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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• Suitable for applications up to Cat. 4 / PL e und up to SIL 3
• 1 or 2 channel signal evaluation
• Start / feedback circuit monitoring
• Optionally with short-circuit recognition
• 3 safety contacts, stop category 0
• 1 Signalling contact
• Slot-in termination with coding

Ordering details
Product type descriptionSRB-E-301MC
Article number103014374
EAN Code
Approval USA/CAN CCC
CCF> 65 points
StandardsISO 13849-1, IEC 61508, IEC 60947-5-1
PLup e
Control categoryup 4
PFH value≤ 6.0 x 10−9/ h
PFD value≤ 4.0 x 10−5
SILup 3
Mission time20 Years
Global Properties
Permanent lightSRB-E-301MC
StandardsEN 60204-1, IEC 60947-5-1, ISO 13849-1, IEC 61508
Compliance with the Directives (Y/N) Yes
Climatic stressIEC 60068-2-78
MountingSnaps onto standard DIN rails to IEC 60715
Terminal designationsIEC 60947-1
- Material of the housingsPlastic, glass-fibre reinforced thermoplastic, ventilated
- Material of the contacts, self-cleaning, positive action
Start conditionsAutomatic or Start button
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)No
Pull-in delay
- ON delay with automatic start< 120
- ON delay with reset button< 120
Drop-out delay
- Drop-out delay in case of power failure< 50
- Drop-out delay in case of emergency stop< 10
Mechanical data
Connection typeScrew connection
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 / 11
Resistance to vibration To EN 60068-2-610…55 HZ, Amplitude 0,35 mm, ± 15 %
Ambient conditions
Ambient temperature
- Min. environmental temperature−25
- Max. environmental temperature+60
Storage and transport temperature
- Min. Storage and transport temperature−40
- Max. Storage and transport temperature+85
Protection class
- Protection class-EnclosureIP40
- Protection class-TerminalsIP20
- Protection class-ClearanceIP54
Air clearances and creepage distances To IEC/EN 60664-1
- Rated impulse withstand voltage4
Overvoltage categoryIII To IEC 60664-1
- Degree of pollution2 To IEC 60664-1
Electromagnetic compatibility (EMC)
EMC ratingconforming to EMC Directive
Electrical data
Rated DC voltage for controls
- Max. rated DC voltage for controls20.4
- Max. rated DC voltage for controls28.8
Rated AC voltage for controls, 50 Hz
- Min. rated AC voltage for controls, 50 Hz20.4
- Max. rated AC voltage for controls, 50 Hz26.4
Rated AC voltage for controls, 60 Hz
- Min. rated AC voltage for controls, 60 Hz20.4
- Max. rated AC voltage for controls, 60 Hz26.4
Current and tension on control circuits
Contact resistance100
- S11, S12, S21, S2224 , Test current: 10
Power consumption3.4; 8.5
Type of actuationAC/DC
Switch frequency
Rated operating voltage24 −15 / +20, residual ripple 10
24 −15 / +10
Operating current
Frequency range50 / 60
Electronic protection (Y/N)
Fuse rating for the operating voltageInternal fuse, tripping current > 1 A
Bridging in case of voltage drops40
Monitored inputs
- Short-circuit recognition (Y/N)optional
- Wire breakage detection (Y/N)Yes
- Earth connection detection (Y/N)Yes
Number of shutters0
Number of openers2
Cable length1500 with 1.5 ;
2500 with 2.5
Conduction resistance40
Fuse rating
Switching capacity
- Switching capacity of the safety contactsmax. 250 , 6 A ohmic ( inductive in case of appropriate protective wiring)
10 / 10
- Switching capacity of the auxiliary contacts24 , 1 A
Utilisation category To EN 60947-5-1AC-15: 230 V / 4 A
DC-13: 24 V / 4 A
- Protection of the safety contacts6 A slow blow
- Fuse rating for the auxiliary contacts1 A slow blow
Number of undelayed semi-conductor outputs with signaling function0
Number of undelayed outputs with signaling function (with contact)1
Number of delayed outputs with signalling function (with contact).0
Number of delayed semi-conductor outputs with signaling function.0
Number of secure undelayed semi-conductor outputs with signaling function0
Number of secure, undelayed outputs with signaling function, with contact.3
Number of secure, delayed semi-conductor outputs with signaling function0
Number of secure, delayed outputs with signaling function (with contact).0
LED switching conditions display
LED switching conditions display (Y/N)Yes
Number of LED´s5
- Position relay K21
- Position relay K11
- Internal operating voltage1
- Supply voltage1
LED switching conditions display
- The integrated LEDs indicate the following operating states.
- Short-circuit recognition1
Miscellaneous data
Applications Emergency-Stop button
Guard system
Pull-wire emergency stop switches
Safety light curtain
Safety sensor
- Width22.5
- Height98
- Depth115

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 22.08.2019 - 15:03:06h Kasbase 3.3.0.F.64I