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 202MSL-24V
Article number101181998
EAN Code4250116202577
eCl@ss27-37-19-01
 
Approval
 
Approval USA/CAN
 
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/h (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 202MSL
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 contactsAgSn0, Ag-Ni, self-cleaning, positive action
Weight400
Start conditionsAutomatic with Muting sensors
Start input (Y/N)No
Feedback circuit (Y/N)Yes
Start-up test (Y/N)No
Reset after disconnection of supply voltage (Y/N)Yes
Automatic reset function (Y/N)Yes
Reset with edge detection (Y/N)No
Pull-in delay
- ON delay with automatic starttyp. 200 ms
Drop-out delay
- Drop-out delay in case of power failuretyp. 60 ms
- Drop-out delay in case of emergency stoptyp. 17 ms / ≤ 20 ms
 
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 g / 11 ms
Resistance to vibration To EN 60068-2-610…55 HZ, Amplitude 0,35 mm, ± 15 %
 
Ambient conditions
 
Ambient temperature
- Min. environmental temperature−25 °C
- Max. environmental temperature+45 °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 voltage Uimp4 kV
- 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 resistancemax. 100 mΩ
Power consumption5.6, plus Signalling outputs
Type of actuationDC
Rated operating voltage Ue24 VDC −15% / +20%, residual ripple max. 10%
Frequency range50 / 60 HZ
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 piece
Number of openers2 piece
Cable length1500 m with 1.5 mm²;
2500 m with 2.5 mm²
Conduction resistancemax. 40 Ω
 
Outputs
 
Stop category0
Number of safety contacts2 piece
Number of auxiliary contacts0 piece
Number of signalling outputs2 piece
Switching capacity
- Switching capacity of the safety contactsmax. 24 VDC, 4 A ohmic (inductive in case of appropriate protective wiring)
- Switching capacity of the signaling/diagnostic outputsL54/L84: max. 50 mA
LA1/LA2: max. 500 mA; min. 150 mA
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 piece
Number of undelayed outputs with signaling function (with contact)2 piece
Number of delayed semi-conductor outputs with signaling function.0 piece
Number of delayed outputs with signalling function (with contact).0 piece
Number of secure undelayed semi-conductor outputs with signaling function0 piece
Number of secure, undelayed outputs with signaling function, with contact.2 piece
Number of secure, delayed semi-conductor outputs with signaling function0 piece
Number of secure, delayed outputs with signaling function (with contact).0 piece
 
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 K1
- Position relay K4
- Position relay K3
- Position relay K5
- Position relay K2
- Supply voltage
- Internal operating voltage Ui
- Position of the muting signalling device LA
 
Miscellaneous data
 
Applications muting function
 
Dimensions
 
Dimensions
- Width45 mm
- Height100 mm
- Depth121 mm
 
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 17.02.2019 - 22:29:47h Kasbase 3.3.0.F.64I