Catalog LV1 T 2009 Chapter 3 EN

3
Controls — Contactors and Contactor Assemblies
Project planning aids
LZX plug-in relays – relay couplers
LZX:PT270 LZX:PT370 LZX:PT520, LZX:PT570, LZX:PT580
2-pole 3-pole 4-pole
5 * =
! )
'
LZX:RT3 LZX:RT4 LZX:MT32
1-pole 2-pole 3-pole
Values in brackets: socket designations.
Without brackets: contact/coil designations.
Position of the connection terminals
3/250
"
#
)
5 * " % =
"
) "
"
"
" "
&
) "
Standard plug-in bases for PT series
LZS:PT78720
for 2 CO contacts, with screw terminals
8
7 NO 6
5
44 34 24 14
4 3 NC 2 1
42 32 22 12
A2 COIL COIL A1
14 13
41 31 21 11
12 11 COM 10 9
NSB0_01755
Siemens LV 1 T · 2009
"
5 * " ' =
%
! )
"
"
)
)
5 * " & =
&
"
#
! '
!
!
! "
$
) "
LZS:PT78730
for 3 CO contacts, with screw terminals
6
NO 5
34 24
3 NC 2
32 22
4
14
1
12
A2 COIL COIL A1
14 13
31 21 11
9 COM 8 7
© Siemens AG 2009
NSB0_01756
"
"
5 * # =
'
"
#
! )
5 * # =
#
$
"
$
!
%
"
!
!
! "
%
" & !
"
) "
! " ' ! "
)
!
)
"
"
" "
&
LZS:PT78740
for 4 CO contacts, with screw terminals
8
7 NO 6
5
44 34 24 14
4 3 NC 2 1
42 32 22 12
A2 COIL COIL A1
14 13
41 31 21 11
12 11 COM 10 9
NSB0_01757