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

TK2-4131AB024SM8 (Order no. 114819)

Safety switch TK, locking pin right, plug connector M12, open-circuit current principle

  • Mounting on plastic housing TP with actuating head and locking pin made of metal
  • High locking forces of 5000 N
  • Auxiliary release on the switch head
  • Actuating element for contact separation on the front
  • Plug connector M12
TK2-4131AB024SM8 (Order no. 114819)


Solenoid operating voltage

  • AC/DC 24 V +10%, -15%

Guard locking type


Open-circuit current principle, guard locking by applying voltage to the guard locking solenoid. Release by spring force.

Switching element


Slow-action switching contact 2 NC + 2 NO

Auxiliary release

This is used for releasing the guard locking with the aid of a tool.

Contact separation

When actuated, positively driven contacts 21-22 and 41-42 are opened. Guard locking is not fully unlocked. The auxiliary release must be sealed to prevent tampering (e.g. with sealing lacquer).

Switching function
Switching function
Dimension drawing
Dimension drawing
Connector assignment
Connector assignment
Wiring diagram 4131
Wiring diagram 4131
Electromechanical safety switches in use

Functional drawings

Functional drawings

Dimensional drawings

Dimensional drawings
1Auxiliary release on both sides
2Contact separation
Plug not aligned

Connection examples

Connection examples

Connection examples

Connection examples

Technical data


EAC_RU C-DE.MO05.B.00971/20c_UL_us_E155795_2/4CCC_2020980305000541_CQC2008010305306207

Electrical connection values

Power consumption 8 W
Rated insulation voltage Ui 30 V
Rated impulse withstand voltage Uimp 1.5 kV
Utilization category
DC-13 1 A 24 V
AC-15 1 A 24 V
Short circuit protection according to IEC 60269-1 1A gG
Solenoid operating voltage
AC/DC 24 V -15% ... +10%
Solenoid duty cycle 100 %
Switching voltage
min. at 10 mA 12 V
thermal rated current Ith 1 A

Mechanical values and environment

Approach direction A
Connection type Plug connector M12 (8-pin)
Number of guard lock monitoring NO contacts 1
Number of guard lock monitoring positively driven contacts 2
Actuation frequency max. 1200 1/h
Installation orientation any
Mechanical life 1 x 10⁶
Switching principle Slow-action switching contact
Degree of protection IP67
Ambient temperature -20 ... +55 °C
Contact Silver alloy, gold flashed
Housing Reinforced thermoplastic
Locking force Fmax 5000 N
Guard locking principle Open-circuit current principle

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

B10DMission time
Monitoring of guard locking2x10620 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, 3,6 MB)

Single Documents

Other Documents

Ordering data

Ordernumber 114819
Item designation TK2-4131AB024SM8
Gross weight 0,62kg
Customs tariff number 85365019000
ECLASS 27-27-26-03 Safety switch with guard control

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