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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• Mounting hole 30.5 mm
• Mounting mounting flange
• bis 10 mm Front plate thickness
• with Locking sleeve
• 4 Contacts
• Mounting depth 57 mm
• 4 switch position

Ordering details
Product type descriptionWKSC521
Article number101019473
EAN Code
Global Properties
Permanent lightWKS Kreuzschalter
StandardsIEC/EN 60947-5-1, IEC/EN 60947-1
Compliance with the Directives (Y/N) Yes
Suitable for safety functions (Y/N)No
suitable for exterior use (Y/N)Yes
Climatic stressIEC/EN 60068-2-20
Mountingmounting flange
Mounting positionarbitrarily
- Material of the front ringAluminium - anodized
- Material of the bellowsRubber
Material thickness of the sealing bellows1
- Colour of the bellowsBlack
- Colour of the front ringSilver
Locking sleeve (Y/N)Yes
Mechanical data
Design of electrical connectionScrew connection
Cable section
- Min. Cable section0,5
- Max. Cable section2.5
Mechanical life10.000.000 operations
Switching frequency1200 S
noticeAll indications about the cable section are including the conductor ferrules.
Actuating force11
restistance to shock110 / 4 - 30 / 18
Resistance to vibration> 20 / 10 … 200
Latching (Y/N)Yes
Probing possible (Y/N)No
Return to zero position (Y/N)No
Latching positionleft, right, above and bottom zero position
Number of switch positions4
- Position A, B,C, D
Number of directions4
Front plate thickness
- min. front plate thickness1.5
- max. front plate thickness10
Ambient conditions
Ambient temperature
- Min. environmental temperature−25
- Max. environmental temperature+80
Protection classIP65, IP67 to IEC/EN 60529
Degree of pollution3 IEC/EN 60947-1
Electrical data
Design of control elementNormally open contact (NO) / Normally open contact (NO) / Normally open contact (NO) / Normally open contact (NO)
Switching principleCreep circuit element
Number of auxiliary contacts4
Number of safety contacts0
Rated impulse withstand voltage4
Rated insulation voltage400
Thermal test current10 A
Utilisation categoryAC-15: 250 V / 8 A
DC-13: 24 V / 5 A
Max. fuse rating10 A gG D-fuse
- galvanically separated contact bridgesYes
Contacts at position
- A1 Normally open contact (NO)
- B1 Normally open contact (NO)
- C1 Normally open contact (NO)
- D1 Normally open contact (NO)
Number of switching stages4
Number of shutters per direction1
Explosion protection categories for gasesNone
Explosion protected category for dustsNone
- Length of the actuator90
- Mounting depth57
Hole of central anchorage, diameter31
Mounting hole IEC/EN 60947-130.5 + 0,5
Spacing80 x 80

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 07.12.2019 - 01:41:17h Kasbase 3.3.0.F.64I