Lumin Smart Panel - Outdoor
DOCUMENTATION AND INSTALLATION MANUAL
25
STEP 18. Testing for Crossover before Current Transformer Placement
To determine A and B feeders when a
main circuit breaker is present, test for
AC voltage between the left lug and the
left bus bar*. If the bus bar is not
accessible, test between the left lug and
the terminal on the top left circuit
breaker. See Figure C.
If V
between these points ≈
240, the
main breaker is a crossover type. Place
CT - A on the right and CT - B on the left.
If V
between these points ≈ 0, the
main
breaker is a standard type. Place CT - A
on the left and CT - B on the right.
WARNING: HIGH VOLTAGE.
AVERTISSEMENT: HAUTE TENSION.
Tools
: Multimeter
*
All descriptions assume a top-fed electrical panel.
Figure C
–
Typical Main Breaker Electrical Panel
Left Lug
Left Bus
