SRB-E-302FWS-TS
- 2 Safety contacts, 1 Safety Output
- Plug-in screw terminals with coding
- 1 Signalling output - status safety module
- 1 Signalling output - failure massage dynamic
- Detects standstill using 1 or 2 impulse sensors
- additional standstill signal, e.g. PLC as second input channel
- 2-channel time monitoring
Ordering data
| Product type description |
SRB-E-302FWS-TS |
| Article number (order number) |
103014754 |
| EAN (European Article Number) |
4030661511276 |
| eCl@ss number, version 12.0 |
27-37-18-19 |
| eCl@ss number, version 11.0 |
27-37-18-19 |
| eCl@ss number, version 9.0 |
27-37-18-19 |
| ETIM number, version 7.0 |
EC001449 |
| ETIM number, version 6.0 |
EC001449 |
Approvals - Standards
| Certificates |
TÜV cULus CCC |
General data
| Standards |
EN IEC 62061 EN ISO 13849-1 EN IEC 60947-5-1 EN IEC 60947-5-3 EN IEC 60947-5-5 EN IEC 61508 EN IEC 60204-1 EN IEC 60947-1 |
| Climatic stress |
EN 60068-2-78 |
| Housing material |
Glass-fibre reinforced thermoplastic, ventilated |
| Gross weight |
170 g |
General data - Features
| Electronic Fuse |
Yes |
| Wire breakage detection |
Yes |
| Cross-circuit detection |
Yes |
| Start input |
Yes |
| Feedback circuit |
Yes |
| Automatic reset function |
Yes |
| Reset edge detection |
Yes |
| Earth connection detection |
Yes |
| Integral system diagnostics, status |
Yes |
| Number of inputs for NC |
2 |
| Number of inputs for NO |
1 |
| Number of LEDs |
6 |
| Number of safety contacts |
2 |
| Number of fail-safe digital outputs |
1 |
| Number of signalling outputs |
2 |
Safety classification
| Standards |
EN ISO 13849-1 EN IEC 62061 EN IEC 61508 |
| Stop-Category |
0 |
Safety classification - Relay outputs
| Performance Level, up to |
e |
| Category |
4 |
| Diagnostic Coverage (DC) Level |
> 94 % |
| PFH value |
1.25 x 10⁻⁸ /h |
| PFD value |
5.30 x 10⁻⁵ |
| Safety Integrity Level (SIL), suitable for applications in |
3 |
| Mission time |
20 Year(s) |
| Common Cause Failure (CCF), minimum |
65 |
Safety classification - Fail-safe digital outputs
| Performance Level, up to |
e |
| Category |
4 |
| PFH value |
2.66 x 10⁻⁹ /h |
| PFD value |
2.42 x 10⁻⁵ |
| Safety Integrity Level (SIL), suitable for applications in |
3 |
| Mission time |
20 Year(s) |
Mechanical data
| Mechanical lifetime, minimum |
10,000,000 Operations |
| Mounting |
Snaps onto standard DIN rail to EN 60715 |
Mechanical data - Connection technique
| Terminal designations |
IEC 60947-1 |
| Cable section, minimum |
0.25 mm² |
| Cable section, maximum |
2.5 mm² |
| Tightening torque of Clips |
0.5 Nm |
| Allowed type of cable |
solid single-wire flexible |
| Terminal (mechanical) |
Removable screw terminals |
Mechanical data - Dimensions
| Width |
22.5 mm |
| Height |
98 mm |
| Depth |
115 mm |
Ambient conditions
| Degree of protection of the enclosure |
IP40 |
| Degree of protection of the installation space |
IP54 |
| Degree of protection of clips or terminals |
IP20 |
| Ambient temperature |
-25 ... +60 °C |
| Storage and transport temperature |
-40 ... +85 °C |
| Resistance to vibrations |
10 ... 55 Hz, Amplitude 0.35 mm |
| Restistance to shock |
30 g / 11 ms |
Ambient conditions - Insulation values
| Rated insulation voltage Ui |
250 V / 50 V |
| Rated impulse withstand voltage Uimp, relay output |
4 kV |
| Rated impulse withstand voltage Uimp, semiconductor output |
0.8 kV |
| Overvoltage category |
III |
| Degree of pollution |
2 |
Electrical data
| Operating voltage |
24 VDC -20 % / +20 % ((PELV) supply unit Imax 1.0 A, according to EN 60204 (power failure ≤ 20 ms)) |
| Ripple voltage |
10 % |
| Rated operating voltage |
24 VDC |
| Operating current |
125 mA |
| Rated AC voltage for controls at DC minimum |
19.2 VDC |
| Rated control voltage at DC, maximum |
28.8 VDC |
| Electrical power consumption |
3 W |
| Contact resistance, maximum |
0.1 Ω |
| Note (Contact resistance) |
in new state |
| Drop-out delay in case of power failure, typically |
10 ms |
| Drop-out delay in case of emergency, typically |
10 ms |
| Pull-in delay at automatic start, maximum, typically |
150 ms |
| ON delay at automatic start |
Adjustable |
| Pull-in delay at RESET, typically |
150 ms |
| Switching frequency, maximum |
0.3 Hz |
| Material of the contacts, electrical |
Ag-Ni, self-cleaning, positive drive |
Electrical data - Safety digital outputs
| Voltage drop Ud, maximum |
0.5 V |
| Leakage current Ir, maximum |
1 mA |
| Voltage, Utilisation category DC-13 |
24 VDC |
| Current, Utilisation category DC-13 |
2 A |
Electrical data - Safe relay outputs
| Voltage, Utilisation category AC-15 |
230 VAC |
| Current, Utilisation category AC-15 |
4 A |
| Voltage, Utilisation category DC-13 |
24 VDC |
| Current, Utilisation category DC-13 |
4 A |
| Switching capacity, minimum |
10 VDC |
| Switching capacity, minimum |
10 mA |
| Switching capacity, maximum |
250 VAC |
| Switching capacity, maximum |
6 A |
Electrical data - Digital inputs
| Conduction resistance, maximum |
40 Ω |
Electrical data - Digital Output
| Voltage, Utilisation category DC-12 |
24 VDC |
| Current, Utilisation category DC-12 |
0.1 A |
Electrical data - Relay outputs (auxiliary contacts)
| Switching capacity, maximum |
24 VDC |
| Switching capacity, maximum |
1 A |
Electrical data - Electromagnetic compatibility (EMC)
| EMC rating |
EMC-Directive |
Status indication
| Indicated operating states |
Internal operating voltage Ui Baustein-Status Fault codes |
Other data
| Note (applications) |
safe standstill monitoring Fail-safe delay timer |
Language filter
Datasheet
Operating instructions and Declaration of conformity
UL Certificate
CCC certification
TÜV certification
SISTEMA-VDMA library
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Product picture (catalogue individual photo)
ID: ksrb3f38
| 1.1 MB | .jpg | 301.978 x 666.75 mm - 856 x 1890 px - 72 dpi
| 96.8 kB | .png | 74.083 x 163.336 mm - 210 x 463 px - 72 dpi
| 41.8 kB | .jpg | 56.092000000000006 x 123.47200000000001 mm - 159 x 350 px - 72 dpi
| 32.1 kB | .png | 74.083 x 74.083 mm - 210 x 210 px - 72 dpi
| 11.2 MB | .png | 169.333 x 373.803 mm - 2000 x 4415 px - 300 dpi
Wiring example
Video ID: Mr-Safety-SRB-E-Stillstand
(Vimeo)
103015923 ML30.241-70
- 1-phase DIN rail power supplies
- AC 100-240V Wide-range input
- DC Output 24-28VDC / 1,3-1,1A / 30W
- Efficiency up to 89,4%
- Width only 22,5mm
| UK Declaration of Conformity |  |
| Company: | K.A. Schmersal GmbH & Co. KG Möddinghofe 30 42279 Wuppertal Germany Internet: www.schmersal.com |
| Declaration: | We hereby, under sole responsibility, certify that the hereafter described components both in their basic design and construction conform to the relevant statutory requirements, regulations and designated standards of the United Kingdom. |
| Name of the component: | SRB-E-302FWS-TS |
| Type: | See ordering code |
| Description of the component: | Fail-safe delay timer, safe standstill monitor |
| Relevant legislation: | Supply of Machinery (Safety) Regulations | 2008 |
| Electromagnetic Compatibility Regulations | 2016 | |
| The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations | 2012 |
| Designated standards: | EN ISO 13849-1:2015 EN ISO 13849-2:2012 IEC 61508 parts 1-7:2010 EN 62061:2005 + AC:2010 + A1:2013 + A2:2015 |
| Notified body, which approved the full quality assurance system, referred to in Appendix X, 2006/42/EC: | TÜV Rheinland Industrie Service GmbH Am Grauen Stein 51105 Köln ID n°: 0035 |
| UK-Importer / Person authorised for the compilation of the technical documentation: | Schmersal UK Ltd. Paul Kenney Unit 1, Sparrowhawk Close Enigma Business Park Malvern, Worcestershire, WR14 1GL |
| Place and date of issue: | Wuppertal, March 14, 2023 |
 |
| Authorised signature Philip Schmersal Managing Director |
| EU Declaration of Conformity | |
| Original | K.A. Schmersal GmbH & Co. KG Möddinghofe 30 42279 Wuppertal Germany Internet: www.schmersal.com |
| Declaration: | We hereby certify that the hereafter described components both in their basic design and construction conform to the applicable European Directives. |
| Name of the component: | SRB-E-302FWS-TS |
| Type: | See ordering code |
| Description of the component: | Fail-safe delay timer, safe standstill monitor |
| Relevant Directives: | Machinery Directive | 2006/42/EC |
| EMC-Directive | 2014/30/EU | |
| RoHS-Directive | 2011/65/EU |
| Applied standards: | EN ISO 13849-1:2023 EN ISO 13849-2:2012 IEC 61508 parts 1-7:2010 |
| Notified body for Type Examination: | TÜV Rheinland Industrie Service GmbH Am Grauen Stein, 51105 Köln ID n°: 0035 |
| EC-Type Examination Certificate: | 01/205/5635.01/25 |
| Person authorised for the compilation of the technical documentation: | Oliver Wacker Möddinghofe 30 42279 Wuppertal |
| Place and date of issue: | Wuppertal, September 23, 2025 |
|
| Authorised signature Philip Schmersal Managing Director |
Schmersal, Inc., 15 Skyline Drive, NY 10532 Hawthorne
The details and data referred to have been carefully checked. Images may diverge from original. Further technical data can be found in the manual. Technical amendments and errors possible.
Generated at: 2026-04-15, 8:11 a.m.