2:1
240 VAC
I amps
Primary Coil
1800 Turns
Secondary Coil
900 Turns
Vload
= 120 VAC
Iload
= amps
Load
Primary Turns
Secondary Turns
Primary Voltage
Secondary Voltage Primary Current
Secondary Current
=.The step-down transformer used step
down the primary voltage lower secondary voltage.
00 2
0 5
1 10
2 25
3 50
4 135 100
5 270 100 200
6 540 200 400
7 810 300 600
8 1215 450 900
9 2250 800 1600
NEMA
Size
Continuous
Amp Rating
HP
@ 230 VAC
HP
@ 460 VAC
Stator The stationary elements the magnetic circuit rotating
machine such motor. IEC-rated devices
are rated according maximum operational current.
Step-downTransformer transformer with more turns wire its primary coil than in
its secondary coil. NEMA
specifies sizes from size size 9.
NEMA and IEC rate motor starters differently.35
Starter Ratings Motor Starters are rated according size and type load
