HomeProductsElectromechanical safety switches with guard lockingTK very high locking forceTK1-528AB024M

TK1-528AB024M (Order no. 094652)

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Safety switch TK, cable entry M20 x 1.5

3 x cable entry M20 x 1.5
Auxiliary release on the switch head
Without prevention of inadvertent locking position (faulty closure protection)
Guard locking pin right
Closed-circuit current principle

Description

Guard locking principle

closed-circuit current (power to unlock): In a safety guard with guard locking according to the closed-circuit current principle, the guard is locked by spring force until the guard locking solenoid is supplied with current. The guard is unlocked by means of magnetic force. This is also referred to as mechanical guard locking.

Switching element

528	Slow-action switching contact
	Contacts for guard locking: 1 positively driven, positively driven contact 1 NO contact

Auxiliary release with triangular wedge

The auxiliary release on the switch head allows access to the machine in the event of a malfunction, e.g. a power failure. It is unlocked using a tool or a key. The auxiliary release must be secured against misuse (sealing, laking).

Contact separation

When actuated, the contacts are opened. The guard locking is not completely released. To prevent tampering, the contact separation must be sealed (e.g. with sealing lacquer).

Without prevention of inadvertent locking position (faulty closure protection)

The TK safety switch does not have a prevention of inadvertent locking position (faulty closure protection). This must be implemented separately.

Electromechanical safety switches in use

Functional drawings

Dimensional drawings

1	Auxiliary release on both sides
2	Contact separation

Connection examples

Technical data

Approvals

Electrical connection values

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

Mechanical values and environment

Approach direction	A
Connection type
3 x	M20 x 1.5
Number of guard lock monitoring NO contacts	1
Number of guard lock monitoring positively driven contacts	1
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
Material
Housing	Reinforced thermoplastic
Contact	Silver alloy, gold flashed
Locking force F_max	5000 N
Guard locking principle	Closed-circuit current principle

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

	B10_D	Mission time
Monitoring of guard locking	2x10⁶	20 y
Monitoring of guard locking	Important! Values valid at DC-13 100 mA/24V

	PL	Maximum SIL	Category	Mission time
Control of guard locking	Depending on external control of guard locking			20 y

Accessories

Connection material

Cable glands M20x1.5, cable Ø 6-12 mm

086233
EKPM20/06 086233

Spare parts

Triangular key for safety switch TK

103057
DREIKANTSCHLUESSEL

Downloads

Complete package

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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

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