The BN 20-2RZ-M16 from Schmersal is a rectangular magnetic sensor with a robust aluminum housing. This sensor operates on a magnetic principle and is particularly suitable for safety-critical industrial applications. It features two latching contacts, ensuring precise position monitoring.

With a mechanical lifespan of at least 1 billion switching cycles, the BN 20-2RZ-M16 is highly durable. The sensor has a side actuation plane and active surface. The switching distance is up to 50 mm, depending on the actuator magnet used. The sensor is designed for a maximum actuation speed of 18 m/s.

The BN 20-2RZ-M16 has an IP67 protection rating and operates in a temperature range from -25 °C to +90 °C. The maximum switching voltage is 250 VAC with a switching current of up to 3 A.

Important Note: The actuator is not included in the delivery. Recommended actuators include models like BP 10 S, BP 20 S, BP 21 N, and more.
Technical Data:

Product Type Designation:

BN 20-2RZ-M16

Article Number (Order Number):

101172893

EAN (European Article Number):

4030661301778

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

Approvals - Regulations:

Certificates:

cULus

Standards:

EN IEC 60947-5-1

General Data:

Operating Principle:

Magnetic

Housing Design:

Rectangular

Housing Material:

Aluminum

Active Surface Material:

Metal

Gross Weight:

298 g

Preload Magnet:

Yes

Number of Latching Contacts:

2

Mechanical Data:

Actuation Plane:

Side

Active Surface:

Side

Actuation Element:

Magnet

Mechanical Lifespan, Minimum:

1,000,000,000 switching cycles

Maximum Actuation Speed:

18 m/s

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

Switching Distance Sn:

5 mm to 50 mm, depending on the actuator magnet

Examples:

BP 10S = 5 mm
BP 34N = 10 ... 25 mm
2x BP 21N = 15 ... 50 mm

Repeat Accuracy R:

0.3 mm

Connectivity:

Connection Type:

Screw Connection M20 x 1.5

Dimensions:

Sensor Length:

47 mm

Sensor Width:

104 mm

Sensor Height:

52 mm

Environmental Conditions:

Degree of Protection:

IP67

Ambient Temperature:

-25 ... +90 °C

Vibration Resistance:

50 g, sinusoidal oscillation

Electrical Data:

Maximum Switching Voltage:

250 VAC

Maximum Switching Current:

3 A

Maximum Switching Power:

120 W / 120 VA

Switching Element:

Latching

Bounce Time, Minimum:

0.3 ms

Bounce Time, Maximum:

0.6 ms

Maximum Switching Frequency:

1,080,000 /h

Digital Outputs:

Switching Element Type:

Reed Contact

Included Items:

The actuator is not included in the delivery.

Accessories:

Recommended Actuators:

BP 10 S
BP 20 S
BP 21 N
BE 20 S

Note (General):

The NO or NC function depends on the actuation direction, the actuator magnet, and the magnet's polarity.
When aligning the switch and actuator, color matching is required: red (S) to red (S) and green (N) to green (N).