EUCHNER – More than safety.
EUCHNER – More than safety.

NZ1RK-2131-M (Order no. 090907)

Safety switch NZ.RK, roller plunger, steel roller ø 8 mm

  • Steel roller ø 8 mm
  • Cable entry M20 x 1.5
NZ1RK-2131-M (Order no. 090907)


Approach direction


Can be adjusted in 90° steps

Switching element


Slow-action switching contact 3 NC + 1 NO

Dimension drawing
Dimension drawing
Wiring diagram 2131H
Wiring diagram 2131H
Travel diagram
Travel diagram
Electromechanical safety switches in use

Dimensional drawings

Dimensional drawings
1Operating point NO contact 33-34
2Operating point NC contact 11-12
3Operating point NC contact 21-22, 41-42
4Free position

Connection examples

Connection examples

Shift travel diagrams

Shift travel diagrams
Contacts closed
Contacts open
Contacts positively driven

Technical data


EAC_RU C-DE.MO05.B.00971/20DNV-GL_TAA0000172 Rev. 1DGUV_NZ_ET 23025_ET 23026c_UL_us_E155795_2/1

Electrical connection values

Connection cross section 0.34 ... 1.5 mm²
Rated insulation voltage Ui 250 V
Rated impulse withstand voltage Uimp 2.5 kV
Utilization category
AC-15 4 A 230 V
DC-13 4 A 24 V
Short circuit protection according to IEC 60269-1 4A gG
Switching current
min. at DC 24V 1 mA
thermal rated current Ith 4 A

Mechanical values and environment

Approach speed 0.1 ... 50 m/min
Connection type
1 x M20 x 1.5
Number of NO contacts 1
Number of door position positively driven contacts 3
Actuating element
Slide bearing metal Roller plunger (d roller = 8 mm)
Actuating force 15 ... 30 N
Installation orientation any
Mechanical life 30 x 10⁶
Switching principle Slow-action switching contact
Degree of protection IP67
Ambient temperature -25 ... +80 °C
Contact Silver alloy, gold flashed
Housing Anodized die-cast alloy

Characteristic values according to EN ISO 13849-1 and EN IEC 62061

B10DMission time
Sichere Positionserkennung2x10720 y
Important! Values valid at DC-13 100 mA/24V


Complete package

Download all important documents with a single click.


  • 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
Download Complete Package (ZIP, 4,7 MB)

Single Documents

Other Documents

Ordering data

Ordernumber 090907
Item designation NZ1RK-2131-M
Gross weight 0,323kg
Customs tariff number 85365019000
ECLASS 27-27-26-01 Safety position switch (Type 1)

Technical support

Technical support
Do you have technical questions about our products, their possible use or applications? Our experts will be happy to help.

+1 315 701-0315