Operating Instructions
Safety Switch STA-TW... (Twin)
Technical data
Parameter
Value
Housing material
Die-cast alloy
Degree of protection
IP 67
acc. to IEC 60529
Mechanical life
1x10
operating cycles
6
Ambient temperature
-20 ... +55 °C
Degree of contamination
3 (industrial)
(external, acc. to EN 60947-1)
Installation position
Any
Approach speed, max.
20 m/min
Extraction force (not locked)
30 N
Retention force
20 N
Actuating force, max.
35 N
Actuation frequency
1,200/h
Switching principle
Slow-action switching contact
Contact material
Silver alloy, gold flashed
Connection
Cable entry M20x1.5
Conductor cross-section
0.34 ... 1.5 mm
rigid/flexible
Operating voltage for optional
L024 24 V
LED indicator
Rated insulation voltage
STA-TW...
U
= 250 V
i
Rated impulse withstand voltage
STA-TW...
U
= 2.5 kV
imp
Conditional short-circuit
100 A
current
Switching voltage, min.,
12 V
at 10 mA
Utilization category
AC-15 4 A 230 V /
acc. to IEC 60947-5-1
DC-13 4 A 24 V
Switching current, min.,
1 mA
at 24 V
Short circuit protection
(control circuit fuse) acc. to
4 A gG
IEC 60269-1
Conventional thermal cur-
4 A
rent I
th
Solenoid operating voltage/solenoid power consumption
STA-TW...024
AC/DC 24 V (+10%/-15%) 8 W
Duty cycle
100%
Power consumption
8 W
Locking force F
max
Straight actuator with bush
2,500 N
Bent actuator with bush
1,500 N
F
Locking force F
acc. to
max
Zh
(F
=
Zh
EN ISO 14119
1.3
Reliability values acc. to EN ISO 13849-1
B
4.5 x 10
6
10d
Hinged actuator S-OU-SN
20
20
35,50
35,50
Figure 4: Minimum door radii
2
Type
STA-TW-3-2131..
STA-TW-3-4121..
) = 2,000 N
Figure 3: Switching elements and switching functions
20
35,50
Guard closed and locked
E1
E1
E2
E2
Hinged actuator S-LR-SN
20
35,50
7
Guard closed and not
locked
E1
E2
Actuator
Actuator-S-G...
Actuator-S-W...
Hinged actuator-S-OU...
Hinged actuator-S-LR...
Guard open
Door radius,
min. [mm]
300
300
200
200