4
2.3. STANDARD MODEL NUMBER SYSTEM
The model number for each CRA Series conditioning voltage regulator identifies the various characteristics of that
specific unit. The following table explains the meaning of each character in a standard model number.
Typical Model Number
→
CRA
1
2
W
2
H
S
017
-
CB
D
M
T
3
6
7
CRA
Conditioning Regulator, Analog
1
Single Phase
2
Two Phase
3
Three Phase
1
Nominal Voltage 120-127 (100)
2
Nominal Voltage 208 X 220-230-240 (277)
4
Nominal Voltage 380-400-415 X 480
6
Nominal Voltage 480 X 600
blank
Standard Range (-20 to + 10% typical)
W
Wide Range (-30 to +15% typical)
1
Nominal Voltage 120-127 (100)
2
Nominal Voltage 208 X 220-230-240 (277)
4
Nominal Voltage 380-400-415 X 480
6
Nominal Voltage 480 X 600
Blank
KVA Rated for Non & Boost
H
KVA Rated for Boost mode
S
Single Control
D
Double Control
T
Triple Control
NNN
Load KVA Rating
CB
Input Circuit Breaker (with no trip coil)
CS
Input Circuit Breaker with 120vac Shunt Trip
CR
Input Circuit Breaker with 120vac Under voltage Trip Release
D
Delayed Output
M
Manual Bypass Switch
T
Tropicalization Treatment
0
No Meter Options
(3)
1
Ammeter(s)
2
Frequency Meter w/ Alarm Contacts
3
Both 1 & 2 above
0
No Alarm Circuit Options
(3)
4
Input Voltage Range Alarm(s)
5
Phase loss/Phase reversal Alarm
6
Both 4 & 5 above
0
No Miscellaneous Options
(3)
7
Manual Raise / Lower Switch(s)
8
Soft Start
9
Both 7 & 8 above
(1) Base model numbers (no options) as shown in catalog include the characters up to the hyphen (-).
(2) For lettered options not selected the letters and spaces are omitted from the model number.
(3) The last three numbers in the model number are all used unless all three are zero then they are omitted.
