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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• Multi-evaluation of up to 6 safety guards
• Monitoring of BNS range magnetic safety sensors
• 2 safety contacts, STOP 0
• 6 Signalling outputs
• Additional contacts by means of output expander
• Individual signal outputs for each guard door

Ordering details
Product type descriptionAES 2285
Article number101172211
EAN Code4250116201846
Approval BG
StandardsEN ISO 13849-1, IEC 61508, EN 60947-5-1
PLup d
Control categoryup 3
CCF> 65 points
PFH value≤ 2,0.0 x 10−8/h
SILup 3
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 lightAES 2285
StandardsIEC/EN 60204-1, EN 60947-5-1, IEC 60947-5-3, EN ISO 13849-1, IEC 61508, BG-GS-ET-14, BG-GS-ET-20
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 contactsAgCdO, self-cleaning, positive action
Start conditionsAutomatic or Start button (Optional monitored)
Start input (Y/N)Yes
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)Yes
Pull-in delay
- ON delay with automatic starttyp. 120 ms
- ON delay with reset button≤ 30
Drop-out delay
- Drop-out delay in case of emergency stoptyp. 20 ms / max. 35 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 shock10 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+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
Degree of pollution2
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. 3.6 W / 6.6 VA
Type of actuationDC
Switch frequencymax. 3 HZ
Rated impulse withstand voltage Uimp4 kV
Rated insulation voltage Ui250 V
Rated operating voltage Ue24 VDC −15% / +20%, residual ripple max. 10%
Thermal test current Ithe6 A
Operating current Ie0,125 A
Frequency range50 / 60
Electronic protection (Y/N)Yes
Fuse rating for the operating voltageF1: Internal electronic trip, tripping current > 1 A, Reset after disconnection of supply voltage
Monitored inputs
- Short-circuit recognition (Y/N)Yes
- Wire breakage detection (Y/N)Yes
- Earth connection detection (Y/N)Yes
Number of shutters1 … 6
Number of openers1 … 6
Cable length1500 m with 1.5 mm²;
2500 m with 2.5 mm² (for Rated voltage)
Conduction resistancemax. 40 Ω
Stop category0
Number of safety contacts2
Number of auxiliary contacts2
Number of signalling outputs6
Switching capacity
- Switching capacity of the safety contactsmax. 250 V, 6 A ohmic (inductive in case of appropriate protective wiring)
- Switching capacity of the auxiliary contacts31/32: 24 VDC, 2 A
- Switching capacity of the signaling/diagnostic outputsY1…Y6: 24 VDC, 20 mA
Fuse rating
- Protection of the safety contacts6 A gG D-fuse
- Fuse rating for the auxiliary contacts2 A slow blow
- Fuse rating for the signaling/diagnostic outputsInternal electronic trip, tripping current > 0,2 A
short-circuit proof, p-type
Signalling outputY1…Y6: Guard system 1 … 6 on
Utilisation category To EN 60947-5-1AC-15: 250 V / 6 A
DC-13: 24 V / 6 A
Number of undelayed semi-conductor outputs with signaling function6
Number of undelayed outputs with signaling function (with contact)1
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´s3
LED switching conditions display
- The integrated LEDs indicate the following operating states.
- Position relay K1
- Position relay K2
- Internal operating voltage Ui
Miscellaneous data
Applications Guard system
Safety sensor
- Width45 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 6 guard doors up to PL d and Category 3
Monitoring 6 guard door(s), each with a magnetic safety sensor of the BNS range
Start button (S) with edge detection
The feedback circuit monitors the position of the contactors K3 and K4.
Automatic start: The automatic start is programmed by connecting the feedback circuit to the terminals X1/X3. 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 17.09.2019 - 19:08:45h Kasbase 3.3.0.F.64I