC board mounting method

PC board pattern

The terminal configuration is symmetrical

is stamped on the socket to prevent mis-

insertion. We recommend printing the

mounting side (side opposite from pat-

tern) of the PC board. In this case, the ter-

minal configuration becomes the terminal

nos. noted near the drilling holes.

2. Chassis cutout

Chassis cutting dimensions

2.54

.100

8-1.5 DIA.

8-.060 DIA.

87

6

5

12

3

4

2.54

.100

Contact

terminal

interval

Coil

terminal

interval

15.0

±0.2

.591

±.008

32.5

±0.1

1.280

±.004

If the chassis hole is punched with a

press, set so the release R on the front

side (A side).

The range for chassis thickness is 0.6 to

3. Relay mounting and removal

(1) Align the directions of the relay and socket.

Claw for chassis

fastening

Chassis t = 0.6 to 2.2

.024 to .087

Press

A side

Relay

(2) Insert the relay all the way in, so it is secure-

ly in place.

(3) Press the part indicated by A in the B direc-

tion, and fasten by placing the hook on the re-

lay.

(4). When removing the relay, completely re-

lease the hooks on both sides and pull the relay

out.

Hinge

mechanism

Relay case

cross-section

B

(Fastening complete)

(Before fastening)

A

For Cautions for Use, see Relay Technical Information (Page 48 to 76).

9/1/2000

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