Installation
All regulators generate considerable heat and depend on the
natural draft air circulation for adequate cooling.
It is important that ventilation openings not be obstructed.
Mounting in a confined or poorly ventilated space should be
avoided unless special provisions have been made
for ventilation.
Hard-Wired Voltage Regulators
Hard-wired voltage regulators vary in size according to the
output power and may be mounted in either a horizontal or
vertical position. If mounted in a vertical position (on a wall,
for example), steel mounting hardware must be selected in
accordance with Table 1 for a secure installation. The wiring
compartment should be at the top. Regardless of position,
the regulator should be located where contact with the hot
surface of the transformer is unlikely.
For proper ventilation, allow a minimum of 12 inches of
clearance above the unit and a minimum of 6 inches of
clearance on each side. Dimensions of the regulators and
the morning brackets are presented in Figures 1, 2, 3, and 4.
The specifications for the figures are listed in Table 3.
Hard-wired regulators must be connected to a branch
circuit in accordance with local and national electrical
codes. Electrical connections are diagrammed in Figure 5.
Proper wiring is determined by the Figure indicated from the
regulator specifications in Table 3.
If operation from a 3-phase source is required, three
hard-wired regulators may be wired in delta as shown in
Figure 10.
Table 2 gives the proper jumper configurations for needed
input and output voltages. Table 2 also defines the regulator
connections in relation to the points diagrammed in Figure 6.
Fusing and wire gauge size are detailed in Table 3.
Note:
Branch circuit protection must be located in the
primary of each transformer!
Not
in the three-phase
operation, fuses must be connected in the primary of each
unit, not in the three-phase lines.
On 7.5 and 10 kVA models, the terminal block is located in
the right unit. Use only the front or right side knockouts of
the right unit for conduit connections. On 15 kVA models,
the terminal block is located in the middle unit. Use only the
front knockouts of the middle unit for conduit connections.
Two or more models of the same rating may be connected
with their input and output in parallel. However, on models
smaller than 5 kVA, do not parallel both 208 V (X4-X5) and
240 VCT (X1-X2-X3). This may damage the
output windings.
Table 3
VA
Voltage Input
Voltage Output
Catalog
Number
OD
Dimensions
Approx.
Shipping
Weight
(kg)
Input Voltage
Output Voltage
Required Circuit Protection / Minimum Gauge 90
o
C WIRE
Minimum Gauge 90
o
C WIRE
Dim.
A
(cm)
Dim.
B
(cm)
Dim.
C
(cm)
Dim.
D
(cm)
Dim.
E
(cm)
Dim.
F
(cm)
Dim.
G
(cm)
Dim. H
(cm)
110-120
220-240
380-415
110-120
220-240
380-415
110-120
220-240
120
110, 120, 220, 240, 380, 415
110, 120, 220, 240
63-23-612-8
A
23,11
18,90
11,43
13,67
12,07
10,48
5,53
0,79 X 1,75
8,08
3
1.5
0.8
1, 0
1, 0
1, 0
1,0
1,0
250
110, 120, 220, 240, 380, 415
110, 120, 220, 240
63-23-625-8
A
26,92
18,90
11,43
13,67
12,07
10,48
5,53
0,79 X 1,75
12,24
6
3
1
1, 0
1, 0
1, 0
1,0
1,0
500
110, 120, 220, 240, 380, 415
110, 120, 220, 240
63-23-650-8
A
33,66
16,21
19,69
22.86
20,64
14,30
9,12
0,79 X 2,06
18,14
10
6
1
1, 5
1, 0
1, 0
1,0
1,0
1000
110, 120, 220, 240, 380, 415
110, 120, 220, 240
63-23-710-8
A
45,57
16,21
19,69
22,86
20,64
14,30
14,83
0,79 X 2,06
28,12
15
10
3
2, 5
1, 5
1, 0
1,5
1,0
2000
110, 120, 220, 240, 380, 415
110, 120, 220, 240
63-23-720-8
B
44,65
23,72
26,82
32,38
29,84
10,69
12,70
1,12 X 1,75
50,81
30
15
10
6, 0
2, 5
1, 5
4,0
1,5
3000
110, 120, 220, 240, 380, 415
110, 120, 220, 240
63-23-730-8
B
67,72
23,81
26,90
32,38
29,84
15,39
9,29
1,12 X 1,75
72,59
45
25
15
16,0
4,0
2,5
6,0
2,5
5000
110, 120, 220, 240, 380, 415
110, 120, 220, 240
63-23-750-8
B
76,20
23,81
26,90
32,38
29,84
23,79
9,37
1,12 X 1,75
109,79
80
40
20
25,0
10,0
4,0
16,0
4,0
7500
220, 240, 380, 415
110, 120, 220, 240
63-23-775-8
C
71,12
23,81
62,23
65,55
63,02
18,71
9,37
1,12 X 1,75
176,94
-
60
30
16,0
6,0
-
25,0
10,0
10000
220, 240, 380, 415
110, 120, 220, 240
63-23-810-8
C
76,20
23,81
62,23
65,55
63,02
23,80
9,37
1,12 X 1,75
220,50
-
80
40
25,0
10,0
-
35,0
16,0
15000
220, 240, 380, 415
110, 120, 220, 240
63-28-815-8
D
76,20
23,81
91,44
97,15
76,20
23,81
91,44
97,15
349,35
-
110
60
50,0
16,0
-
45,0
25,0
50 Hz Mini/Micro Computer Regulator (MCR)
Installation and Operation Manual
Figure 5:
7500 VA and 10000–15000 VA
Electrical Connections
Table 1:
Bolt Sizes
Rated VA of Regulator
Minimum Recommended Size
of Steel Mounting Hardware
125/250
M6
500/1000
M7
1500 to 10000
M8
150000
M12
Operating & Service Instructions
Sola Minicomputer Regulators
UL White Card Listed – Power Supply Classification
CSA Certified – Transformer Classification
General Description and Specifications
The Sola Micro/Minicomputer Regulator (MCR) provide
virtually instantaneous voltage regulation, and isolation from
both transverse and common mode noises for any type
of load. It also suppresses transients with ferroresonant,
protects overloads, and serves as a dedicated line. It is the
ultimate in AC power conditioning equipment.
Operating Temperature Range:
-20° to +50°C.
Phase:
Single
Input Voltage and Frequency:
See Table 3
Output Voltage and Frequency:
110/120/220/240 VAC
Output Voltage Regulation:
+3% for an input line variation of
+15%
Output Harmonic Distortion:
Less than 3% total RMS content at
full load.
Efficiency:
85% or 90% at full load typical. No loss of output for
line loss of 3 msec.
Noise Reduction:
Common mode noise rejection exceeds 120dB.
Transverse noise rejection exceeds 60dB.
Voltage Surge Suppression:
Meets
ANSI/IEEE C62.41
Category A and B waveforms
(formerly IEEE 587-1980).
Figure 1:
Outline
Drawing 1
Figure 2:
Outline
Drawing 2
Primary Voltage
Interconnect Connect Lines To
220-240
H1 to H3
H2 to H5
H1 & H5
380-415
H2 to H3
H1 & H4
Secondary Voltage Interconnect Connect Lines To
110
X1 & X2 or X2 & X3
120
X4 & X2 or X5 & X2
220
X1 & X3
240
X4 & X5
MCR 50 Hz 7500 VA
Primary Voltage
Interconnect Connect Lines To
220-240
H2 to H3
H1 & H4
380-415
H2 to H3
H1 & H5
Secondary Voltage Interconnect Connect Lines To
110
X1 & X2 or X3 & X2
120
X4 & X2 or X5 & X2
220
X1 & X3
240
X4 & X5
MCR 50 Hz 10000 - 15000 VA
Figure 3:
Outline
Drawing 3
Figure 4:
Outline
Drawing 4
Figure 6.
3-Phase Connections
* Connect Per Table 2
Table 2:
Wire and Jumper Configurations
Unit (VA)
Input Volts
Input
Terminals
Jumper
Connection
Output
Connection
250 to 5000
90-130
H1-H4
(H1-H3)
(H2-H4)
(All Models)
110-X1-X2 or
X2-X3
120 X4-X2 or
X2-X5
220-X1-X3
240 X4-X5
180-260
H1-H4
(H2-H3)
310-450
H1-H5
(H2-H3)
7500
180-260
H1-H5
(H1-H3)
(H2-H5)
310-450
H1-H4
(H2-H3)
10000 to 15000
180-260
H1-H4
(H2-H3)
H1-H5
(H2-H3)
3
2
1
6
5
4
7
9
8
