STP4A-2131A024M (Order no. 091494)

Safety switch STP with door monitoring contact

Actuating head made of metal
Auxiliary release on the front
With door monitoring contact

Description

Approach direction

Horizontal and vertical, can be adjusted in 90° steps

Solenoid operating voltage

AC/DC 24 V +10%, -15%

Guard locking type

STP4	Open-circuit current principle, guard locking by applying voltage to the guard locking solenoid. Release by spring force.

Switching element

2131	Slow-action switching contact 2 NC + 1 NO + 1 NC (door monitoring contact)

Auxiliary release

This is used for releasing the guard locking with the aid of a tool. To protect against tampering, the auxiliary release is sealed with sealing lacquer.

Electromechanical safety switches in use

Functional drawings

Dimensional drawings

1	Auxiliary release
2	Locking screw

Connection examples

	Door monitoring
	Solenoid monitoring

Technical data

Approvals

Electrical connection values

Power consumption	8 W
Connection cross section	0.34 - 1.5 mm²
Rated insulation voltage Ui	250 V
Rated impulse withstand voltage Uimp	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 Ith	4 A

Mechanical values and environment

Approach speed	max. 20 m/min
Approach direction	A
Connection type	3 x M20 x 1.5
Number of door position NC contacts	1
Number of guard lock monitoring NO contacts	1
Number of guard lock monitoring positively driven contacts	2
Extraction force	30 N
Actuation frequency	max. 1200 1/h
Actuating force	35 N
Installation orientation	any
Insertion depth	24.5 mm
Mechanical life	1 x 10⁶
Retention force	20 N
Switching principle	Slow-action switching contact
Degree of protection	IP67
Ambient temperature	-20 ... +55 °C
Material
Contact	Silver alloy, gold flashed
Housing	Reinforced thermoplastic
Locking force Fmax	2500 N
Locking force FZh	2000 N
Guard locking principle	Open-circuit current principle