5
Operating Instructions
Safety Switch SGA...
Info
: The year of manufacture can be seen in the
bottom, right corner of the type label.
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
The following information applies to devices
with cable entry:
For use and application as per the requirements
of
a copper wire for the temperature range
60/75 °C must be used.
The following information applies to devices
with plug connector:
This device is intended to be used and applied with
a Class 2 power source in accordance with UL1310.
Connecting cables for safety switches installed at
the place of use must be separated from all moving
and permanently installed cables and un-insulated
active elements of other parts of the system that
operate at a voltage of over 150 V. A constant
clearance of 50.8 mm must be maintained. This
does not apply if the moving cables are equipped
with suitable insulation materials that possess an
identical or higher dielectric strength compared to
the other relevant parts of the system.
EU declaration of conformity
The declaration of conformity is part of the operating
instructions, and it is included as a separate sheet
with the device.
The original EU declaration of conformity can also
be found at: www.euchner.com
Service
If servicing is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Germany
Service telephone
:
+49 711 7597-500
:
Internet
:
www.euchner.com
Technical data
Parameter
Value
Housing material
Die-cast alloy
Degree of protection
SGA1… (cable entry)
SGA2… (plug connector)/
SGA…L024…
IP67
IP65
Mechanical life
2 x 10
6
operating cycles
Ambient temperature
-20 … +80 °C
Degree of contamination
(external, acc. to EN 60947-1) 3 (industrial)
Installation orientation
Any
Approach speed, max.
20 m/min
Extraction force
25 N
Retention force
10 N
Actuating force, max.
25 N
Actuation frequency
6,700/h
Switching principle
Slow-action switching contact
Contact material
Silver alloy, gold flashed
Connection
SGA1…
SGA2…SR11
Cable entry M20 x 1.5
Plug connector SR11, 11-pin+PE
Conductor cross-section
(flexible/rigid)
SGA1…
0.34 … 1.5 mm²
Operating voltage for optional
LED indicator
L024 24 V
Conditional short-circuit
current
100 A
Switching voltage, min.,
at 10 mA
12 V
Switching current, min., at 24 V 1 mA
Short circuit protection
(control circuit fuse) acc. to
IEC 60269-1
4 A gG
Convent. thermal current I
th
4 A
Utilization category acc. to EN 60947-5-1
SGA1…
AC-15 4 A 230 V /
DC-13 4 A 24 V
SGA2…SR11
AC-15 4 A 50 V /
DC-13 4 A 24 V
Rated insulation voltage
SGA1…
U
i
= 250 V
SGA2…SR11
U
i
= 50 V
Rated impulse withstand voltage
SGA1…
U
imp
= 2.5 kV
SGA2…SR11
U
imp
= 1.5 kV
Reliability values acc. to EN ISO 13849-1
B
10D
at DC-13 100 mA/24 V
3 x 10
6
Fig. 2: Switching elements and switching functions
Version
Switching contacts
SGA.-528H…
1 NC + 1 NO contacts
SGA.-2121H…
4 NC contacts
SGA.-2131H…
3 NC + 1 NO contacts
SGA.-3131H…
2 NC + 2 NO contacts
22
14
21
13
22
14
21
13
21
11
22
12
21
11
22
12
42
32
22
12
41
31
21
11
42
32
22
12
41
31
21
11
41
33
21
11
42
34
22
12
41
33
21
11
42
34
22
12
41
33
21
13
42
34
22
14
42
34
22
14
41
33
21
13
Door closed
Door open
2.
1.
1.
2.
3.
3.
4.
4.
6
8
5
7
4
3
2
1
4
5
6
7
8
11
9
3
2
1
10
PE
Ordinal numbers of switching elements
Terminal assignment with plug
connector SR11
Illustration of plug connector
SR11
View of safety switch connection side
SGA.-538H…
2 NC contacts