EX-BN 20-10Z-3G/D

Item number: 101189041


TraceParts CAD Data
ePLAN Data
Product type description:

EX-BN 20-(1)Z-3G/D

011 NC contact
022 NC contact
101 NO contact
202 NO contacts
111 NC contacts / 1 NO contact
R1 bistable contact
2R2 bistable contact
11R2 bistable contact NC / NO
Not all component variants, which are possible according to this order code are available and/or technically feasible.
  • 1 Reed contakts
  • Explosion protection for ATEX Zones 2 and 22
  • Aluminium enlosure
  • 104 mm x 52 mm x 47 mm
  • Actuating distance up to 50 mm depending on actuating magnet and version
  • Non-contact principle
  • Screw connection

Ordering data

Product type description

EX-BN 20-10Z-3G/D

Article number (order number)


EAN (European Article Number)


eCl@ss number, version 12.0


eCl@ss number, version 11.0


eCl@ss number, version 9.0


ETIM number, version 7.0


ETIM number, version 6.0


Explosion protection

Explosion protection: regulations

EN IEC 60079-0

EN IEC 60079-15

EN 60079-31

Explosion protection zones



Explosion protection category



Explosion protection designation

D II 3G Ex nC IIC T5 Gc X

D II 3D Ex tc IIIC T90°C Dc X

Manufacturer declaration

ATEX Zone 2 and 22

General data

Working principle

Magnetic drive

Housing construction form


Housing material

Light-alloy diecast, paint finish

Active area

Metal film

Gross weight

315 g

General data - Features

bias magnet


Number of normally open (NO)


Mechanical data

Actuating panels


Active area


Actuating element


Mechanical life, minimum

1,000,000,000 Operations

Impact energy, maximum

4 J

Actuating speed, maximum

18 m/s

Mechanical data - Switching distances according EN IEC 60947-5-3

Switching distance Sn

12 mm ... 45 mm

Note (Switching distance Sn)

Actuating distance up to 45 mm depending on version and actuating magnet

Repeat accuracy R

0.3 mm

Mechanical data - Connection technique


Screw terminals M20 x 1.5

Cable cross-section of the cable glands, minimum

6 mm

Cable cross-section of the cable glands, maximum

10 mm

Mechanical data - Dimensions

Length of sensor

47 mm

Width of sensor

104 mm

Height of sensor

52 mm

Ambient conditions

Degree of protection


Ambient temperature

-15 ... +70 °C

Storage and transport temperature

-25 ... +70 °C

Resistance to vibrations

10 … 55 Hz, amplitude 1 mm

Restistance to shock

30 g / 11 ms

Resistant to vibration

50 g, on sine wave oscillation

Electrical data

Switching voltage, maximum

250 VAC

Switching voltage, maximum

250 VDC

Switching current, maximum

3 A

Switching capacity, maximum

120 W

Switching capacity, maximum

120 VA

Switching element

Normally open contact (NO)

Bounce duration, minimum

0.3 ms

Bounce duration, maximum

0.6 ms

Electrical data - Digital Output

Design of control elements

Reed contacts

Scope of delivery

Scope of delivery

Actuator must be ordered separately.

Ex-certified screwed cable gland


Recommendation (actuator)

2x BP 10

2x BP 15/2

BP 20

BP 31

BP 11

BP 12

BP 21

BE 20


Note (General)

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).


EU Conformity Declaration
EU Declaration of Conformity LOG_COM_lo1de01s

K.A. Schmersal GmbH & Co. KG
Möddinghofe 30
42279 Wuppertal
Internet: www.schmersal.com
Declaration:We hereby certify that the hereafter described components both in their basic design and construction conform to the applicable European Directives.
Name of the component:EX-BN 20
Type:See ordering code
Marking:D II 3G Ex nC IIC T5 Gc X
D II 3D Ex tc IIIC T90°C Dc X
Description of the component:Magnetic reed switches
Relevant Directives:Explosion Protection Directive (ATEX)2014/34/EU
Applied standards:EN IEC 60079-0:2018
EN IEC 60079-15:2019
EN 60079-31:2014
Notified body, which approved the full quality assurance system, referred to Appendix IV, 2014/34/EU:TÜV Rheinland Industrie Service GmbH
Am Grauen Stein, 51105 Köln
ID n°: 0035
Person authorised for the compilation of the technical documentation:Oliver Wacker
Möddinghofe 30
42279 Wuppertal
Place and date of issue:Wuppertal, September 21, 2023
 Authorised signature
Philip Schmersal
Managing Director

Schmersal Ltd., Sparrowhawk Close, WR14 1GL Malvern

The details and data referred to have been carefully checked. Images may diverge from original. Further technical data can be found in the manual. Technical amendments and errors possible.

Generated on: 25/07/2024, 06:46