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Saia-Burgess Controls AG
Manual
Manual PCD 1 / PCD 2 Series
│ Document 26
/
737 E
N22 │ 2013-11-26
Appendix
A-6
Installation direction and relays contact protection
A
A.4
Installation direction and relays contact protection
A.4.1 Installation direction for switching low voltages
For reasons of safety it is not allowed that low voltages (up to 50 V) and higher volt-
ages (50
…
250 V) are connected to the same module.
If a Saia PCD
®
system module is connected to a higher voltage (50
…
250 V) ap-
proved components for this voltage have to be used for all elements which are gal-
vanically connected to the system.
Using higher voltage (50
…
250 V), all connections to the relay contacts are to be con-
nected on the same circuit. That means at one point in such a way that they are all
protected against one AC-phase by only one fuse. Each load circuit may be protected
individually by a fuse of max. 2 A.
A.4.2 Installation direction for switching higher voltages
For reasons of safety it is not allowed that low voltages (up to 50 V) and higher volt-
ages (50
…
250 V) are connected to the same module.
If a Saia PCD
®
system module is connected to a higher voltage (50
…
250 V) ap-
proved components for this voltage have to be used for all elements which are gal-
vanically connected to the system.
Using higher voltage (50
…
250 V), all connections to the relay contacts are to be con-
nected on the same circuit. That means at one point in such a way that they are all
protected against one AC-phase by only one fuse. Each load circuit may be protected
individually by a fuse of max. 2A.
PCD2.A200
L
N
Burden
max. 10 A
max. 2 A