Ordering Code / Model Number
Air Cooled UT & SW Series
Position #1: MODEL
S = SW Series Air Cooled Rectifier
U = UT Series Air Cooled Rectifier
Position #2: TYPE
S = Standard Rectifier (Manual taps)
V = Variac Control
Position #3: COOLING
A = Air Cooled
Position #4: STACK TYPE
I = Silicon (recommended)
E = Selenium
Position #5: DC VOLTS
List Maximum DC Voltage Desired
Position #6: DC AMPS
List Maximum DC Amperage Desired
Position #7: AC INPUT
AA = 115/230, 1 phase set for 115 vac AB = 115/230, 1 phase set for 230 vac
BA = 230/460, 1 phase set for 230 vac BB = 230/460, 1 phase set for 460 vac
EA = 115/460, 1 phase set for 115 vac EB = 115/460, 1 phase set for 460 vac
G = 115, 1 phase only H = 230, 1 phase only
F = Specify  
Position #8: SPECIAL FEATURES
C = AC and DC arrestors M = DC breaker or fuse
D = DC arrestor R = 115 VAC convenience outlet
E = AC arrestor N = Powder coated cabinet (hot-dip galvanized standard on most models)
F = Filter choke P = Additional voltage control taps
G = Communications filter Q = Other, specify
H = Meter switches  
J = Power On indicator light  
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UT & SW Series
UT & SW Otpional Features
UT & SW Dimensions