Switchboard / MCC
IEC 60617 (single-line diagram symbols)
Drawn as
A dashed frame around a busbar with an incoming breaker and outgoing feeders (breakers or contactors), labelled with the board tag and voltage.
Meaning
HV/LV switchboard or motor control centre. Becomes switchgear (set the kind: MV, LV or MCC), usually inside an E-house (e-house).
Variants
- MCC buckets are drawn as contactor + overload + motor
- Overview SLDs show each board as a single bar
Tags
SWB · SWG · MCC