SIR 4 Series
Relay Key Data
- PCB Relay with forcibly guided contacts
- Protective separation between coil/control contacts
(>10mm) as well as protective separation between the
output contacts themselves (>8mm)
- EN50205 type A
- Contact mounting: SIR312
3NO / 1NC
SIR222
2NO / 2NC
- Small external dimensions
- Mean coil power 0.6W
- Holding coil power 0.18W
- Coils for railway applications (EN 50155) on request
Circuit Diagram (view on relay upper side)
Contact Lifetime
10000
AC 1:230V
AC 15: 230V
DC 1: 24V
33 43
34 44
12 23
11 24
33 43
34 44
12 22
11 21
Operations x 1000
1000
100
DC 13: 24V
SIR312
A1
Insulation Data
SIR222
A2
A1
A2
Dimensions
46.4
16
10
0.1
0.5
1.0
Switching Current (A)
5.0
10
0.4
1.9
21
5 10.5 5
3
3
1
10
[mm]
3
Ø 1.3
21
5 10.5 5
3
1.9
Contact Data
Contact material
AgSnO
2
+0.2μm Au
Type of contact
Crest contact
Rated switching capacity
250VAC 10A AC1 2‘500VA
Electr. life AC 1(360 cycles/h)
approx.100‘000
Inrush current max.
25A for 20ms
Switching voltage range
5 to 250 VDC/VAC
Switching current range*
10mA to 10A
Switching capacity range*
60mW to 2‘500W(VA)
Contact resistance (as delivered)
≤100mΩ/6V/100mA
*Guided values
Operations x 1000
- Basic insulation
at 250VAC
- Air and creepage distance
>4mm
- Test voltage
2‘500V/50Hz/1min
- Double or reinforced insulation
at 250VAC
- Air and creepage distance
>8mm
- Test voltage
4‘000V/50Hz/1min
- Double or reinforced insulation
at 250VAC
- Air and creepage distance
>10mm
- Test voltage
5‘000V/50Hz/1min
Test voltage contact oopen
1‘500V/50Hz/1min
CTI 250
Creepage resistance
Pollution degree
2
Overvoltage category
III
Insulation resistance at Up 500VDC
>100MΩ
Maximal switching characteristics (DIN EN60947-5-1,
Tab. C2)
AC 15:
230V / 5A
DC 13:
24V / 7.5A / 0.1Hz
UL 508:
C600 / R300
Maximal contact load at AC 1 with 230V:
2 contacts with 10A each
3 contacts with 8.4A each
30.7
2.9
0.7
3 10 3
Load Limit Curve with Direct Current
10
8
6
4
3
2
1
0.8
0.6
0.4
0.3
0.2
1
2
Additional Data
Mechanical endurance
Switching frequency, mechanical
Response time (all NO closed)
Drop-out time** (all NC closed)
Bounce time of NO contact
Bounce time of NC contact
Shock resistance 16ms
>10x10
6
operations
15Hz
typically 15ms
typically 4ms
typically 6ms
typically 12ms
NO > 10g
NC > 6g
NO > 5g
NC > 1.5g
0.1
50
100
0
Switching Current (A)
1) Inductive load L/R 40ms
2) Resistive load
150
200
250
Standard coils for direct current
(other voltages on request)
Min. pick-up voltage
at 20 °C
Drop-out voltage at
20 °C
Resistance in Ohm
at 20 °C
Nominal voltage
VDC
Nominal current
in mA
Vibration resistance
(10-200Hz)
Resistance to short circuiting contacts
1‘000A SCPD 10A gG/gL (pre-fuse)
-40°C to +70°C
Ambient temperature
Thermal resistance
55K/W
Temperature limit for coil
120°C
Weight
ca. 30g
any
Mounting position
Type of protection
RT II
Solder bath temperature
270°C/5s
**without spark suppression
Excitation Voltage Range
3.0
2.5
2.0
1.5
1.0
0.5
U
B
U
N
0
2
1
5
6
12
18
24
48
60
110
3.5
4.2
8.4
12.6
16.8
33.6
42.0
77.0
≥0.5
≥0.6
≥1.2
≥1.8
≥2.4
≥4.8
≥6.0
≥11.0
121.0
100.0
50.0
33.3
25.2
12.6
10.0
5.5
41 ± 10%
60 ± 10%
240 ± 10%
540 ± 10%
950 ± 10%
3‘800 ± 10%
6‘000 ± 13%
20‘000 ± 15%
Tests, Regulations
Approvals
0
20
40
60
80
100
Ambient Temperature °C
UL File E188953
Insulation class IEC 60664-1
Protection class II
Fire protection requirements
Sec. 3
250VAC
VDE 0106
UL 94 / V0
1)
Max. excitation voltage with contact load: ≤6A
2) Min. excitation voltage (guaranteed values) without
previous operation
No heat accumulation due to intrinsic heating of
other components. Continuous duty 100%.
Options, Accessories
PCB socket
see page 30
Product Key
SIR 3 1 2
24VDC
Coil voltage
Soldering tags
Number of NC contacts
Number of NO contacts
Type designation
ELESTA relays GmbH, Heuteilstrasse 18, Fon:
CH - 7310 Bad Ragaz, Switzerland
Fax:
+41 (0)81 303 54 00
+41 (0)81 303 54 01
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06/2013
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