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 locking pin made of metal
  • High locking forces of 5,000 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


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

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).

Function Drawing
Function Drawing
Dimension drawing
Dimension drawing
Wiring drawing<br>4131 (without door monitoring contact)
Wiring drawing
4131 (without door monitoring contact)
Electro-mechanical safety switches

Function drawings

Function drawings

Dimension drawings

Dimension drawings
1Auxiliary release on both sides
2Contact separation

Connection examples

Connection examples
Solenoid monitoring

Technical data


EAC_RU C-DE.MO05.B.00971/20c_UL_us_E155795_2/1CCC_2020980305000541_CQC2008010305306207

Electrical connection ratings

Connection cross-section 0.34 ... 1.5 mm²
Power consumption 8 W
Rated impulse withstand voltage Uimp 2.5 kV
Rated insulation voltage Ui 250 V
Short circuit protection according to IEC 60269-1 4A gG
Solenoid duty cycle 100 %
Solenoid operating voltage
AC/DC 24 V -15% ... +10%
Switching current
min. at 24 V 1 mA
Switching voltage
min. at 10 mA 12 V
thermal rated current Ith 4 A
Utilization category
DC-13 4A 24V
AC-15 4A 230V

Mechanical values and environment

Actuation frequency max. 1200 1/h
Ambient temperature -20 ... +55 °C
Approach direction A
3 x M20 x 1.5
Degree of protection IP67
Guard locking principle Closed-circuit current principle
Installation orientation any
Locking force Fmax 5000 N
Contact Silver alloy, gold flashed
Housing Reinforced thermoplastic
Mechanical life 1 x 10⁶
Number of guard lock monitoring NO contacts 2
Number of guard lock monitoring positively driven contacts 2
Switching principle Slow-action switching contact

Reliability values according to EN ISO 13849-1

Control of 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
Monitoring of guard locking
B10d 2 x 10⁶


Technical support

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

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+1 315 701-0315