SIEMENS
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Siemens IC 10 · 2017
Coupling Relays
LZS coupling relays with plug-in relays
5
1)
Capacitive loads can result in micro-welding on the contacts.
Relay type
LZX:RT print relay, 8-pole,
(12.7 mm) 1 CO / 2 CO
LZX:PT industrial relay, 8-, 11- and 14-pole,
(22.5 mm) 2 CO / 3 CO / 4 CO
Control side
Operating range
at 20 °C
V
16.8 ... 52
18 ... 52
86.3 ... 127
172 ... 264
18 ... 40.8
19.2 ... 39.6
92 ... 190
184 ... 380
Power consumption at
U
s
• AC
VA
--
0.75
--
1
• DC
W
0.4
--
0.75
--
Release voltage
V
2.4
7.2
34.5
69
3.6
7.2
34.5
69
Protection circuit
Freewheel
diode for
complete
unit
--
Freewheel
diode in
LED
module
--
Load side
Switching voltage
AC/DC
V
24 ... 250
Rated currents
1)
• Conventional thermal current
I
th
A
-
1 CO contact
A
16
--
-
2 CO contacts
A
6
12
-
3 CO contacts
A
--
10
-
4 CO contacts
A
--
6
• Rated operational current
I
e
/AC-15 acc. to
utilization categories (IEC 60947-5-1)
A
RT3 (1 changeover contact): 6
RT4 (2 changeover contacts): 2.5
PT2 (2 changeover contacts): 5
PT3 (3 changeover contacts): 5
PT5 (4 changeover contacts): 4 (DC coils),
2 (AC coils)
• Rated operational current
I
e
DC-13 with
suppressor diode acc. to utilization
categories (IEC 60947-5-1)
A
2 at 24 V,
0.27 at 230 V
PT2, PT3: 5 at 24 V
PT5: 4 at 24 V
0.5 at 230 V
Short-circuit protection
Short-circuit test with fuse links of operational
class gG
With short-circuit current
I
k
= 1 kA
acc. to IEC 60947-5-1
• DIAZED, type 5SB
A
10
6
Min. contact load
(Reliability: 1 ppm)
Normal 17 V, 10 mA;
hard gold-plated 17 V/0.1 mA
Normal 17 V, 10 mA;
hard gold-plated 20 mV/1 mA
Mechanical endurance
Operating cycles
30 x 10
6
10 x 10
6
Electrical endurance
(Resistive load at 250 V AC)
Operating cycles
1 x 10
5
© Siemens AG 2016