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Operating Instructions
Safety Switch STM Pro
Exclusion of liability and warranty
In case of failure to comply with the conditions for
correct use stated above, or if the safety regula-
tions are not followed, or if any servicing is not
performed as required, liability will be excluded and
the warranty void.
Notes about
This device is intended to be used with a Class 2
power source in accordance with UL1310.
As an alternative an LV/C (Limited Voltage/Current)
power source with the following properties can be
used:
This device shall be used with a suitable isolating
source in conjunction with a fuse in accordance
with UL248. The fuse shall be rated max. 3.3 A
and be installed in the max. 30 V DC power supply
to the device in order to limit the available current
to comply with the UL requirements
possibly lower connection ratings for your device
(refer to the technical data). A maximum power
value of 100 VA according to Tab. 32.1 (UL508)
must not be exceeded.
1) Note on the scope of the UL approval: the devices have been
tested as per the requirements of UL508 and CSA/C22.2 no. 14
(protection against electric shock and fire).
Declaration of conformity
The product complies with the requirements accord-
ing to Machinery Directive 2006/42/EC.
The EU declaration of conformity can be found at
www.euchner.com. Enter the order number of your
device in the search box. The document is available
under Downloads.
Service
If servicing is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Germany
Service telephone:
+49 711 7597-500
E-mail:
support@euchner.de
Internet:
www.euchner.com
Technical data
Parameter
Housing material
Degree of protection
Mechanical life
Ambient temperature
Degree of contamination
(external, acc. to
EN IEC 60947-1)
Installation position
Approach speed, max.
Extraction force (not locked)
Actuating force, max., at
20 °C
Actuation frequency
Switching principle
Contact material
Connection
Conductor cross-section
. Please note
1)
(flexible/rigid)
Rated insulation voltage
Rated impulse withstand
voltage
Conditional short-circuit
current
Switching voltage, min.,
at 10 mA
Utilization category acc. to
EN IEC 60947-5-1
Switching current, min., at
24 V
Short circuit protection
(control circuit fuse) acc. to
EN IEC 60269-1
Convent. thermal current I
Solenoid operating voltage/
solenoid power consumption
Duty cycle
Locking force
STM.N
- ACTUATOR S-...,
HINGED ACTUATOR S-...
Characteristics acc. to EN ISO 13849-1
Monitoring of guard locking and the guard position
B
10D
at DC-13 100 mA/24 V
Version
STM...2222...
STM...2422...
Fig. 4: Switching elements and switching functions
Value
Reinforced thermoplastic
IP67
2 x 10
operating cycles
6
-20 ... +55 °C
3 (industrial)
Any
20 m/min
30 N
35 N
1,200/h
Slow-action switching contact
Silver alloy, gold flashed
Cable entry M20 x 1.5
0.34 ... 1.5 mm²
U
= 250 V
i
U
= 2.5 kV
imp
100 A
12 V
AC-15 4 A 24 V /
DC-13 4 A 24 V
1 mA
4 A gG
4 A
th
AC/DC 24 V (+10%/-15%) 6 W
100%
F
F
max
Zh
1,000 N
700 N
2 x 10
6
Guard closed
and
locked
E1
E2
SK
ÜK
SK
ÜK
22
21
22
21
21
11
11
12
11
12
23
24
21
22
23
11
12
11
12
11
7
Guard closed
Guard
and
open
not locked
E1
E2
SK
ÜK
SK
ÜK
SK
SK
22
21
22
21
22
12
11
12
11
12
24
21
22
23
24
12
11
12
11
12
E1
E2
ÜK
ÜK
21
22
11
12
21
22
12
11
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