SBC PCD2.M5 Series - Installation Instructions and Relay Contacts; Installation Instructions for Carrying Extra-Low Voltage; Installation Instructions for Carrying Low Voltage

Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG
Installation instructions and relay contacts
Annex
A-5
A
A.3 Installation instructions and relay contacts
A.3.1 Installationinstructionsforcarryingextra-lowvoltage
Onmodulesdesignedforlowvoltage(e.g.PCD3.A251),onlyvoltagesuptomax.
50 V may be connected for safety reasons.
The safety standard covering the air and leakage current distances between neigh-
bouringchannelsisnotsatisedbythismoduleforhighervoltages(50 … 250V).
Note that all connections to the relay contacts on a module must be connected to
the same circuit, i.e. only one phase per module is permitted. Each load circuit may
however be fused individually.
A.3.2 Installationinstructionsforcarryinglowvoltage
Forreasonsofsafetyitisnotpermissibletoconnectextra-lowvoltages(upto50V)
andlowvoltages(50 … 250 V)tothesamemodule.
IfaPCDmoduleisconnectedtoahighervoltage(50 … 250V),approved
components for this voltage must be used for all elements that are electrically
connected to the system.
Usinghighervoltage(50...250V),allconnectionstotherelaycontactsmustbe
connected on the same circuit, i.e. in such a way that they are all protected against
one AC phase by one common fuse. Each load circuit may however be fused
individually.
Examples:
PCD2.A200
L N
Last
max. 10 A
max. 2 A