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

TK1-4131AB024M (Order no. 099686)

Safety switch TK, locking pin right, closed-circuit current principle

  • Mounting on plastic housing TP with actuating head and guard 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
  • Cable entry M20 x 1.5
TK1-4131AB024M (Order no. 099686)


Solenoid operating voltage

  • AC/DC 24 V +10%, -15%

Guard locking type

TK1Closed-circuit current principle, guard locking by spring force. Release by applying voltage to the guard locking solenoid.

Switching element

4131Slow-action switching contact 2 NC + 2 NO

Auxiliary release

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).

Dimension drawing
Dimension drawing
Switching functions
Switching functions
Electro-mechanical safety switches

Dimension drawing

Dimension drawing
1Auxiliary release on both sides
2Contact separation



Switching functions

Switching functions

Technical data


Zulassung EACZulassung c_UL_us LISTEDZulassung CCC

Mechanical values and environment

Housing material
Housing Reinforced thermoplastic
Net 0,6 kg
Ambient temperature -20 ... 55 °C
Degree of protection IP67
Mechanical life 1 x 106
Contact material Silver alloy, gold flashed
Switching principle Slow-action switching contact
Installation orientation Any
Number of door position positively driven contacts 2
Number of NO contacts 2
3 x M20 x 1.5
Actuation frequency max.1200 1/h
Guard locking principle Closed-circuit current principle
Locking force Fmax 5000 N

Electrical connection ratings

Thermal rated current Ith 4 A
Utilization category according to EN 60947-5-1
AC-15 4A 230V
DC-13 4A 24V
Solenoid operating voltage
AC/DC 24 V -15% ... +10%
Short circuit protection according to IEC 60269-1 4A gG
Rated insulation voltage Ui 250 V
Rated impulse withstand voltage Uimp 2,5 kV
Switching voltage
Min. at 10mA 12 V
Switching current
Min. at 24V 1 mA
Power consumption 8 W
Solenoid duty cycle 100 %
Connection cross-section 0,34 ... 1,5 mm²

Reliability values according to EN ISO 13849-1

Monitoring of guard locking
B10D 2 x 106
Control of the guard locking
Category Depending on external control of guard locking
Performance Level Depending on external control of guard locking
PFHD Depending on external control of guard locking


Technical support

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

+44 114 2560123

+1 315 701-0315