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SAFESERIES SIL RELAYS
SCS Series
NEW
Safe control of back-up systems
The monitoring circuit option takes
inputs from 24 to 230 V AC/DC and the
safety relay is intended for use in back-up
systems or storage tank overfill prevention.
Safe control of burner operation
Fuel flow to the burner may be
cut-off in a boiler alarm condition.
SAFESERIES offers a SIL3 fuel cut-off
relay which interfaces with the burner
management controls.
Safe use in corrosive environments
The SIL3 relay is also available with a
G3 coating, which makes it especially
suitable for use in aggressive
environmental conditions.
Safe activation and deactivation
This flexible safety relay can be used in
either energize-to-safe or de-energizeto-safe mode. This makes it suitable for
use both with actuators which should
be powered-on under safe conditions or
those which should be powered-off.
Weidmuller’s single and dual channel DIN rail-mounted SCS
Series are relay modules suitable for switching safety related
circuits up to SIL3 level according to IEC 61508, for high risk
installations.
Typical applications include safety interlocks for burner
management systems, over-fill controls for bulk liquid storage
tanks and plant shut-down systems.
The SCS Series is part of Weidmuller’s broad range of high
reliability electronics and electrical connectivity products
which services process industries and factory automation
systems worldwide.
•
•
•
•
•
SIL relays for process Emergency Shut-Down systems
Certified cULus and to IEC 61508 for SIL3 (TÜV)
Energized or de-energized to safe modes
Single and two-channel models
Monitoring options with wide-range input voltage
Weidmuller, Canada
10 Spy Court
Markham, Ontario L3R 5H6
Telephone: (800) 268-4080
Facsimile: (877) 300-5635
Email: [email protected]
Website: www.weidmuller.ca
Weidmuller, Mexico
Blvd. Hermanos Serdán 698,
Col. San Rafael Oriente
Puebla, Puebla, Mexico
C.P. 72029
Telephone: 01 222 2686267
Facsimile: 01 222 2686219
Email: [email protected]
Website: www.weidmuller.com.mx
Weidmuller, United States
821 Southlake Blvd.
Richmond, Virginia 23236
Telephone: (800) 849-9343
Facsimile: (804) 379-2593
Email: [email protected]
Website: www.weidmuller.com
SAFESERIES SIL relays
SIL3 relays
The SCS 24VDC P1SIL3DS safety relay is used in areas
that require a functionally safe shutdown. This component
The
V DC P1SIL3DS
safetySIL
relay
fulfillsSCS
the 24
requirements
of IEC 61508,
3. is used
SCS 24 V DC P1SIL3DS
•W
ith and without monitoring circuit
•W
ide-range input voltage in the
monitoring circuit
•E
xternally accessible fuse
•T
ÜV certified “Safety Approved“
•S
IL3 rated when internal or external
output fuse used
in areas that require a functionally safe shutdown.
This component fulfills the requirements of IEC
61508, SIL3. cULus Listed to UL 508 and CSA
C22.2 No.14 under file E223474.
Monitor IN
Safety OUT
max. 240 V AC
switching voltage
Technical data
Ordering data
Note
2
with monitoring
without monitoring
with monitoring and G3 gas-corrosion resistant
13
14
T
24 V UC...230 V UC
15
M1
M2
5A T
-25...+50 °C
-40...+85 °C
Monitor
Yes (art. No.: 1304040000 only)
24 V DC ± 20%
35 mA
42 mA
LED yellow
Relay
Output
A1
24 V AC/DC…230 V AC/DC ±10 %
23 mA @ 24 V DC, 4,4 mA @ 230 V AC
LED yellow
A2
+24 V 0 V
Logic Input
21
22
24
max. 24 V DC
switching voltage
1303890000 SCS 24VDC P1SIL3DS
NO contact
5 A (refer to derating curve)
5 A (refer to derating curve)
250 V AC / 30 V DC
8A
12 V / 10 mA
2000 VA
typ. 7 ms
Ag Ni 0.15
5 A time-lag (refer to User Manual for details)
5 A time-lag (refer to User Manual for details)
No
CO contact
24 V DC
30 A
1 V / 1 mA
AgNi 5µm Au
typ. 17 ms
No
1304040000 SCS 24VDC P1SIL3DC MG3
6
Derating curve
5
4
3
Load current in A
2
300 V
≥ 5.5 mm
≥ 5.5 mm
1.2 kVeff / 1 min.
1.2 kVeff / 1 min.
1.2 kVeff / 1 min.
6 kV (1.2/50 µs)
III
2
1
0
0
114
EN 61000, EN 61326-3-2, EN 61508 / cULus, SIL3
1.5 / 0.13 / 2.5
114 / 22.5 / 117.2
Type
Qty.
SCS 24VDC P1SIL3DS M
1
SCS 24VDC P1SIL3DS
1
SCS 24VDC P1SIL3DS MG3 1
10
20
30
117.2
Part No.
1303760000
1303890000
1304040000
22.5
Temperatures
Ambient temperature (operational)
Storage temperature
General data
Noxious gas resistance to EN 60068-2-60
Input (safety circuit)
Rated control voltage
Guaranteed current consumption of 24 V DC -10 %
Power consumption
Status indicator
Input (monitor circuit)
Rated control voltage
Current consumption
Status indicator
Output (safety circuit)
Contact design
Max. switching current, internal fuse
Max. switching current, external fuse
Max. permitted switching voltage
Max. permitted switching current
Min. switching power
Max. switching power
Switch-on time
Base material of the contact
Internal fuse
External back-up fuse
Short-circuit-proof
Output (monitor circuit)
Contact design
Max. permitted switching voltage
Max. allowed switching current
Min. switching capacity
Contact base material
Switch-on time
Short circuit resistant
Insulation coordination (EN 50178)
Rated voltage
Creepage and clearance distance input – output
Creepage and clearance distance output – output
Dielectric strength input – output
Dielectric strength output – output
Dielectric strength to mounting rail
Impulse withstand voltage
Surge voltage category
Pollution severity
Further details of approvals / standards
Standards / Approvals
Dimensions
Clamping range (nominal / min. / max.)
mm²
Depth x width x height
mm
Note
Field
40
50
60
Ambient temperature in °C
SAFESERIES SIL relays
SIL3 relays
SCS 24 V DC P2SIL3DSES
•E
nergized / de-energized to safe
•T
est inputs for testing the relay contacts
•E
xternally accessible fuse
•T
ÜV certified “Safety Approved“
•S
IL3 rated when internal or external
output fuse used
The safety relay SCS 24 V DC P2SIL3DSES is used
in areas that require functionally safe deactivation or
activation. The requirements according to IEC 61508,
SIL3 can be fulfilled with this module.
The safety relay SCS 24VDC P2SIL3DSES is used in areas
that require functionally safe deactivation or activation.
The requirements according to IEC 61508, SIL3 can be
fulfilled with this module.
Technical data
Note
Ordering data
Note
Safety OUT
max. 240 V AC
switching voltage
24 V DC -15 / +20%
35 mA
45 mA
LED yellow
F
13
14
23
24
5A T
24 V DC
LED red flashing: test input is triggered
2
1 x de-energized to safe (NO contact),
1 x energized to safe (NO contact)
5 A (refer to derating curve)
5 A (refer to derating curve)
250 V AC
8A
12 V / 10 mA
2000 VA
< 5.5 ms (DTS), < 5 ms (ETS)
Ag Ni 0.15
5 A time-lag (refer to User Manual for details)
5 A time-lag (refer to User Manual for details)
No
TEST
1
RELAY
OUTPUT
A1
2
A2
X1
+24 V DC 0 V
Logic Input
X2
X3
+24 V DC 0 V
Test Input
117.2
300 V
≥ 5.5 mm
≥ 5.5 mm
1.2 kVeff / 1 min.
1.2 kVeff / 1 min.
1.2 kVeff / 1 min.
6 kV (1.2/50 µs)
III
2
114
Max. switching current, internal fuse
Max. switching current, external fuse
Max. permitted switching voltage
Max. permitted switching current
Min. switching power
Max. switching power
Switch-on time
Base material of the contact
Internal fuse
External back-up fuse
Short-circuit-proof
Insulation coordination (EN 50178)
Rated voltage
Creepage and clearance distance input – output
Creepage and clearance distance output – output
Dielectric strength input – output
Dielectric strength output – output
Dielectric strength to mounting rail
Impulse withstand voltage
Surge voltage category
Pollution severity
Further details of approvals / standards
Standards / Approvals
Dimensions
Clamping range (nominal / min. / max.)
mm²
Depth x width x height
mm
-25 °C...+50 °C
-40 °C...+85 °C
EN 61000, EN 61326-3-2, EN 61508 / SIL3
1.5 / 0.13 / 2.5
114 / 22.5 / 117.2
DTS (de-energized to safe)
ETS (energized to safe)
Type
SCS 24VDC P2SIL3DSES
Qty.
1
Part No.
1319270000
22.5
Temperatures
Ambient temperature (operational)
Storage temperature
Input (safety circuit)
Rated control voltage
Guaranteed current consumption of 24 V DC -10 %
Power consumption
Status indicator
Test inputs
Rated control voltage
Status indicator
Number of test inputs
Output (safety circuit)
Contact design
3
SAFESERIES SIL relays
SCS 24 V DC P2SIL3ES
•P
ositively-driven contacts
•2
-channel design
• Insert according to EN 50156
•T
ÜV certified “Safety Approved“
Use where fuel flow to the burner may be cut-off in a
boiler alarm condition. SAFESERIES model SCS 24 V DC
P2SIL3ES offers a SIL3 fuel cut-off relay which interfaces
with the burner management controls.
Use where fuel flow to the burner may be cut-off in a boiler
alarm condition. SAFESERIES model SCS 24VDC P2SIL3ES
offers a SIL3 fuel cut-off relay which interfaces with the
burner management controls.
Technical data
Input (supply)
Rated control voltage
Current consumption
Guaranteed current consumption at 24 V DC -10 %
Response time
Status display
Short-circuit detection
Monitoring circuit
Operating voltage
Input
Output (release circuit)
Contact version
Switching voltage AC, max.
Max. permitted switching current
Min. switching capacity
Max. switching power
Switch-on time
Switch-off time
Contact base material
Max. switching current, external fuse
External back-up fuse
Feedback output
Contact version
Switching voltage AC, max.
Max. switching current
Insulation coordination (EN 50178)
Rated voltage
Creepage and clearance distance input – output
Creepage and clearance distance output – output
Dielectric strength input – output
Dielectric strength output – output
Dielectric strength to mounting rail
Impulse withstand voltage
Surge voltage category
Pollution severity
Further details of approvals / standards
Standards / Approvals
Dimensions
Clamping range (nominal / min. / max.)
mm²
Depth x width x height
mm
Note
Ordering data
Note
4
-25 °C...+55 °C
-40 °C...+85 °C
22 V DC, from internal power supply
falling edge (button via S33/S34), rising edge
(permanent bridge via S33/S35)
24 V DC ±15 %
55 mA (release circuit enabled), 6 mA (release circuit
not enabled)
35 mA
with bridge via C1/C2: typ. 50 ms, without bridge via
C1/C2: typ. 20 ms
LED green, power, LED yellow, signal
Yes, max 4 s up to switch-off (Polyfuse)
Safety OUT
max. 240 V AC
switching voltage
31
32
13
23
24
14
22 V DC, from internal power supply
2, each externally bridgeable
2 NO positively-driven (EN 50205)
250 V
6A
12 V / 10 mA
2000 VA
55 ms (C1/C2 bridged, switched via A1/A2), 30 ms
(opening/closing of monitoring circuit)
20 ms (C1/C2 bridged, switched via A1/A2), 15 ms
(opening/closing of monitoring circuit)
AgSnO
5 A time-lag (refer to User Manual for details)
5 A time-lag (refer to User Manual for details)
K1
POWER
CH1
CH2
A1 A2 C1 C2 S33 S34 S35 S11 S12 S21 S22
+24 V DC 0 V
Logic Input tr
C1 C2
1 NC positively-driven (EN 50205 type B)
250 V
1A
300 V
≥ 5.5 mm
≥ 5.5 mm
1.2 kVeff / 1 min.
1.2 kVeff / 1 min.
1.2 kVeff / 1 min.
6 kV (1.2/50 µs)
III
2
K2
Reset Auto Start
Activation
tr
> 50 ms
> 20 ms
117.2
114
Temperatures
Ambient temperature (operational)
Storage temperature
Start circuit
Operating voltage
Function
EN 61000, EN 61326-3-2, EN 61508 / SIL3
1.5 / 0.13 / 2.5
114 / 22.5 / 117.2
Type
SCS 24VDC P2SIL3ES
Qty.
1
Part No.
1319280000
22.5
SIL3 relays
Subject to technical changes • 11/14 • LIT1420E
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