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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• Muting signalling device monitoring
• 2 safety contacts, STOP 0
• 2 Signalling outputs

 
 
Ordering details
 
Product type descriptionSRB 202MSK/QS-24V
Article number101204981
EAN Code
eCl@ss27-37-19-01
 
Approval
 
Approval
 
Classification
 
StandardsEN ISO 13849-1, IEC 61508, EN 60947-5-1
PLup e (STOP 0)
Control categoryup 4 (STOP 0)
DC99 (STOP 0)
CCF>65 points
PFH value≤ 2,0 x 10-8/ (STOP 0)
SILup 3 (STOP 0)
Mission time20 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 lightSRB 202MSK
StandardsIEC/EN 60204-1, EN 60947-5-1, EN ISO 13849-1, IEC 61508
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
Materials
- Material of the housingsPlastic, glass-fibre reinforced thermoplastic, ventilated
- Material of the contacts, , self-cleaning, positive action
Weight350
Start conditionsAutomatic with Muting sensors
Start input (Y/N)No
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 start200
Drop-out delay
Drop-out delay in case of power failure60
- 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)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+45
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 VDE 0110
- 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 resistance100
Power consumption3.1, plus Signalling outputs
Type of actuationDC
Rated operating voltage24 −15 / +20, residual ripple 10
Electronic protection (Y/N)Yes
Fuse rating for the operating voltageInternal electronic trip, tripping current > 1.25 A, Reset after approximately 1 second/s
 
Inputs
 
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 length1500 with 1.5 ;
2500 with 2.5
Conduction resistance40
 
Outputs
 
Stop category0
Number of safety contacts2
Number of auxiliary contacts0
Number of signalling outputs2
Switching capacity
- Switching capacity of the safety contacts24 , 4 A ohmic (inductive in case of appropriate protective wiring)
- Switching capacity of the signaling/diagnostic outputsL54/L84: 50
LA1/LA2: 500 ; 150
Fuse rating
- Protection of the safety contacts4 A slow blow
- Fuse rating for the signaling/diagnostic outputsT 0,5 A slow blow
Utilisation category To EN 60947-5-1DC-13: 24 V / 2 A
Number of undelayed semi-conductor outputs with signaling function0
Number of undelayed outputs with signaling function (with contact)2
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´s8
LED switching conditions display
- The integrated LEDs indicate the following operating states.
- Position relay K3
- Position relay K5
- Position relay K2
- Position relay K1
- Position relay K4
- Supply voltage
- Internal operating voltage
- Position of the muting signalling device LA
 
Miscellaneous data
 
Applications muting function
 
Dimensions
 
Dimensions
- Width45
- Height100
- Depth121
 
notice
 
Inductive loads (e.g. contactors, relays, etc.) are to be suppressed by means of a suitable circuit.
 
notice - Wiring example
 
The example shows a 2-channel control of 2 muting sensors and an external master reset button.
Relay outputs: Suitable for 2 channel control, for increase in capacity or number of contacts by means of contactors or relays with positive-guided contacts.
(H2) = Feedback circuit
The control recognises cross-short, cable break and earth leakages in the monitoring circuit.
F1 = Electronic fuse
The wiring diagram is shown with non-actuated muting sensors 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 17.09.2019 - 16:36:11h Kasbase 3.3.0.F.64I