NAIS ST2-L2-DC9V, ST2-L2-DC6V, ST2-L2-DC5V, ST2-L2-DC48V, ST2-L2-DC3V Datasheet

VDE

2 ×

3 ×

×

IC DRIVABLE PC BOARD
RELAY FOR FIELD LOAD

ST-RELAYS

SWITCHING

31

1.220

14

.551

11.3

.445

FEATURES

• Sealed to meet the combination pro­cess of automatic wave soldering
and cleaning needs

• Latching types available

mm inch

SPECIFICATIONS

Contacts

Arrangement
Contact material Gold flash over silver alloy

Initial contact resistance, max. 30 m Ω
Rating

(resistive)

Max. switching power 2,000 VA, 150 W
Max. switching voltage 380 V AC, 30 V DC
Max. switching current 8 A

HP rating 1/4 HP 125, 250 V AC
Inrush current capability

Mechanical (at 180 cpm) 10

Expected
life (min.
operations)

Electrical

8 A 250 V AC (resistive)
5 A 30 V DC (resistive)

3 A 100 V AC (lamp)
1 A 100 V AC (lamp)

Coil (polarized) (at 25 ° C 77 ° F)

Single side stable Nominal operating power Approx. 240 mW
Latching Nominal set and reset power Approx. 240 mW

Remarks

* Specifications will vary with foreign standards certification ratings.

1

Measurement at same location as "Initial breakdown voltage" section

*

2

*

Detection current: 10 mA

3

Wave is standard shock voltage of ± 1.2 × 50 µ s according to JEC-212-1981

*

4

*

Excluding contact bounce time

5

Half-wave pulse of sine wave: 11ms; detection time: 10 µ s

*

6

*

Half-wave pulse of sine wave: 6ms

7

*

Detection time: 10 µ s

8

Refer to 5. Conditions for operation, transport and storage mentioned in

*

AMBIENT ENVIRONMENT (Page 61).

1 Form A
1 Form B

2 Form A

51 A (TV-3 equivalence) for 1a1b

35 A (TV-1 equivalence) for 2a

7

5

10

5

10

4

10

—3

—

10

4

• High switching capacity and high
sensitivity in subminiature size
150 mW pick-up, 8 A inrush capacity:
51 A for 1a1b, 35 A for 2a

• High shock and vibration resistance
Shock: 20 G, Vibration: 10 to 55 Hz at
double amplitude of 2 mm

Characteristics (at 25 ° C 77 ° F 50% Relative humidity)

Max. operating speed
Initial insulation resistance*

Initial
breakdown
voltage*

Surge voltage between coil and
contact*

Operate time*

Between contact sets

Between open contacts

2

Between contacts and coil

3

4

1

(at nominal voltage)
Release time (without diode)*

4

(at nominal voltage)
Set time*

4

(latching)

(at nominal voltage)
Reset time*

4

(latching)

(at nominal voltage)
Temperature rise

(at 60 ° C)
Shock

resistance

Vibration
resistance

Conditions for operation,
transport and storage*
(Not freezing and condens­ing at low temperature)

Functional*
Destructive*

Functional*

Destructive
Ambient

8

temp.
Humidity 5 to 85% R.H.

5

6

7

Unit weight Approx. 10g .353 oz

20 cpm (at rated load)

1,000 M Ω (at 500 V DC)

2,000 Vrms
1,200 Vrms
3,750 Vrms

Min. 6,000 V

Max. 15 ms (Approx. 10 ms)

Max. 10 ms (Approx. 8 ms)

Max. 10 ms (Approx. 8 ms)

Max. 10 ms (Approx. 8 ms)

Max. 55 ° C with nominal coil voltage

and at 8 A switching current

Min. 196 m/s

Min. 980 m/s

117.6 m/s

2

{20 G}

2

{100 G}

2

{12 G}, 10 to 55 Hz

at double amplitude of 2 mm

176.4 m/s

2

{18 G}, 10 to 55 Hz

at double amplitude of 3 mm

–40 ° C to +60 ° C

–40 ° Fto +140 ° F

TYPICAL APPLICATIONS

Sequence controllers, facsimiles, telephone controls, remote
control security devices and security equipment.

ORDERING INFORMATION

Ex. ST

Contact arrangement

1: 1 Form A 1 Form B
2: 2 Form A

1 L2 DC48V

Operating function Coil voltage

Nil: Single side stable
L2: 2 coil latching

(Note) Standard packing: Carton; 50 pcs., Case; 500 pcs.

DC 3, 5, 6, 9, 12,

24, 48 V

249

Ω ( ±

Ω ( ±

ST

TYPES AND COIL DATA (at 20 ° C 68 ° F)

Single side stable

1 Form A
1 Form B

Part No.

2 Form A

Nominal

voltage,

V DC

Pick-up voltage,

V DC (max.)

Drop-out

voltage,

V DC (min.)

ST1-DC3V ST2-DC3V 3 2.4 0.3 4.5 38 75
ST1-DC5V ST2-DC5V 5 4.0 0.5 7.5 105 47
ST1-DC6V ST2-DC6V 6 4.8 0.6 9.0 150 40
ST1-DC9V ST2-DC9V 9 7.2 0.9 13.5 360 25
ST1-DC12V ST2-DC12V 12 9.6 1.2 18.0 600 20
ST1-DC24V ST2-DC24V 24 19.2 2.4 36.0 2,400 10
ST1-DC48V ST2-DC48V 48 38.4 4.8 72.0 9,000 4.7

2 coil latching

Part No.

1 Form A
1 Form B

2 Form A

ST1-L2-DC3V ST2-L2-DC3V 3 2.4 4.5 40 75
ST1-L2-DC5V ST2-L2-DC5V 5 4.0 7.5 110 47
ST1-L2-DC6V ST2-L2-DC6V 6 4.8 9.0 155 37.5
ST1-L2-DC9V ST2-L2-DC9V 9 7.2 13.5 360 25
ST1-L2-DC12V ST2-L2-DC12V 12 9.6 18.0 640 18.8
ST1-L2-DC24V ST2-L2-DC24V 24 19.2 36.0 2,400 9.8
ST1-L2-DC48V ST2-L2-DC48V 48 38.4 72.0 10,200 4.7

Nominal

voltage,

V DC

Set and reset

voltage,

V DC (max.)

Maximum allowable voltage,

V DC (60 ° C

DIMENSIONS

Maximum

allowable voltage,

V DC (60 ° C 140°F)

140°F

)

Coil resistance,

10%)

Coil resistance,

10%)

Nominal

operating

current, mA

Nominal

operating

current, mA

mm inch

31.0

1.220

11.0

.433

0.3

.012

3.5 .138

7.62

.300

85

10.16

.400

76

7.62

.300

4321

General tolerance: ± 0.2 ± .008

14

.551

10.16

.400

PC board pattern

(Copper-side view)

2 coil latching
types only.

8-DIA. 1.4

.055

Tolerance: ± 0.1 ± .004

2.54

.100

2.54

.100

Schematic (Bottom view)

Single side stable

1a1b 2a

14

–+

5678

(Deenergized condition)

2 coil latching

1a1b

12

–+

34

+–

5678

(Reset condition)

Diagram shows the "reset" po­sition when terminals 3 and 4
are energized. Energize termi­nals 1 and 2 to transfer con­tacts.

REFERENCE DATA

1. Max. switching power 2. Life curve 3. Coil temperature rise

1,000

500

200

100

50

Life, 10 k operations

20
10

AC 250 V, 125 V resistive load

AC 250 V, 125 V inductive load

12345678910

Current, A

(Pf = 0.4)

10

5

2
1

Current, A

0.5

0.2

0.1

AC resistive load

AC

inductive load

(cosϕ =0.4)

DC resistive load

10 20 50 100 200 300

Voltage, V

Sample: ST1-DC24V

60

50

40

30

Temperature rise, °C

20

10

0

0.1 0.2 0.3 0.4 0.5
Coil operating power, W

14

–+

5678

2a

12–+34

Diagram shows the "reset" po­sition when terminals 3 and 4
are energized. Energize termi­nals 1 and 2 to transfer con­tacts.

Contact current

8 A
5 A
0 A

+–

5678

250