Resistive
Load Banks
M3775R
Overvoltage
Solutions
While Bonitron has been the industry leader for Braking Transistors for years,
what better way to compliment that than by offering quality resistors too!
Bonitron has a vast standard offering of Braking Resistors and welcomes
custom requests as well.
Vertical Forced Air
(VFA)
Convection Cooled
AC Line
Horizontal Forced Air (HFA)
(Optional)
Transistor Resistor
DRIVE
M3775R Braking Resistors are used with Bonitron Braking Transistors to allow
full power braking and eliminate overvoltage faults. This permits controlled
braking and dramatically shortens motor stopping, time. If overvoltage
occurs, Bonitron Transistors or the drive’s internal brake, shunts excess energy
through a Bonitron M3775R Braking Resistor to prevent overvoltage faults.
T
M
Industry Applications
R
Product Highlights
• Standard Mill Galvanized Steel Enclosure
• 306, 316, etc. Stainless Steel Options
• NEMA-3R Options
• Thermal switch comes standard
Voltages..............230 - 690VAC
Current Rating.....Up to 1600Amps
Duty Cycle............10 % Overhauling/ 20% Braking
50% Overhauling
100% Overhauling
Centrifuges | Conveyors | Cranes | Draw Works | Elevators | Hoists | Pick and Place | Pump Jacks | & More!
www.bonitron.com
615-244-2825
info@bonitron.com
Model Number
Breakdown
Listed are common
Bonitron resistors.
Contact Bonitron
for custom sizes
and ratings.
M3775R
K
H
600
A
VFA
3R
Internal Note
VFA - Vertical Fan Exhaust
HFA - Horizontal Fan Exhaust
A - 10% Duty
B - 50% Duty
C - 100% Duty
System AC Voltage
Peak Horsepower
Duty Cycle
Enclosure Type (Omit if not 3R)
Forced Air (Omit if convecon)
Model Number Selection
230-240VAC
Peak
HP
Peak
kW
10% Overhauling (20% Braking)
Peak
Ohms Cont.
Dimensions
Amps
Resistor Model Number
(H x W x D)
kW
0.5
0.75
1
1.5
2
3
5
7.5
10
15
20
25
30
40
50
60
75
100
125
150
200
250
300
400
600
0.37
0.55
0.74
1.11
1.5
2.2
3.7
5.5
7.5
11
15
18
22
30
37
44
55
75
93
111
150
186
223
298
447
1
2
2
3
4
6
10
14
20
30
39
50
60
77
96
114
139
197
234
288
375
469
600
800
1200
50% Overhauling Duty
Cont.
Resistor Model Number
kW
Continuous Duty
Dimensions
(H x W x D)
Cont.
kW
Resistor Model Number
5.0" x 14.0" x 4.0"
0.37
0.55
0.74
1.11
1.5
2.2
3.7
5.5
7.5
11
15
18
22
30
37
44
55
75
93
111
150
186
223
298
447
M3775RK-L0.50C
M3775RK-L0.75C
M3775RK-L1.00C
M3775RK-L1.50C
M3775RK-L2.00C
M3775RK-L3.00C
M3775RK-L5.00C
M3775RK-L7.50C
M3775RK-L010C
M3775RK-L015C
M3775RK-L020C
M3775RK-L025C
M3775RK-L030C
M3775RK-L040C
M3775RK-L050C
M3775RK-L060C
M3775RF-L075C-3R-VFA
M3775RF-L100C-3R-VFA
M3775RF-L125C-3R-VFA
M3775RF-L150C-3R-VFA
M3775RF-L200C-3R-VFA
M3775RF-L250C-3R-VFA
M3775RF-L300C-3R-VFA
M3775RF-L400C-3R-VFA
M3775RF-L600C-3R-VFA
Dimensions
(H x W x D)
230 - 240 VAC | 375VDC
375
250
190
125
95
63
38
26
19
12.6
9.6
7.5
6.3
4.9
3.9
3.3
2.7
1.9
1.6
1.3
1
0.8
0.6
0.5
0.32
0.04
0.06
0.07
0.11
0.15
0.22
0.37
0.55
0.75
1.1
1.5
1.8
2.2
3.0
3.7
4.4
5.5
7.5
9
11
15
19
22
30
45
M3775RK-L0.50A
M3775RK-L0.75A
M3775RK-L1.00A
M3775RK-L1.50A
M3775RK-L2.00A
M3775RK-L3.00A
M3775RK-L5.00A
M3775RK-L7.50A
M3775RK-L010A
M3775RK-L015A
M3775RK-L020A
M3775RK-L025A
M3775RK-L030A
M3775RK-L040A
M3775RK-L050A
M3775RK-L060A
M3775RK-L075A
M3775RK-L100A
M3775RK-L125A
M3775RK-L150A
M3775RK-L200A
M3775RK-L250A
M3775RK-L300A
M3775RK-L400A
M3775RK-L600A
5.0" x 14.0" x 4.0"
5.0" x 14.0" x 7.0"
5.0" x 14.0" x 10.0"
5.0" x 14.0" x 13.0"
5.0" x 21.0" x 10.0"
5.0" x 28.0" x 13.0"
11.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
0.19
0.28
0.37
0.56
0.75
1.10
1.85
2.75
3.75
5.5
7.5
9
11
15
19
22
28
38
47
M3775RK-L0.50B
M3775RK-L0.75B
M3775RK-L1.00B
M3775RK-L1.50B
M3775RK-L2.00B
M3775RK-L3.00B
M3775RK-L5.00B
M3775RK-L7.50B
M3775RK-L010B
M3775RK-L015B
M3775RK-L020B
M3775RK-L025B
M3775RK-L030B
M3775RK-L040B
M3775RK-L050B
M3775RK-L060B
M3775RK-L075B
M3775RK-L100B
M3775RK-L125B
5.0" x 14.0" x 7.0"
5.0" x 14.0" x 10.0"
5.0" x 21.0" x 10.0"
5.0" x 28.0" x 13.0"
18.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
39.5" x 29.0" x 18.0"
53.5" x 29.0" x 18.0"
See
M3775RF-L150C-3R-VFA
to
M3775RF-L600C-3R-VFA
--->
25.5" x 29.0" x 18.0"
32.5" x 29.0" x 18.0"
Contact Bonitron
5.0" x 14.0" x 4.0"
5.0" x 14.0" x 7.0"
5.0" x 14.0" x 10.0"
5.0" x 28.0" x 13.0"
11.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
32.5" x 29.0" x 18.0"
46.5" x 29.0" x 18.0"
Contact Bonitron
380-415VAC
Peak
HP
Peak
kW
10% Overhauling (20% Braking)
Peak
Ohms Cont.
Dimensions
Amps
Resistor Model Number
(H x W x D)
kW
62.5
125
165
250
500
665
1000
1330
47
93
123
186
373
496
746
992
75
150
200
300
600
800
1200
1600
50% Overhauling Duty
Cont.
Resistor Model Number
kW
Dimensions
(H x W x D)
Continuous Duty
Cont.
kW
Resistor Model Number
Dimensions
(H x W x D)
47
93
123
186
373
496
746
992
M3775RK-E063C
M3775RF-E125C-3R-VFA
M3775RF-E165C-3R-VFA
M3775RF-E250C-3R-VFA
M3775RF-E500C-3R-VFA
M3775RF-E665C-3R-VFA
M3775RF-E1000C-3R-VFA
M3775RF-E1330C-3R-VFA
Contact Bonitron
380 - 415 VAC | 620 VDC
8.27
4.13
3.1
2.07
1.03
0.78
0.52
0.39
5
9
12
19
37
50
75
99
M3775RK-E063A
M3775RK-E125A
M3775RK-E165A
M3775RK-E250A
M3775RK-E500A
M3775RF-E665A-3R
M3775RF-E1000A-3R
M3775RF-E1330A-3R
www.bonitron.com
Contact Bonitron
36 x 62 x 36
Contact Bonitron
32.5" x 29 x 18
Contact Bonitron
23
47
M3775RK-E063B
M3775RK-E125B
Contact Bonitron
See
M3775RF-E165C-3R-VFA
to
M3775RF-E1330C-3R-VFA
---->
615-244-2825
info@bonitron.com
460-480VAC
Peak
HP
Peak
kW
10% Overhauling (20% Braking)
Peak
Ohms Cont.
Dimensions
Amps
Resistor Model Number
(H x W x D)
kW
0.5
0.75
1
1.5
2
3
5
7.5
10
15
20
25
30
40
50
60
75
100
125
150
200
250
300
350
400
500
600
800
1200
1600
0.4
0.6
0.7
1.1
1.5
2.2
3.7
5.6
7.5
11
15
19
22
30
37
45
56
75
93
112
149
186
224
261
298
373
447
597
895
1193
0.5
0.75
1
1.5
2
3
5
7.5
10
15
20
25
30
40
50
60
75
99
124
149
199
249
298
348
398
497
597
796
1194
1591
50% Overhauling Duty
Dimensions
(H x W x D)
Cont.
Resistor Model Number
kW
Continuous Duty
Cont.
kW
Resistor Model Number
0.4
0.6
0.7
1.1
1.5
2.2
3.7
5.6
7.5
11
15
19
22
30
37
45
56
75
93
112
149
186
224
261
298
373
447
597
895
1193
M3775RK-H0.50C
M3775RK-H0.75C
M3775RK-H1.00C
M3775RK-H1.50C
M3775RK-H2.00C
M3775RK-H3.00C
M3775RK-H5.00C
M3775RK-H7.50C
M3775RK-H010C
M3775RK-H015C
M3775RK-H020C
M3775RK-H025C
M3775RK-H030C
M3775RK-H040C
M3775RK-H050C
M3775RK-H060C
M3775RF-H075C-3R-VFA
M3775RF-H100C-3R-VFA
M3775RF-H125C-3R-VFA
M3775RF-H150C-3R-VFA
M3775RF-H200C-3R-VFA
M3775RF-H250C-3R-VFA
M3775RF-H300C-3R-VFA
M3775RF-H350C-3R-VFA
M3775RF-H400C-3R-VFA
M3775RF-H500C-3R-VFA
M3775RF-H600C-3R-VFA
M3775RF-H800C-3R-VFA
M3775RF-H1200C-3R-VFA
M3775RF-H1600C-3R-VFA
Dimensions
(H x W x D)
460 - 480 VAC | 750VDC
1500
1000
750
500
375
250
150
100
75
50
38
30
25
19
15
12.6
10
7.5
6
5
3.8
3
2.5
2.2
1.9
1.5
1.25
0.94
0.63
0.47
0.04
0.06
0.07
0.11
0.15
0.22
0.37
0.56
0.75
1.1
1.5
1.9
2.2
3.0
3.7
4.5
5.6
7.5
9
11
15
19
22
26
30
37
45
60
89
119
M3775RK-H0.50A
M3775RK-H0.75A
M3775RK-H1.00A
M3775RK-H1.50A
M3775RK-H2.00A
M3775RK-H3.00A
M3775RK-H5.00A
M3775RK-H7.50A
M3775RK-H010A
M3775RK-H015A
M3775RK-H020A
M3775RK-H025A
M3775RK-H030A
M3775RK-H040A
M3775RK-H050A
M3775RK-H060A
M3775RK-H075A
M3775RK-H100A
M3775RK-H125A
M3775RK-H150A
M3775RK-H200A
M3775RK-H250A
M3775RK-H300A
M3775RK-H350A
M3775RK-H400A
M3775RK-H500A
M3775RK-H600A
M3775RF-H800A-3R
M3775RF-H1200A-3R
M3775RF-H1600A-3R
5.0" x 14.0" x 4.0"
5.0" x 14.0" x 7.0"
5.0" x 14.0" x 4.0"
5.0" x 14.0" x 7.0"
5.0" x 14.0" x 10.0"
5.0" x 14.0" x 10.0"
5.0" x 14.0" x 13.0"
5.0" x 21.0" x 10.0"
5.0" x 21.0" x 10.0"
5.0" x 21.0" x 13.0"
5.0" x 28.0" x 13.0"
5.0" x 28.0" x 13.0"
11.5" x 29.0" x 18.0"
11.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
35.0" x 29.0" x 18.0"
35.0" x 29.0" x 18.0"
39.5" x 29.0" x 18.0"
39.5" x 29.0" x 18.0"
49.5" x 29.0" x 18.0"
49.5" x 29.0" x 18.0"
0.2
0.3
0.4
0.6
0.7
1.1
1.9
2.8
3.7
5.6
7.5
9.3
11.2
14.9
19
22
28
37
47
M3775RK-H0.50B
M3775RK-H0.75B
M3775RK-H1.00B
M3775RK-H1.50B
M3775RK-H2.00B
M3775RK-H3.00B
M3775RK-H5.00B
M3775RK-H7.50B
M3775RK-H010B
M3775RK-H015B
M3775RK-H020B
M3775RK-H025B
M3775RK-H030B
M3775RK-H040B
M3775RK-H050B
M3775RK-H060B
M3775RK-H075B
M3775RK-H100B
M3775RK-H125B
5.0" x 14.0" x 7.0"
5.0" x 14.0" x 10.0"
5.0" x 14.0" x 10.0"
5.0" x 14.0" x 13.0"
5.0" x 14.0" x 10.0"
5.0" x 14.0" x 13.0"
5.0" x 21.0" x 13.0"
5.0" x 28.0" x 13.0"
11.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
32.5" x 29.0" x 18.0"
39.5" x 29.0" x 18.0"
39.5" x 29.0" x 18.0"
53.5" x 29.0" x 18.0"
60.5" x 29.0" x 18.0"
See
M3775RF-H200C-3R-VFA
to
M3775RF-H1600C-3R-VFA
---->
Contact Bonitron
5.0" x 21.0" x 10.0"
5.0" x 14.0" x 10.0"
5.0" x 14.0" x 10.0"
5.0" x 21.0" x 10.0"
5.0" x 21.0" x 10.0"
5.0" x 21.0" x 10.0"
5.0" x 28.0" x 13.0"
18.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
53.5" x 29.0" x 18.0"
39.5" x 29.0" x 18.0"
Contact Bonitron
575-600VAC
Peak
HP
Peak
kW
10% Overhauling (20% Braking)
Peak
Ohms Cont.
Dimensions
Amps
Resistor Model Number
(H x W x D)
kW
0.5
0.75
1
1.5
2
3
5
7.5
10
15
20
25
30
40
50
60
75
100
125
150
200
250
375
760
1000
1500
2015
0.37
0.56
0.75
1.1
1.5
2.2
3.7
5.6
7.5
11
15
19
22
30
37
45
56
75
93
112
149
186
280
567
746
1119
1503
0.4
0.6
1
1
2
2
4
6
8
12
16
20
24
32
41
47
60
80
101
121
159
200
300
600
800
1200
1600
50% Overhauling Duty
Continuous Duty
Dimensions
(H x W x D)
Cont.
kW
Resistor Model Number
5.0" x 14.0" x 7.0"
5.0" x 14.0" x 4.0"
5.0" x 14.0" x 13.0"
5.0" x 14.0" x 10.0"
5.0" x 14.0" x 13.0"
5.0" x 14.0" x 10.0"
5.0" x 21.0" x 13.0"
5.0" x 28.0" x 13.0"
11.5" x 29.0" x 18.0"
0.37
0.56
0.75
1.1
1.5
2.2
3.7
5.6
7.5
11
15
19
22
30
37
45
56
75
93
112
149
186
280
567
746
1119
1503
M3775RK-C0.50C
M3775RK-C0.75C
M3775RK-C1.00C
M3775RK-C1.50C
M3775RK-C2.00C
M3775RK-C3.00C
M3775RK-C5.00C
M3775RK-C7.50C
M3775RK-C010C
M3775RK-C015C
M3775RK-C020C
M3775RK-C025C
M3775RK-C030C
M3775RK-C040C
M3775RK-C050C
M3775RK-C060C
M3775RF-C075C-3R-VFA
M3775RF-C100C-3R-VFA
M3775RF-C125C-3R-VFA
M3775RF-C150C-3R-VFA
M3775RF-C200C-3R-VFA
M3775RF-C250C-3R-VFA
M3775RF-C375C-3R-VFA
M3775RF-C760C-3R-VFA
M3775RF-C1000C-3R-VFA
M3775RF-C1500C-3R-VFA
M3775RF-C2015C-3R-VFA
Cont.
Resistor Model Number
kW
Dimensions
(H x W x D)
575 - 600 VAC | 940VDC
2000
1500
1200
800
575
400
235
150
120
78
59
47
39
29
23
20
15.6
11.7
9.3
7.8
5.9
4.7
3.2
1.6
1.2
0.78
0.58
0.04
0.06
0.07
0.11
0.15
0.2
0.4
0.6
0.7
1
1
2
2
3
4
4
6
7
9
11
15
19
28
57
75
112
150
M3775RK-C0.50A
M3775RK-C0.75A
M3775RK-C1.00A
M3775RK-C1.50A
M3775RK-C2.00A
M3775RK-C3.00A
M3775RK-C5.00A
M3775RK-C7.50A
M3775RK-C010A
M3775RK-C015A
M3775RK-C020A
M3775RK-C025A
M3775RK-C030A
M3775RK-C040A
M3775RK-C050A
M3775RK-C060A
M3775RK-C075A
M3775RK-C100A
M3775RK-C125A
M3775RK-C150A
M3775RK-C200A
M3775RK-C250A
M3775RK-C375A
M3775RF-C760A-3R
M3775RF-C1000A-3R
M3775RF-C1500A-3R
M3775RF-C2015A-3R
www.bonitron.com
5.0" x 14.0" x 4.0"
5.0" x 14.0" x 7.0"
5.0" x 14.0" x 10.0"
5.0" x 14.0" x 13.0"
5.0" x 21.0" x 10.0"
5.0" x 28.0" x 13.0"
5.0" x 21.0" x 13.0"
5.0" x 28.0" x 13.0"
11.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
39.5" x 29.0" x 18.0"
Contact Bonitron
0.19
0.28
0.37
0.56
0.75
1.1
1.9
2.8
3.7
6
7
9
11
15
19
22
28
37
47
M3775RK-C0.50B
M3775RK-C0.75B
M3775RK-C1.00B
M3775RK-C1.50B
M3775RK-C2.00B
M3775RK-C3.00B
M3775RK-C5.00B
M3775RK-C7.50B
M3775RK-C010B
M3775RK-C015B
M3775RK-C020B
M3775RK-C025B
M3775RK-C030B
M3775RK-C040B
M3775RK-C050B
M3775RK-C060B
M3775RK-C075B
M3775RK-C100B
M3775RK-C125B
18.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
32.5" x 29.0" x 18.0"
46.5" x 29.0" x 18.0"
60.5" x 29.0" x 18.0"
See
M3775RF-C150C-3R-VFA
to
M3775RF-C2015C-3R-VFA
---->
615-244-2825
5.0" x 14.0" x 7.0"
5.0" x 14.0" x 13.0"
5.0" x 14.0" x 10.0"
5.0" x 21.0" x 13.0"
5.0" x 21.0" x 10.0"
5.0" x 28.0" x 13.0"
11.5" x 29.0" x 18.0"
18.5" x 29.0" x 18.0"
25.5" x 29.0" x 18.0"
32.5" x 29.0" x 18.0"
39.5" x 29.0" x 18.0"
53.5" x 29.0" x 18.0"
Contact Bonitron
info@bonitron.com
690VAC
Peak
HP
Peak
kW
10% Overhauling (20% Braking)
Peak
Ohms Cont.
Dimensions
Amps
Resistor Model Number
(H x W x D)
kW
110
220
300
440
875
1170
1750
2300
82
164
224
328
652
872
1305
1715
75
150
200
300
600
800
1200
1600
50% Overhauling Duty
Cont.
Resistor Model Number
kW
Continuous Duty
Dimensions
(H x W x D)
Cont.
kW
Resistor Model Number
Dimensions
(H x W x D)
82
164
224
328
652
872
1305
1715
M3775RF-Y110C-3R-VFA
M3775RF-Y220C-3R-VFA
M3775RF-Y300C-3R-VFA
M3775RF-Y440C-3R-VFA
M3775RF-Y875C-3R-VFA
M3775RF-Y1170C-3R-VFA
M3775RF-Y1750C-3R-VFA
M3775RF-Y2300C-3R-VFA
Contact Bonitron
690 VAC | 1090VDC
15
7.5
5.5
3.6
1.95
1.4
0.91
0.68
8
16
22
33
65
87
130
172
M3775RK-Y110A
M3775RK-Y220A
M3775RK-Y300A
M3775RK-Y440A
M3775RF-Y875A-3R
M3775RF-Y1170A-3R
M3775RF-Y1750A-3R
M3775RF-Y2300A-3R
Contact Bonitron
See
M3775RF-Y110C-3R-VFA
to
M3775RF-Y2300C-3R-VFA
---->
Looking for a more efficient solution?
Line Regens
Single or 3-Phase
Bonitron Line Regens replace traditional braking
transistor and resistor options that waste
energy as heat during drive braking. Instead of
dissipating braking energy as heat in a resistor,
Line Regen solutions return this energy to the
power grid. This reduces demand from the
utility, which equates to ample energy savings.
Bonitron Line Regen units return regenerative energy
back to the AC line where it can used by equipment
within the facility. This reduces the amount of power
required from the utility; reducing utility costs.
For applications greater than 20% duty and 450A and
below, consider a Bonitron Line Regen. The link below
will help you calculate the utility savings for your
application.
Bonitron.com/RegenCalculator
Standard Duty Braking Resistor
Cranes & Hoists
Construction
Barges / Ships
Manufacturing
Mining
Pick and Place
Port / Shipyard
Railroad
+ More!
M3575R
Oil & Gas
Beam Pumps
Drawworks
Electrical Submersible Pumps
Progressive Cavity Pumps
Pumpjacks
Rotary Tables
Top Drives
+ More!
• UL & CUL Listed
• Wall or cabinet mountable
• Installable with new application or
as retrofit
• Rapid installation increases up time
• Terminal access covers are standard
Why Bonitron?
• Maximizedrivesystem
efficiencyandreliability
• Decadesofproven
successintheoil
industry
• Quickdeliveryandsupport
• Maximizeuptimeto
increaseROI
• Strongreputationfor
quality
• Safelylowerloads
withouttrippingdrives
• Utilizebrakingcurrent
topowerotherdrives
• Backuppowertoprotect
fromsagsandoutages
Products
Braking Resistors
Braking Transistors
Line Regeneration
Common Bus Power Supplies
Common Bus Diodes
Uninterruptible Power for Drives
Products
Braking Resistors
Braking Transistors
Common Bus Power Supplies
Single Phase Line Regeneration
3-Phase Line Regeneration
Uninterruptible Power for Drives
Both the Crane & Hoists and Oil & Gas
brochures feature the M3775R Braking
Resistor. Learn more at Bonitron.com/
industries.html
Case Resistors
Need a Braking Transistor?
•
•
•
•
UL & CUL Listed
Aluminum housing
Two-screw mounting
Installable with new application
or as retrofit
• Rapid installation increases up
time
Bonitron Braking Transistors are the perfect
solutions for drives with no internal brake,
or for applications with harsher duty cycles
than most internal brakes can handle.
• 230 - 690VAC
• Up to 2300HP each
• Ethernet IP and Profibus DP networking
options available
EtherNet/IP is registered trademark of ODVA. PROFIBUS is a registered trademark of PROFIBUS Trade Organization.
521 Fairground Court | Nashville, TN 37211 | U.S.A.
Monday - Friday 8:00am - 5:00pm CT | Tel: 615-244-2825
Email: info@bonitron.com | Fax: 615-244-2833 | www.bonitron.com
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Information
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