Notes Switch travel diagram
  Contact closed
  Contact open
  Setting range
  Break point
  Positive opening sequence/- angle
VS  adjustable range of NO contact
  adjustable range of NC contact
N   after travel
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• ,
• Detects standstill using 1 or 2 impulse sensors

• 2 Signalling outputs

Ordering details
Product type descriptionSRB-E-402FWS-TS
Article number103014757
EAN Code
Approval USA/CAN
Relay outputs
StandardsISO 13849-1, IEC 61508, IEC 62061
PLup e
Control categoryup 4
CCF> 65 points
PFH value≤ 1.25 x 10−8/h
PFD value≤ 5.3 x 10−5
SILup 3
Mission time20 Years
Semi-conductor outputs
StandardsISO 13849-1, IEC 61508, IEC 62061
PLbis e
Control categorybis 4
PFH value≤ 2.66 x 10−9/h
PFD value≤ 2.42 x 10−5
SILbis 3 Years
Mission time20 Years
Global Properties
Product nameSRB-E-402FWS-TS
StandardsEN 60204-1, EN 60947-5-1, ISO 13849-1, IEC 61508, IEC 62061
Compliance with the Directives (Y/N) Yes
Mountingsnaps onto standard DIN rail to EN 60715
Terminal designationsIEC 60947-1
- Material of the housingsPlastic, glass-fibre reinforced thermoplastic, ventilated
- Material of the contacts, self-cleaning, positive action
Weight190 g
Start conditionsAutomatic or
Start input (Y/N)Yes
Feedback circuit (Y/N)Yes
Start-up test (Y/N)No
Automatic reset function (Y/N)Yes
Reset with edge detection (Y/N)Yes
Pull-in delay
- ON delay with automatic startadjustable
- ON delay with reset button< 150 ms
Drop-out delay
- Drop-out delay in case of power failure< 10 ms
- Drop-out delay in case of emergency stop
Mechanical data
Connection typeScrew connection, plug-in
Cable section
- Min. Cable section0,25
- Max. Cable section2.5
Pre-wired cablerigid or flexible
Tightening torque for the terminals0,5
Detachable terminals (Y/N)Yes
Mechanical life10.000.000 operations
Electrical lifetimeDerating curve available on request
restistance to shock30 g / 11 ms
Resistance to vibration To EN 60068-2-610…55 HZ, Amplitude 0,35 mm
Ambient conditions
Ambient temperature
- Min. environmental temperature−25 °C
- Max. environmental temperature+60 °C
Storage and transport temperature
- Min. Storage and transport temperature−40 °C
- Max. Storage and transport temperature+85 °C
Protection class
- Protection class-EnclosureIP40
- Protection class-TerminalsIP20
- Protection class-ClearanceIP54
Air clearances and creepage distances To IEC/EN 60664-1
- Rated impulse withstand voltage6 kV / 0,8 kV
Overvoltage categoryIII
- Degree of pollution2 To IEC/EN 60664-1
Electromagnetic compatibility (EMC)
EMC ratingconforming to EMC Directive
Electrical data
Rated DC voltage for controls
- Max. rated DC voltage for controls19.2 V
- Max. rated DC voltage for controls28.8 V
Rated AC voltage for controls, 50 Hz
- Min. rated AC voltage for controls, 50 Hz
- Max. rated AC voltage for controls, 50 Hz
Rated AC voltage for controls, 60 Hz
- Min. rated AC voltage for controls, 60 Hz
- Max. rated AC voltage for controls, 60 Hz
Contact resistance100
Power consumption3.6
Type of actuationDC
Switch frequency0,3 HZ
Rated insulation voltage250 V / 50 V
Rated operating voltage24 VDC −20% / +20%, residual ripple 10%
Operating current0,15 A
Frequency range
Electronic protection (Y/N)No
Fuse rating for the operating voltageWe recommend a Z type circuit breaker (max. 16 A) either a fine-wire fuse (max. 15A, slow-blow)
Bridging in case of voltage drops5 ms
Cyclic outputs> 20 VDC, 10 mA for each output
Control inputs24 VDC / 8 mA
Monitored inputs
- Short-circuit recognition (Y/N)Yes
- Wire breakage detection (Y/N)Yes
- Earth connection detection (Y/N)Yes
Number of shutters2
Number of openers4
Cable length1500 with 1.5 ;
2500 with 2.5
Conduction resistance40
Stop category
Number of safety outputs2
Number of safety contacts2
Number of auxiliary contacts1
Number of signalling outputs1
Relay outputs
Switching capacity of the safety contacts250 V, 6 A ohmic
10 VDC / 10 mA
(inductive in case of appropriate protective wiring)
Protection of the safety contactsSafety fuse 10 A quick-blow, 6 A slow blow
Utilisation categoryAC-15: 230 V / 4 A
DC-13: 24 V / 4 A
Semi-conductor outputs
Switching capacity of the safety outputsmax. 2 A (inductive in case of appropriate protective wiring)
Voltage drop< 5 V
Residual current< 1 mA
Test impulse width< 1 ms
< 100
Fuse rating for the safety outputs
Utilisation categoryDC-13: 24 V / 2 A
Switching capacity of the signaling/diagnostic outputs24 VDC / 100 mA
Fuse rating for the signaling/diagnostic outputsInternal electronic trip
LED switching conditions display
LED switching conditions display (Y/N)Yes
Number of LED´s6
LED fault codesYes
Miscellaneous data
Applications safe standstill monitoring
Fail-safe delay timer
Safety guard monitoring
- Width22.5 mm
- Height98 mm
- Depth115 mm

K.A. Schmersal GmbH & Co. KG, Möddinghofe 30, D-42279 Wuppertal
The data and values have been checked throroughly. Technical modifications and errors excepted.
Generiert am 20.09.2019 - 13:30:44h Kasbase 3.3.0.F.64I