HomeProductsSafety engineering according to ATEX directiveElectromechanical safety switches according to ATEX directiveNZ1HS-3131-M-EX
Safety switch NZ.HS ATEX, lever arm with steel roller
- ATEX version
- Version A according to EN 50041 (steel roller ø 18 mm)
- Suitable for use in zones 2 and 22 (gases and dusts)
- Cable entry M20 x 1.5
![NZ1HS-3131-M-EX (Order no. 094167)](https://assets2.euchner.de/files/53/42/ast_735342_xl.png)
Description
Switching direction
- Right, left or both sides
Switching element
3131H | Slow-action switching contact 2 NC |
Dimensional drawings
![Dimensional drawings](https://assets2.euchner.de/files/48/23/ast_634823.png)
1 | Cover hood |
2 | Cable gland M20x1.5 (included) for cable diameter 6.5... 12 mm |
3 | Dog |
4 | Contact opening |
5 | Ground switch via cable lug to prevent electrostatic charging. Cable cross-section |
Connection examples
![Connection examples](https://assets2.euchner.de/files/55/90/ast_655590.png)
Shift travel diagrams
![Shift travel diagrams](https://assets2.euchner.de/files/43/95/ast_654395.png)
![]() | Contacts closed |
![]() | Contacts open |
![]() | Contacts positively driven |
Technical data
Approvals
![EAC_RU C-DE.MO05.B.00971/20](https://assets2.euchner.de/files/06/97/ast_630697_m.png)
![DNV-GL_TAA0000172 Rev. 1](https://assets2.euchner.de/files/07/53/ast_630753_m.png)
![c_UL_us_E155795_2/1](https://assets2.euchner.de/files/82/74/ast_628274_m.png)
Electrical connection values
Connection cross section | 0.34 ... 1.5 mm² |
Rated insulation voltage Ui | 50 V |
Rated impulse withstand voltage Uimp | 2.5 kV |
Utilization category | |
AC-15 | 4 A 50 V |
DC-13 | 4 A 24 V |
Short circuit protection according to IEC 60269-1 | 4A gG |
Switching voltage | 12 V |
Switching current | |
min. at DC 24V | 1 mA |
thermal rated current Ith | 4 A |
Mechanical values and environment
Approach speed | 0.1 ... 60 m/min |
Connection type | |
1 x | Cable gland M20 x 1.5 |
Number of NO contacts | 2 |
Number of door position positively driven contacts | 2 |
Actuating element | |
Slide bearing metal | Lever arm (d roller = 18 mm, length 32 mm) |
Actuation frequency | max. 1200 1/h |
Actuating force | |
at 20 °C | 30 N |
Installation orientation | any |
Clamping range for cable | 6.5 ... 12 mm |
Mechanical life | 30 x 10⁶ |
Switching principle | Slow-action switching contact |
Degree of protection | IP67 |
Ambient temperature | -25 ... +80 °C |
Material | |
Housing | Anodized die-cast alloy |
Contact | Silver alloy, gold flashed |
Characteristic values according to EN ISO 13849-1 and EN IEC 62061
Monitoring of the guard position | |
B10D | 20 x 10⁶ |
Miscellaneous
Explosion protection | |
incl. cable gland | II3G Ex nR IIB T5 Gc X / II3D Ex tc IIIC T90°C Dc |
Downloads
Complete package
Download all important documents with a single click.
Content:
- The operating instructions and any additions to the operating instructions or brief instructions
- Any data sheets to supplement the operating instructions
- The declaration of conformity
Single Documents
Declarations of conformity
EU-Konformitätserklärung
Doc. no.
Version
Language
Size
![Doc. no. EDC2093482](https://assets2.euchner.de/files/96/17/ast_3149617_thumb.jpg)
EU-Konformitätserklärung
Doc. no.
EDC2093482
Version
Language
Size
0,2 MB
UKCA-Konformitätserklärung
Doc. no.
Version
Language
Size
![Doc. no. EDC20001468](https://assets2.euchner.de/files/25/02/ast_2962502_thumb.jpg)
UKCA-Konformitätserklärung
Doc. no.
EDC20001468
Version
Language
Size
0,2 MB
Instructions
Operating Instructions Safety Switch NZ.H...EX
Doc. no.
Version
Language
Size
![Doc. no. 2094175](https://assets2.euchner.de/files/10/73/ast_3221073_thumb.jpg)
Operating Instructions Safety Switch NZ.H...EX
Betriebsanleitung Sicherheitsschalter NZ.H...EX
Betriebsanleitung Sicherheitsschalter NZ.H...EX
Doc. no.
2094175
Version
03/24
Language
Size
1,5 MB
![Doc. no. 2094175](https://assets2.euchner.de/files/80/08/ast_3258008_thumb.jpg)
Mode d’emploi Interrupteur de sécurité NZ.H...EX
Doc. no.
2094175
Version
03/24
Language
Size
0,8 MB
![Doc. no. 2094175](https://assets2.euchner.de/files/80/09/ast_3258009_thumb.jpg)
Manual de instrucciones Interruptor de seguridad NZ.H...EX
Doc. no.
2094175
Version
03/24
Language
Size
0,8 MB
![Doc. no. 2094175](https://assets2.euchner.de/files/80/90/ast_3178090_thumb.jpg)
Betriebsanleitung Sicherheitsschalter NZ.H...EX
Doc. no.
2094175
Version
03/24
Language
Size
0,8 MB
Other Documents
Approvals and certificates
DNV-GL
Doc. no.
Version
Language
Size
![Doc. no.](https://assets2.euchner.de/files/68/20/ast_2576820_thumb.jpg)
DNV-GL
Doc. no.
Version
Language
Size
0,2 MB
c UL us
Doc. no.
Version
Language
Size
![Doc. no.](https://assets2.euchner.de/files/33/82/ast_743382_thumb.jpg)
c UL us
Doc. no.
Version
Language
Size
0,3 MB
Sales documents
ATEX - Safety switches for potentially explosive atmospheres
Doc. no.
Version
Language
Size
![Doc. no. 136805](https://assets2.euchner.de/files/18/60/ast_431860_thumb.jpg)
ATEX - Safety switches for potentially explosive atmospheres
Doc. no.
136805
Version
05-10/20
Language
Size
0,9 MB
![Doc. no. 136806](https://assets2.euchner.de/files/18/34/ast_431834_thumb.jpg)
ATEX - Interrupteurs de sécurité pour atmosphères explosibles
Doc. no.
136806
Version
05-10/20
Language
Size
0,9 MB
![Doc. no. 136807](https://assets2.euchner.de/files/18/77/ast_431877_thumb.jpg)
ATEX - Interruptores de seguridad para uso en atmósferas potencialmente explosivas
Doc. no.
136807
Version
05-10/20
Language
Size
0,9 MB
![Doc. no. 136804](https://assets2.euchner.de/files/18/53/ast_431853_thumb.jpg)
ATEX - Sicherheitsschalter für explosionsgefährdete Bereiche
Doc. no.
136804
Version
05-10/20
Language
Size
0,6 MB
CAD data
Ordering data
Ordernumber | 094167 |
Item designation | NZ1HS-3131-M-EX |
Gross weight | 0,536kg |
Customs tariff number | 85365019000 |
ECLASS | 27-27-26-01 Safety position switch (Type 1) |