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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• Level switch for silos and storage containers
• Aluminium enlosure, Detection cone
• Can be actuated from any direction
• Disabling at 30° deflection or in case of pressure from the bottom
• 1 Normally open contact (NO) / 1 Opener (NC)
• Mounting position vertical
• Ambient temperature −30 … +90
• Protection class IP65

Ordering details
Product type descriptionMAF/S 441-11Y
Article number103006789
EAN Code
Global Properties
Permanent lightMAF/S 441 Niveauschalter
StandardsEN 60947-5-1
Compliance with the Directives (Y/N) Yes
Suitable for safety functions (Y/N)No
Standard housing (Y/N)No
- Material of the housingsAluminium
- Material of the detection conePlastic
- Material of the contactsSilver
Housing coatingpainted
Mechanical data
Design of electrical connectionScrew connection
Cable section
- Min. Cable section1.5
- Max. Cable section2.5
Active principlemechanical
Mechanical life1.000.000 operations
noticeAll indications about the cable section are including the conductor ferrules.
Design of actuating elementDetection cone
Actuating force14 N
Bounce duration≤ 5
Switchover time≤ 35
Actuating speed
- Min. Actuating speed1
- Max. Actuating speed1
Ambient conditions
Ambient temperature
- Min. environmental temperature−30
- Max. environmental temperature+90
Protection classIP65 to IEC/EN 60529
Electrical data
Design of control elementNormally open contact (NO), Opener (NC)
- Change-over contact with double break
- galvanically separated contact bridges
Switching principleSnap switch element
Number of shutters1
Number of openers1
Rated impulse withstand voltage4
Rated insulation voltage250
Thermal test current16 A
Utilisation categoryAC-15: 250 V / 4 A
Max. fuse rating16 A gG D-fuse
Dimensions of the sensor
- Width of sensor106
- Height of sensor438
- Length of sensor61
Durchmesser Detection cone90 mm

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 18.09.2019 - 01:28:20h Kasbase 3.3.0.F.64I