Installation
S811+ Soft Starter MN03900001E—November 2012 13
S811+V10… Installation Requirements
1. Install the device in a minimum enclosure size 30 ft
3
. 
2. Two (2) forced air ventilation fans with a minimum 
500 ft
3
/min, at a location for “air in”—bottom right or left 
corner and “air out”—opposite upper right or left corner. 
3. RD circuit breaker. 
4. For power wiring: Use four (4) 500 kcmil cables for each 
phase between RD circuit breaker and soft starter. 
OPTIONAL: Two (2) 3 in x 1/4 in bus with a 1/4 in spacer 
per terminal. 
Note: See the figure below for alternative layouts. 
5. Line and load service entrance wiring must not cross in 
the enclosure. 
Power Wiring Alternatives