SRB-E-402EM
- Plug-in screw terminals with coding
- Expander module for contact expansion
- 4 safety contacts, STOP 0
- 2 Signalling outputs
Ordering data
| Product type description |
SRB-E-402EM |
| Article number (order number) |
103041198 |
| EAN (European Article Number) |
4030661563411 |
| 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 |
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 |
250 g |
General data - Features
| Wire breakage detection |
Yes |
| Removable Terminals |
Yes |
| Feedback circuit |
Yes |
| Automatic reset function |
Yes |
| Earth connection detection |
Yes |
| Integral system diagnostics, status |
Yes |
| Number of auxiliary contacts |
2 |
| Number of LEDs |
1 |
| Number of normally closed (NC) |
1 |
| Number of safety contacts |
4 |
Safety classification
| Standards |
EN ISO 13849-1 EN IEC 61508 |
| Stop-Category |
0 |
Safety classification - Relay outputs
| Performance Level, stop 0, up to |
e |
| Category, Stop 0 |
4 |
| Diagnostic Coverage (DC) Level, Stop 0 |
≥ 99 % |
| PFH value, Stop 0 |
2.00 x 10⁻⁸ /h |
| Safety Integrity Level (SIL), Stop 0, suitable for applications in |
3 |
| Mission time |
20 Year(s) |
| Common Cause Failure (CCF), minimum |
65 |
Mechanical data
| Mechanical lifetime, minimum |
10,000,000 Operations |
| Mounting |
Snaps onto standard DIN rail to EN 60715 |
Mechanical data - Connection technique
| Terminal designations |
EN 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, ± 15 % |
| Restistance to shock |
10 g / 11 ms |
Ambient conditions - Insulation values
| Rated impulse withstand voltage Uimp |
4 kV |
| Overvoltage category |
III |
| Degree of pollution |
2 |
Electrical data
| Frequency range |
50 Hz 60 Hz |
| Operating voltage |
24 VAC -15 % / +10 % |
| Ripple voltage |
10 % |
| Rated operating voltage |
24 VAC |
| Rated operating voltage |
24 VDC |
| Rated AC voltage for controls, 50 Hz, minimum |
20.4 VAC |
| Rated control voltage at AC 50 Hz, maximum |
26.4 VAC |
| Rated AC voltage for controls, 60 Hz, minimum |
20.4 VAC |
| Rated control voltage at AC 60 Hz, maximum |
26.4 VAC |
| Rated AC voltage for controls at DC minimum |
20.4 VDC |
| Rated control voltage at DC, maximum |
28.8 VDC |
| Electrical power consumption |
1.3 W |
| Electrical power consumption |
2.2 VA |
| Contact resistance, maximum |
0.1 Ω |
| Note (Contact resistance) |
in new state |
| Drop-out delay, maximum |
35 ms |
| Pull-in delay at automatic start, maximum, typically |
20 ms |
| Material of the contacts, electrical |
Ag-Ni, self-cleaning, positive drive |
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 - Relay outputs (auxiliary contacts)
| Switching capacity, maximum |
24 VDC |
| Switching capacity, maximum |
2 A |
Electrical data - Electromagnetic compatibility (EMC)
| EMC rating |
EMC-Directive |
Status indication
| Indicated operating states |
Position relay K1/K2 |
Note
| Note (General) |
Inductive loads (e.g. contactors, relays, etc.) are to be suppressed by means of a suitable circuit. |
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Datasheet
Operating instructions and Declaration of conformity
UL Certificate
CCC certification
SISTEMA-VDMA library
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Product picture (catalogue individual photo)
ID: ksrb4f25
| 887.8 kB | .jpg | 301.978 x 666.75 mm - 856 x 1890 px - 72 dpi
| 95.4 kB | .png | 74.083 x 163.336 mm - 210 x 463 px - 72 dpi
| 39.2 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
| 10.9 MB | .png | 169.333 x 373.803 mm - 2000 x 4415 px - 300 dpi
| 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: | SRB402EM, SRB402EM/CC |
| Description of the component: | Contact expander module This device has no internal logic and must only be used as output expander in conjunction with a basic component, which is suitable for the application. |
| Relevant Directives: | Low Voltage Directive | 2014/35/EU |
| EMC-Directive | 2014/30/EU | |
| RoHS-Directive | 2011/65/EU |
| Applied standards: | EN 60947-5-1:2017 |
| Person authorised for the compilation of the technical documentation: | Oliver Wacker Möddinghofe 30 42279 Wuppertal |
| Place and date of issue: | Wuppertal, January 19, 2021 |
![]() |
| Authorised signature Philip Schmersal Managing Director |
| 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: | SRB402EM |
| Type: | See ordering code |
| Description of the component: | Contact expander module This device has no internal logic and must only be used as output expander in conjunction with a basic component, which is suitable for the application. |
| Relevant legislation: | Electrical Equipment (Safety) Regulations | 2016 |
| Electromagnetic Compatibility Regulations | 2016 | |
| The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations | 2012 |
| Designated standards: | EN 60947-5-1:2017 |
| 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, October 13, 2022 |
![]() |
| Authorised signature Philip Schmersal Managing Director |
K.A. Schmersal GmbH & Co. KG, Möddinghofe 30, 42279 Wuppertal
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: 15/04/2026, 13:11


