Use surge suppressors, Din rail mounting – Rockwell Automation 2085-OW8_OW16 Micro800 8-Point and 16-Point AC/DC Relay Output Modules User Manual
Page 7
Micro800 8-Point and 16-Point AC/DC Relay Output Modules 7
Publication 2085-IN004A-EN-P - September 2012
Mounting Dimensions and DIN Rail Mounting
Use Surge Suppressors
Because of the potentially high current surges that occur when switching inductive load devices,
such as motor starters and solenoids, we recommend the use of some type of surge suppression to
protect and extend the operating life of the controllers output contacts.
Switching inductive loads without surge suppression can significantly reduce the life expectancy
of relay contacts. By adding a suppression device directly across the coil of an inductive device,
you prolong the life of the output or relay contacts. You also reduce the effects of voltage
transients and electrical noise from radiating into adjacent systems.
Refer to the Micro830 and Micro850 Programmable Controllers User Manual, publication
, for suitable surge suppression methods and recommended surge suppressors.
DIN Rail Mounting
The module can be mounted using the following DIN rails: 35 x 7.5 mm x 1 mm
(EN 50 022 - 35 x 7.5).
Before mounting the module on a DIN rail, use a flat-blade screwdriver in the DIN rail latch and
pry it downwards until it is in the unlatched position.
TIP
For environments with greater vibration and shock concerns, use the panel
mounting method, instead of DIN rail mounting.
ATTENTION: This product is grounded through the DIN rail to chassis ground. Use zinc plated
yellow-chromate steel DIN rail to assure proper grounding. The use of other DIN rail materials
(for example, aluminum or plastic) that can corrode, oxidize, or are poor conductors, can result
in improper or intermittent grounding. Secure DIN rail to mounting surface approximately every
200 mm (7.8 in.) and use end-anchors appropriately.
45309
Mounting dimensions do not include mounting feet or DIN rail latches.
87 mm (3.42 in.)
90 mm
(3.54 in.)
150 mm (5.91 in.)
44.5 mm (1.75 in.)
2085-OW8
2085-OW16
Micro850 Controller
Bus terminator
28 mm (1.10 in.)