Operating Instructions
Safety Switch STM...
Technical data
Parameter
Value
Housing material
Reinforced thermoplastic
Degree of protection
IP67
acc. to IEC 60529
Mechanical life
2 x 10
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
Actuating force max. at 20 °C 35 N
Actuation frequency
1200/h
Switching principle
Slow‑action switching contact
Contact material
Silver alloy, gold flashed
Connection
Cable entry M20 x 1.5
Conductor cross‑section
0.34 ... 1.5 mm²
(flexible/rigid)
Rated insulation voltage
U
= 250 V
i
Rated impulse withstand
U
= 2.5 kV
imp
voltage
Conditional short‑circuit
100 A
current
Switching voltage, min.,
12 V
at 10 mA
Utilization category
AC‑15 4 A 230 V /
acc. to EN 60947‑5‑1
DC‑13 4 A 24 V
Switching current, min.,
1 mA
at 24 V
Short circuit protection
(control circuit fuse)
4 A gG
acc. to IEC 60269‑1
Conv. thermal current I
4 A
th
Solenoid operating voltage/
AC/DC 24 V (+10%/‑15%) 6 W
solenoid power consumption
AC
230 V (+10%/‑15%) 6 W
Duty cycle
100 %
Locking force F
max
STM.N
≥ 1000 N
STM.A
≥ 2000 N
With angled actuator
1500 N
F
Locking force F
max
Zh
(F
=
Zh
acc. to EN ISO 14119
1.3
STM.N
700 N
STM.A
1500 N
Reliability values acc. to EN ISO 13849-1
B
2 x 10
6
10d
Shown: safety guard closed, actuator locked.
NC contact opens before NO contact closes (break before make).
21
11
23
11
Figure 3: Switching elements and switching functions
)
Figure 4: Minimum door radii
Safety guard
Safety guard
closed
closed
and locked
and not locked
E1
E2
SK
ÜK
SK
ÜK
SK
ÜK
SK
11
12
21
22
22
11
12
12
23
24
24
11
12
11
12
12
Hinged actuator
S-OU-SN
20
35,5
Hinged actuator
S-LR-SN
Actuator
Actuator‑S‑G...
Actuator‑S‑W...
Hinged actuator‑S‑OU...
Hinged actuator‑S‑LR...
7
Safety guard
open
E1
E1
E2
E2
SK
ÜK
ÜK
SK
ÜK
11
12
21
22
11
12
11
12
24
11
12
23
11
12
12
11
Hinged actuator
S-OU-LN
for insertion funnel
20
35,5
Hinged actuator
S-LR-LN
for insertion funnel
Door radius min.
[mm]
300
300
200
200
Version
STM...222...
STM...242...