The BN 85-R from Schmersal is a magnetic proximity switch with a latching function, specifically designed for use in safety-critical applications, including elevator systems. The sensor features a front-facing actuation plane and offers a minimum mechanical lifespan of 1 billion switching cycles, making it highly durable.

The housing is made of glass-fiber reinforced thermoplastic, providing robustness and resistance to wear and tear. With an IP40 protection rating, the BN 85-R is protected against solid objects but not waterproof. It can operate at a maximum actuation speed of 18 m/s and in ambient temperatures ranging from 0 °C to +75 °C.

The sensor comes with a 1-meter cable and supports a wire cross-section of 0.75 mm² (18 AWG). The maximum switching distance is up to 40 mm, depending on the actuator magnet used.

Important Note: The actuator is not included in the delivery. Recommended actuator magnets include BP 10 S, BP 15 S, and BP 34 S.
Technical Data:

Product Type Designation:

BN 85-R

Article Number (Order Number):

101091836

EAN (European Article Number):

4030661023472

eCl@ss Numbers:

Version 12.0: 27-27-43-02
Version 11.0: 27-27-01-05
Version 9.0: 27-27-01-05

ETIM Numbers:

Version 7.0: EC002544
Version 6.0: EC002544

General Data:

Operating Principle:

Magnetic

Housing Design:

Cuboid

Housing Material:

Plastic, glass-fiber reinforced thermoplastic

Gross Weight:

40 g

Latching:

Yes

Suitable for Elevators:

Yes

Number of Latching Contacts:

1

Mechanical Data:

Actuation Plane:

Front

Actuation Element:

Magnet

Mechanical Lifespan, Minimum:

1,000,000,000 switching cycles

Maximum Actuation Speed:

18 m/s

Mounting:

Clamp legs and 2 single wires

Switching Distances According to EN IEC 60947-5-3:

Switching Distance Sn:

2 mm to 40 mm, depending on the actuator magnet

Examples:

BP 6S = 2 to 12 mm
BP 10S = 5 to 20 mm
BP 34S = 10 to 40 mm

Connection Technology:

Cable Length:

1 m

Connection Type:

Cable

Wire Cross-Section:

0.75 mm²
18 AWG

Cable Sheath Material:

LiY

Dimensions:

Sensor Length:

16.5 mm

Sensor Width:

40 mm

Sensor Height:

35 mm

Environmental Conditions:

Degree of Protection:

IP40

Ambient Temperature:

0 °C to +75 °C

Shock Resistance:

60 g, sinusoidal vibration

Electrical Data:

Maximum Switching Voltage:

60 VDC

Maximum Switching Current:

1 A

Maximum Switching Power:

30 W

Switching Element:

Latching

Maximum Bounce Time:

0.2 ms

Digital Outputs:

Switching Element Type:

Reed Contact

Included Items:

The actuator is not included in the delivery.

Accessories:

Recommended Actuators:

BP 10 S
BP 15 S
BP 34 S

Recommended Actuators for Elevator Applications:

BP 10
BP 6
BP 15

Note (General):

The NO or NC function depends on the actuation direction, the actuator magnet, and the magnet's polarity.