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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• Actuation from side
• Non-contact principle
• without bias magnet
• Long life
• Thermoplastic enclosure
• Actuating distance up to 60 mm depending on actuating magnet and version
• Design Ø 10.7 mm
• with central mounting
• With pre-wired cable

Ordering details
Product type descriptionBN 120-10Z/1
Article numberBN 120-10Z/1
EAN Code
Global Properties
Permanent lightBN 120
Compliance with the Directives (Y/N) Yes
suitable for elevators (Y/N)No
Mountingcentral with threated flange M12 x 1
Active principleMagnetic drive
- Material of the housingsPlastic, glass-fibre reinforced thermoplastic
- Material of the cable mantleLiYY
Housing construction formcylinder, thread
Recommended actuatorBP 10, 2 x BP 10, BP 15, 2 x BP 15, 2 x BP 15/2, BP 34, BP 20, BP 31, BP 11, BP 12, BP 21
Mechanical data
Design of electrical connectionCable
Cable length1
Conductors2 x 0,25
Mechanical life10.000.000 operations
Electrical lifetime1.000.000 … 10.000.000 operations
Actuating planesActuation from side
Active arealateral
Switch distance5 … 50
BP 10 = 5 mm
2 x BP 10 = 17 mm
BP 15 = 6 mm
2 x BP 15 = 17 mm
2 x BP 15/2 = 17 mm
BP 34 = 15 ... 20 mm
BP 20 = 20 mm
BP 31 = 20 mm
BP 11 = 20 mm
BP 12 = 10 ... 30 mm
BP 21 = 25 ... 50 mm
- noticeActuating distance up to 50 mm depending on actuating magnet and version
Type of actuationMagnet
restistance to shock30 / 11
Resistance to vibration10 … 55 HZ, Amplitude 1 mm
Latching (Y/N)No
bias magnet (Y/N)No
Tightening torque for nuts90
Switching point accuracy± 0,25 mm
Ambient conditions
Ambient temperature
- Min. environmental temperature−25
- Max. environmental temperature+70
Protection classIP67
Electrical data
Design of control elementOpener (NC)
Number of shutters1
Number of openers0
Voltage type
Dielectric strength580
Switching voltage200
Switching current1 A
Switching capacity30 /
Design of control outputReed contakts
LED switching conditions display
LED switching conditions display (Y/N)No
Explosion protection categories for gasesNone
Explosion protected category for dustsNone
Dimensions of the sensor
- Length of sensor71
- Diameter of sensor10.7
The opening and closing functions depend on the direction of actuation, the actuating magnets and the polarity of the actuating magnets.
When the switches and actuators come together, the colours must coincide: Red (S) to red (S) and green (N) to green (N). This does not apply to the bistable contact.
The switch is to be mounted on iron with a non-magnetic layer of at least 20 mm.
Included in delivery
Actuators must be ordered separately.

Note Diagram
  positive break NC contact
  no active
  Normally-open contact
  Normally-closed contact

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 19.09.2019 - 16:45:06h Kasbase 3.3.0.F.64I