BGMJ gas-filled dry capacitors use metallized polypropylene film in aluminium cans for low-voltage power factor correction. The three-phase model schedules cover 230V, 280V, 400V, 450V, 525V and 690V ratings. Match the complete model to the electrical duty, terminal configuration, case diameter, height and base stud.
230V and 280V group technical data
Parameter
Specification
Reference standards
GB12747-2004; IEC60831-1996; UL810-1995
Ambient temperature
-25°C to +50°C
Relative humidity
≤90%
Altitude
≤2000m
Permissible voltage
Rated voltage continuously; 1.1 times rated voltage for 8 hours per day; 1.3 times rated voltage for 1 minute
Permissible current
1.3 times rated current
Surge current
≤300 times rated current
Reactive output tolerance
-5% to +10%
Loss-angle tangent
≤0.0015 at rated power-frequency voltage
Dielectric loss
≤0.25W/kvar
Terminal-to-terminal withstand
2.15 times rated voltage for 10s
Terminals-to-case withstand
3000VAC for 60s
230V models
All model suffixes below belong to the BGMJ family. The listed -3 models use the three-phase Y1 outline. The drawing also identifies the YD1 single-phase alternative. ØD×H denotes case diameter and height; the stud column gives thread and projection.
BGMJ model suffix
Voltage (kV)
Output (kvar)
Total capacitance (µF)
Current (A)
ØD×H (mm)
Stud (mm)
0.23-3-3
0.23
3
181
7.5
76×180
M12×16
0.23-4-3
4
241
10
0.23-5-3
5
301
12.6
0.23-6-3
6
361
15.1
76×210
0.23-7.5-3
7.5
451
18.8
76×240
0.23-10-3
10
602
25.1
86×280
0.23-12-3
12
722
30.1
0.23-14-3
14
842
35.1
96×280
M16×25
0.23-15-3
15
903
37.7
0.23-16-3
16
963
40.2
280V models
BGMJ model suffix
Voltage (kV)
Output (kvar)
Total capacitance (µF)
Current (A)
ØD×H (mm)
Stud (mm)
0.28-3-3
0.28
3
122
6.2
76×180
M12×16
0.28-4-3
4
162
8.2
0.28-5-3
5
203
10.3
0.28-6-3
6
244
12.4
76×210
0.28-7.5-3
7.5
305
15.5
76×240
0.28-10-3
10
406
20.6
86×280
0.28-12-3
12
487
24.7
0.28-14-3
14
568
28.9
96×280
M16×25
0.28-15-3
15
609
30.9
0.28-16-3
16
650
33
400V models
BGMJ model suffix
Voltage (kV)
Output (kvar)
Total capacitance (µF)
Current (A)
ØD×H (mm)
Stud (mm)
0.4-3-3
0.4
3
60
4.3
76×135
M12×16
0.4-4-3
4
80
5.8
76×180
0.4-5-3
5
99
7.2
0.4-6-3
6
119
8.7
0.4-7.5-3
7.5
149
10.8
0.4-10-3
10
199
14.4
76×240
0.4-12-3
12
239
17.3
0.4-14-3
14
279
20.2
76×280
0.4-15-3
15
298
21.7
0.4-16-3
16
318
23.1
86×280
0.4-18-3
18
358
26.0
0.4-20-3
20
398
28.9
0.4-25-3
25
497
36.1
106×280
M16×25
0.4-30-3
30
597
43.3
116×280
450V models
BGMJ model suffix
Voltage (kV)
Output (kvar)
Total capacitance (µF)
Current (A)
ØD×H (mm)
Stud (mm)
0.45-3-3
0.45
3
47.2
3.8
76×135
M12×16
0.45-4-3
4
62.9
5.1
76×180
0.45-5-3
5
78.6
6.4
0.45-6-3
6
94.4
7.7
0.45-7.5-3
7.5
118
9.6
0.45-10-3
10
157
12.8
76×240
0.45-12-3
12
189
15.4
0.45-14-3
14
220
18.0
76×280
0.45-15-3
15
236
19.2
0.45-16-3
16
252
20.5
86×280
0.45-18-3
18
283
23.1
0.45-20-3
20
314
25.7
0.45-25-3
25
393
32.1
106×280
M16×25
0.45-30-3
30
472
38.5
116×280
525V models
BGMJ model suffix
Voltage (kV)
Output (kvar)
Total capacitance (µF)
Current (A)
ØD×H (mm)
Stud (mm)
0.525-3-3
0.525
3
34.7
3.3
76×135
M12×16
0.525-4-3
4
46.2
4.4
76×180
0.525-5-3
5
57.8
5.5
0.525-6-3
6
69.3
6.6
0.525-7.5-3
7.5
86.7
8.2
0.525-10-3
10
116
11.0
76×240
0.525-12-3
12
139
13.2
0.525-14-3
14
162
15.4
76×280
0.525-15-3
15
173
16.5
0.525-16-3
16
185
17.6
86×280
0.525-18-3
18
208
19.8
0.525-20-3
20
231
22.0
0.525-25-3
25
289
27.5
106×280
M16×25
0.525-30-3
30
347
33.0
116×280
690V models
BGMJ model suffix
Voltage (kV)
Output (kvar)
Total capacitance (µF)
Current (A)
ØD×H (mm)
Stud (mm)
0.69-3-3
0.69
3
20.1
2.5
76×135
M12×16
0.69-4-3
4
26.8
3.3
76×180
0.69-5-3
5
33.4
4.2
0.69-6-3
6
40.1
5.0
0.69-7.5-3
7.5
50.2
6.3
0.69-10-3
10
66.9
8.4
76×240
0.69-12-3
12
80.3
10.0
0.69-14-3
14
93.6
11.7
76×280
0.69-15-3
15
100
12.6
0.69-16-3
16
107
13.4
0.69-18-3
18
120
15.1
86×280
0.69-20-3
20
134
16.7
0.69-25-3
25
167
20.9
106×280
M16×25
0.69-30-3
30
201
25.1
116×280
Terminal arrangements, Y1 three-phase and YD1 single-phase outlines, and flange or stud fixing references.
Connections and ventilation
Use flexible cable with a temperature rating of at least 90°C. Connect each parallel capacitor through its own cable from the contactor side; do not use a capacitor terminal as the junction for feeding another capacitor.
Separate capacitor feeds from the contactor, compared with an unsuitable looped terminal connection.
Provide bottom-to-top cabinet airflow. The ventilation guide uses approximately 2.5W/kvar for the combined capacitors, contactors, fuses and connections, or 8W/kvar when series reactors are included. These are cabinet heat-planning figures, not capacitor dielectric-loss ratings. The class-D ventilation example limits the air surrounding the capacitors to +55°C; use the selected unit's marked temperature category and service limits.
Cable selection guide
Values are conductor cross sections in mm². Al denotes aluminium and Cu copper. A dash means no value is listed. Check the final conductor choice against installation conditions and the selected terminal arrangement.
Output (kvar)
Cable cross section (mm²)
230-240V
400-480V
Above 600V
Al
Cu
Al
Cu
Al
Cu
5
6
6
6
6
6
6
7.5
10
10
16
10
12.5
—
—
15
20
16
10
10
25
25
16
15
10
30
—
25
40
35
25
16
50
35
25
Before access, isolate both main and control power, allow the initial 1-minute discharge delay, and verify that the capacitor is fully discharged before touching the terminals.
