Electrical connections, Grounding – Rockwell Automation 1405-M620 Operating Instructions User Manual
Page 3
 
Publication 1405-IN002C-EN-P - November 2004
Bulletin 1405 (M620) Operating Instructions 3
1. Install your module within a suitable enclosure. Make sure the
enclosure provides adequate clearance for ventilation and wiring 
of the module. 
Refer to Dimensions on page 20 for dimensions and spacing 
guidelines for the MiniPowermonitor.
2. Determine your wiring mode and install wiring between the
MiniPowermonitor and your power system.
Refer to Electrical Connections on page 3 for more information.
3. Configure the instrument settings to match those used in your
power system connections.
Refer to Instrument Set-Up on page 14 for more information.
Grounding
MiniPowermonitors do not need to be grounded because of the 
isolated enclosures. Follow all local requirements for grounding of PT 
and CT secondaries.
Electrical Connections
Electrical connections are terminated on two plug-in connector blocks 
with spring-clamp wire terminals, at the rear of the instrument. These 
connector blocks, 7- and 12-pin respectively, can accept wire sizes 
from 28 to 14 AWG (0.08 to 2.5 sq.mm).