Maintenance, Safety considerations – Rockwell Automation T7446L_H ICS Regent+Plus Relay Output Modules User Manual
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(T7446L, H) Relay Output Modules
 
P D - 7 0 1 7 M a r - 0 6  
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control logic by using a contact element (or similar element) 
with the output point name. 
Maintenance
No periodic maintenance or calibration is required for this 
module. If a module is to be replaced, verify the replacement 
module’s relay form configuration matches the original relay 
output module. 
Fuses for each output are located inside the module. These 
fuses are for protection of the I/O chassis connectors and 
module circuit board only, and are not field-replaceable. 
Should an internal fuse blow, it indicates that the module is 
being used for output loads in excess of the safe rating of the 
module and the I/O chassis. 
Modules with blown fuses should be returned to ICS for repair 
or replacement. 
Safety Considerations
The relay output modules are TÜV certified as non-
interfering, and can be used in a safety system for simplex 
non-safety critical outputs. For safety critical outputs, 
guarded output modules should be used (model T7481, T7484, 
T7485 or T7488 are recommended).