8.6 Series 3 Rack Optional Relay Specifications
8.6.1 Relay Output Contacts
Relay output contacts: Via PLC, normally open (form A). Available in 88 and 176 contacts, both
are user configurable. Factory default setting include A1 and A2 alarms per point as well as 9
general analyzer A1, 9 general analyzer A2, 9 analyzer fault/maintenance and 5 open.
8.6.2 Relay Contact Ratings
l
0.1 to 2.0 Amps
l
5-24 VDC or
l
5-120 VAC
The alarm relay has a minimum load requirement of greater than 5 volts and 10 mA. For
reliable relay operation, ensure the alarm circuit meets these requirements.
Maximum Volts
Amperes
1
Amperes
Continuous
Volt-Amperes
Make Break Make Break
AC
240VAC 7.5A 0.75A 2.0A
1800VA 180VA
120VAC 15A 1.5A
DC
125VDC 0.22A
2
0.27A 28VA
24VDC 1.16A
2
2.0A
(1) Calculated based on the Rockwell Automation component derating guideline: 90% of
rated contact current, that is, 0.3 A at 125V DC. Connecting surge suppressors across your
external load will extend the life of CompactLogix 5380 relay contacts. For recommended
surge suppressor when switching AC inductive loads, consult the CompactLogix 5380
Controllers Installation Instructions (5069-IN013H-EN- P).
(2) For DC voltage applications, the make/break ampere rating for relay contacts is
determined by dividing 28VA by the applied DC voltage. For example, 28VA/48V DC = 0.58
A
Table 8-4: Relay Contact Ratings for 5069-OW16 and OW4I
For more information see Allen-Bradley publication 5069-IN018G-EN-P. This can be found at:
https://literature.rockwellautomation.com/idc/groups/literature
Vertex M 185 User Manual
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