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Catalog Number Identification
A typical Catalog Number is shown below with i ts elements explained. The example is for a Series 300 ATS with
switched neutral, 3 pole, 230 amp, 480 V, in a Type 1 enclosure:
D 300 B 3 230 N 1 C
Phase Poles
Neutral
C – overlapping
Amperes Voltage Controller Enclosure
B –switched
1 –standard
G –type4
C –type1
F –type3R
L –type12
3 –threeØ
2 –singleØ
D 220
C 208
E 230
K 415
M 460
J 400
L 440
N 480
F 240
H 380
230 **
blank – solid
blank – open type
1X –if
accessories
ordered
** 230 amp. limited
to 480 volts
A 115
B 120
terminals for
engine start contacts
Transfer Switch
Controller
normal power
connections
emergency power
connections
membrane
controls
230 amp. size in typical enclosure with location of customer connections
terminals for switch
position contacts
load power
connections
cable spacers
(see INST ALLATION)
maintenance handle
(see WARNING under
Manual Operation)