4
S&C Instruction Sheet 659-520
A
B
C
Safety Information
Reorder Information for Safety Labels
Location Safety Alert Message
Description
Part Number
A
DANGER
KEEP OUT . RISK OF ELECTRICAL SHOCK …
PE-70479-1
B
★
NOTICE
REAR CLEARANCE …
PE-70482-1
C
DANGER
ARC FLASH AND SHOCK …
PE-70483-1
★
Label is on the left and right sides of the PCS enclosure .
Location of Safety Labels
A
C
C
C
B
B
Symbols and Terminal Markings
The “ ” symbol represents the power on button . When the “ ” button with the symbol is pressed, the breaker
places the equipment into a fully-powered state
Equipment grounding conductor .
The “ ” symbol represents the power off button . When the button with the “ ” symbol is pressed, the breaker
disconnects the load side from the power source . The dc breaker disconnects the SMS-250 from the battery .
The ac breaker disconnects the ac output to the load .
Direct current, also indicated as dc .
Alternating current, also indicated as ac .