Datasheet

ST
3
ds_61108_0000_en_st: 091006D
DIMENSIONS
mm inch
REFERENCE DATA
General tolerance: ±0.2 ±.008
31.0
1.220
11.0
.433
7.62
.300
7.62
.300
10.16
.400
85
4321
76
10.16
.400
14
.551
0.3
.012
3.5 .138
PC board pattern
(Copper-side view)
Tolerance: ±0.1 ±.004
2 coil latching
types only.
8-DIA. 1.4
.055
2.54
.100
2.54
.100
Single side stable
1a1b 2a
(Deenergized condition)
14
5678
–+
14
5678
–+
2 coil latching
1a1b
12
5678
–+
34
+–
(Reset condition)
Diagram shows the “reset” position when terminals 3 and 4 are
energized. Energize terminals 1 and 2 to transfer contacts.
2a
12
–+
34
+–
5678
1 coil latching
1a1b 2a
(Reset condition)
14
5678
+
-
14
5678
+
-
Diagrams show the "reset" position when
terminals 1 and 4 are energized.
Schematics (Bottom view)
1. Max. switching power 2. Life curve 3. Coil temperature rise
Sample: ST1-DC24V
10 20 50 100 200 300
0.1
0.2
0.5
1
2
5
10
Voltage, V
Current, A
AC resistive load
DC resistive load
inductive load
AC
(cosϕ =0.4)
10
20
50
100
200
500
1,000
12345678910
Current, A
Life, 10 k operations
AC 250 V, 125 V resistive load
AC 250 V, 125 V inductive load
(Pf = 0.4)
0.1 0.2 0.3 0.4 0.5
60
50
40
30
20
10
0
Temperature rise, °C
Coil operating power, W
5 A
0 A
Contact current
8 A
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.
Rated of change, %
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 1.82.0 2.2 2.4
10
20
30
40
50
60
70
80
90
100
110
120
Max. temperature, °C
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 5.07.09.0
10 A
m = 3.9
η = 16.8×10
4
ρ
0.95
= 7.7×10
4
8 A
m = 3.5
η = 3.3×10
5
ρ
0.95
= 1.4×10
5
No. of operations, ×10
5
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
.
.