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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• 2 safety contacts
• Suitable for signal processing of emergency stop control devices, interlocking equipment, etc
• Automatic reset function

Ordering details
Product type descriptionSRB200EXI-1A
Article number101196286
EAN Code4250116202386
StandardsEN ISO 13849-1, IEC 61508, EN 60947-5-1
PLbis e (STOP 0)
Control categorybis 4 (STOP 0)
DC99% (STOP 0)
CCF> 65 points
PFH value≤ 2,0.0 x 10-8/h (STOP 0)
SILbis 3 (STOP 0)
Mission time15 Years
- noticeThe PFH value is applicable for the combinations listed in the table for contact load (K) (current through enabling paths) and switching cycle number (n-op/y).
In case of 365 operating days per year and a 24-hour operation, this results in the specified switching cycle times (t-cycle) for the relay contacts.
Diverging applications on request.
Global Properties
Permanent lightSRB200EXI
StandardsEN 60079-0, EN 60079-11, EN 60079-15
Compliance with the Directives (Y/N) Yes
Climatic stressEN 60068-2-78
Mountingsnaps onto standard DIN rail to EN 60715
Terminal designationsIEC/EN 60947-1
- Material of the housingsPlastic, glass-fibre reinforced thermoplastic, ventilated
- Material of the contactsAgSn0, self-cleaning, positive action
Start conditionsAutomatic
Start input (Y/N)No
Feedback circuit (Y/N)Yes
Start-up test (Y/N)No
Reset after disconnection of supply voltage (Y/N)
Automatic reset function (Y/N)Yes
Reset with edge detection (Y/N)No
Pull-in delay
- ON delay with automatic starttyp. 300 ms
- ON delay with reset buttontyp. 20 ms
Drop-out delay
- Drop-out delay in case of power failuretyp. 20 ms
- Drop-out delay in case of emergency stop≤ 20
Mechanical data
Connection typeScrew connection
Cable section
- Min. Cable section0,25
- Max. Cable section2.5
Pre-wired cablerigid or flexible
Tightening torque for the terminals0,6
Detachable terminals (Y/N)No
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
- 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 voltage Uimp4 kV
- Overvoltage categoryIII To IEC/EN 60664-1
- 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 controls20.4
- Max. rated DC voltage for controls28.8
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 resistancemax. 100 mΩ
Power consumptionmax. 3 W
Type of actuationDC
Rated operating voltage Ue24 VDC−15% / +20%, residual ripple max. 10%
Electronic protection (Y/N)No
Fuse rating for the operating voltageInternal electronic trip,
F1: T50 mA / 250 V
F2: T100 mA / 250 A V
Bridging in case of voltage dropstyp. 15 ms
Voltage, tension Uo33.6 V
Current Io57.0 mA
Capacity Po478.8 mW (linear characteristic)
external capacity CoRefer to tables in the operating manual
external inductivity LoRefer to tables in the operating manual
Monitored inputs
- Short-circuit recognition (Y/N)Yes
- Wire breakage detection (Y/N)Yes
- Earth connection detection (Y/N)Yes
Number of shutters0
Number of openers2
Cable lengthReference values to EN 60079-14
Conduction resistance30 Ω
Stop category0
Number of safety contacts2
Number of auxiliary contacts0
Number of signalling outputs0
Switching capacity
- Switching capacity of the safety contactsmax. 230 VAC, 3 A ohmic ( inductive in case of appropriate protective wiring)
Fuse rating
- Protection of the safety contacts3.15 A slow blow
Utilisation category To EN 60947-5-1AC-15: 230 V / 2 A
DC-13: 24 V / 2 A
Number of undelayed semi-conductor outputs with signaling function0
Number of undelayed outputs with signaling function (with contact)0
Number of delayed semi-conductor outputs with signaling function.0
Number of delayed outputs with signalling function (with contact).0
Number of secure undelayed semi-conductor outputs with signaling function0
Number of secure, undelayed outputs with signaling function, with contact.2
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
LED switching conditions display
- The integrated LEDs indicate the following operating states.
- Position relay K11
- Position relay K21
- Supply voltage UB1
- Internal operating voltage Ui1
- Internal operating voltage UEXi1
EX-markingEX II (2) G [Ex ib Gb] IIC
EX II (2) D [Ex ib Db] IIIC
EX II 3 G Ex nA nC IIC T5 Gc (installation SRB, in Zone 2)
Explosion protection categories for gases2G
Explosion protection Zones for gases1
Explosion protected category for dusts2D
Explosion protection Zones for dusts21
Miscellaneous data
Applications Emergency-Stop button
Pull-wire emergency stop switches
Guard system
Safety sensor
- Width22.5 mm
- Height100 mm
- Depth121 mm
Inductive loads (e.g. contactors, relays, etc.) are to be suppressed by means of a suitable circuit.
notice - Wiring example
To secure a guard door up to PL 4 and Category #03#
Monitoring 1 guard door(s), each with a magnetic safety sensor of the BNS range
The feedback circuit monitors the position of the contactors Ka and Kb.
If only one external relay or contactor is used to switch the load, the system can be classified in Control Category 3 to EN 954-1, if exclusion of the fault “Failure of the external contactor” can be substantiated and is documented, e.g. by using a reliable down-rated contactor. A second contactor leads to an increase in the level of security by redundant switching to switch the load off.
Automatic start: The automatic start is programmed by connecting the feedback circuit to the terminals X1/X2. If the feedback circuit is not required, establish a bridge
The wiring diagram is shown with guard doors closed and in de-energised condition.

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 19.09.2019 - 17:07:30h Kasbase 3.3.0.F.64I