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Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 07/18
CERTUS Installation Manual
Characteristics of the Output Circuit
The C 2R / C 4R units use guided contact safety relays, each of which provides
two NO
contacts and one NC contact in addition to the NC feedback contact
.
The C 2R unit uses two safety relays and the C 4R uses four.
Excitation voltage
17...31 VDC
Minimum switchable voltage
10 VDC
Minimum switchable current
20 mA
Maximum switchable voltage (DC)
250VDC
Maximum switchable voltage (AC)
400VAC
Maximum switchable current
6A
Response time
12ms
Mechanical life of contacts
> 20 x 106
⇒
To guarantee correct isolation and avoid the risk of premature ageing of or damage to
the relays, each output line must be protected using a delay 3.5A fuse and the load
characteristics must be consistent with those specified in Table 12.
⇒
See the “C 2R - C 4R” section (for further details on these relays).
C 2R / C 4R Internal Contacts Diagram
