M3452

Heavy Duty Braking Transistor

M3452 Heavy Duty Braking Transistor
Ul Listed

For UL listing, see table below.

Bonitron remains a leader in the field of high horsepower braking and proudly maintains its reputation for durability and reliability, with models rated up to 1600A.

Bonitron Braking Transistors are used with AC drives to allow full power braking and eliminate overvoltage faults. This permits controlled braking and dramatically shortens motor stopping time. The M3452 works with Variable Speed Drives (VSDs) to monitor the DC bus. If overvoltage occurs, the M3452 shunts the excess energy through a braking resistor to prevent overvoltage faults. (Standard and custom braking resistors are also available from Bonitron. For more information see the M3775R series).

Optional advanced diagnostics allow for remote monitoring, while local indicators assist in pinpointing issues. Remote configuration and networking capabilities add to the flexibility and reliability of your overall system and reduce your installation wiring.

For lower duty cyle applications, or where advanced I/O isn't required, see our M3575T Standard Duty Braking Transistors.

RoHS Compliant

Product Highlights

  • Local and remote status monitoring
  • EtherNet/IP™ & PROFIBUS™ DP networking options
  • Systems can be reconfigured on-the-fly
  • Up to 1600A per unit (Parallel operation for higher ratings)
  • Proven record for quality and support
M3452 Control Board Options

Add -A, -R7, -R7E, -R7EIP, R7PDP to end of part number when selecting M3452 model on other tabs.
See availability below.

Control Board Connections for M3452

Control Option Availability on M3452 Series

  • 75 - 150A (B7)
    Options Available with "A" Only
  • 200 - 600A (K6) Options R7, R7E, R7EIP, R7PDP
  • 800A (K9), 1200A (K10) and 1600A (M14) Options R7, R7E, R7EIP, R7PDP
  • 1600A (T10) Options R7, R7E, R7EIP, R7PDP
  • All units above 200A have Master/Slave capability
Power
(Peak)		 Control
Voltage		 Base
Model Number		 Braking
Current
(Peak)		 Braking
Current
(RMS)		 Minimum
Resistance		 Dimensions
(H" x W" x D")		 Model
Weight		 UL and CUL Listing User Manual
(Control Options)
230 - 240VAC | 375VDC Setpoint
37.5 HP 115-120 VAC M3452-U75LB7 75 A 75 A 5.00 Ω 17.75" x 7.00" x 8.10" 22 lbs UL and CUL A
37.5 HP 230-240 VAC M3452-L75B7 75 A 75 A 5.00 Ω 17.75" x 7.00" x 8.10" 22 lbs UL and CUL A
75 HP 115-120 VAC M3452-U150LB7 150 A 150 A 2.50 Ω 17.75" x 7.00" x 8.10" - UL and CUL A
75 HP 230-240 VAC M3452-L150B7 150 A 150 A 2.50 Ω 17.75" x 7.00" x 8.10" - UL and CUL A
100 HP 115-120 VAC M3452-U200LK6 200 A 200 A 1.90 Ω 20.00" x 7.12" x 10.50" - UL and CUL R7, R7E, R7EIP, R7PNET
100 HP 230-240 VAC M3452-L200K6 200 A 200 A 1.90 Ω 20.00" x 7.12" x 10.50" 32 lbs UL and CUL R7, R7E, R7EIP, R7PNET
150 HP 115-120 VAC M3452-U300LK6 300 A 300 A 1.25 Ω 20.00" x 7.12" x 10.50" 38 lbs UL and CUL R7, R7E, R7EIP, R7PNET
150 HP 230-240 VAC M3452-L300K6 300 A 300 A 1.25 Ω 20.00" x 7.12" x 10.50" 38 lbs UL and CUL R7, R7E, R7EIP, R7PNET
300 HP 115-120 VAC M3452-U600LK6 600 A 300 A 0.63 Ω 20.00" x 7.12" x 10.50" - UL and CUL R7, R7E, R7EIP, R7PNET
300 HP 230-240 VAC M3452-L600K6 600 A 300 A 0.63 Ω 20.00" x 7.12" x 10.50" - UL and CUL R7, R7E, R7EIP, R7PNET
400 HP 115-120 VAC M3452-U800LK9 800 A 400 A 0.47 Ω 20.00" x 9.05" x 10.25" -   R7, R7E, R7EIP, R7PNET
400 HP 230-240 VAC M3452-L800K9 800 A 400 A 0.47 Ω 20.00" x 9.05" x 10.25" -   R7, R7E, R7EIP, R7PNET
600 HP 115-120 VAC M3452-U1200LK10 1200 A 600 A 0.32 Ω 20.00" x 10.00" x 10.50" -   R7, R7E, R7EIP, R7PNET
600 HP 230-240 VAC M3452-L1200K10 1200 A 600 A 0.32 Ω 20.00" x 10.00" x 10.50" -   R7, R7E, R7EIP, R7PNET
Power
(Peak)		 Control
Voltage		 Base
Model Number		 Braking
Current
(Peak)		 Braking
Current
(RMS)		 Minimum
Resistance		 Dimensions
(H" x W" x D")		 UL and CUL Listing User Manual
(Control Options)
380 - 415VAC | 620VDC Setpoint
62.5 HP 120 VAC M3452-U75EB7 75 A 75 A 8.27 Ω 17.75" x 7.00" x 8.10"   A
62.5 HP 380 VAC M3452-E75B7 75 A 75 A 8.27 Ω 17.75" x 7.00" x 8.10"   A
125 HP 120 VAC M3452-U150EB7 150 A 150 A 4.13 Ω 17.75" x 7.00" x 8.10"   A
125 HP 380 VAC M3452-E150B7 150 A 150 A 4.13 Ω 17.75" x 7.00" x 8.10"   A
160 HP 120 VAC M3452-U200EK6 200 A 200 A 3.10 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
160 HP 380 VAC M3452-E200K6 200 A 200 A 3.10 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
240 HP 120 VAC M3452-U300EK6 300 A 300 A 2.07 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
240 HP 380 VAC M3452-E300K6 300 A 300 A 2.07 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
490 HP 120 VAC M3452-U600EK6 600 A 300 A 1.03 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
490 HP 380 VAC M3452-E600K6 600 A 300 A 1.03 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
660 HP 120 VAC M3452-U800EK9 800 A 400 A 0.78 Ω 20.00" x 10.00" x 10.25"   R7, R7E, R7EIP, R7PNET
660 HP 380 VAC M3452-E800K9 800 A 400 A 0.78 Ω 20.00" x 10.00" x 10.25"   R7, R7E, R7EIP, R7PNET
1000 HP 120 VAC M3452-U1200EK10 1200 A 600 A 0.52 Ω 20.00" x 10.00" x 10.50"   R7, R7E, R7EIP, R7PNET
1000 HP 380 VAC M3452-E1200K10 1200 A 600 A 0.52 Ω 20.00" x 10.00" x 10.50"   R7, R7E, R7EIP, R7PNET
1330 HP 120 VAC M3452-U1600EM14 1600 A 1200 A 0.39 Ω 28.00" x 13.90" x 14.60"   R7, R7E, R7EIP, R7PNET
1330 HP 380 VAC M3452-E1600M14 1600 A 1200 A 0.39 Ω 28.00" x 13.90" x 14.60"   R7, R7E, R7EIP, R7PNET
1330 HP 120 VAC M3452-U1600ET10 1600 A 1200 A 0.39 Ω 30.59" x 10.12" x 19.18"   R7, R7E, R7EIP, R7PNET
1330 HP 380 VAC M3452-E1600T10 1600 A 1200 A 0.39 Ω 30.59" x 10.12" x 19.18"   R7, R7E, R7EIP, R7PNET
Power
(Peak)		 Control
Voltage		 Base
Model Number		 Braking
Current
(Peak)		 Braking
Current
(RMS)		 Minimum
Resistance		 Dimensions
(H" x W" x D")		 UL and CUL Listing User Manual
(Control Options)
460 - 480VAC | 750VDC Setpoint
75 HP 120 VAC M3452-U75HB7 75 A 75 A 10.00 Ω 17.75" x 7.00" x 8.10" UL and CUL A
75 HP 460 VAC M3452-H75B7 75 A 75 A 10.00 Ω 17.75" x 7.00" x 8.10" UL and CUL A
150 HP 120 VAC M3452-U150HB7 150 A 150 A 5.00 Ω 17.75" x 7.00" x 8.10" UL and CUL A
150 HP 460 VAC M3452-H150B7 150 A 150 A 5.00 Ω 17.75" x 7.00" x 8.10" UL and CUL A
200 HP 120 VAC M3452-U200HK6 200 A 200 A 3.80 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
200 HP 460 VAC M3452-H200K6 200 A 200 A 3.80 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
300 HP 120 VAC M3452-U300HK6 300 A 300 A 2.50 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
300 HP 460 VAC M3452-H300K6 300 A 300 A 2.5 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
600 HP 120 VAC M3452-U600HK6 600 A 300 A 1.25 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
600 HP 460 VAC M3452-H600K6 600 A 300 A 1.25 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
800 HP 120 VAC M3452-U800HK9 800 A 400 A 0.93 Ω 20.00" x 9.05" x 10.25"   R7, R7E, R7EIP, R7PNET
800 HP 460 VAC M3452-H800K9 800 A 400 A 0.93 Ω 20.00" x 9.05" x 10.25"   R7, R7E, R7EIP, R7PNET
1200 HP 120 VAC M3452-U1200HK10 1200 A 600 A 0.63 Ω 20.00" x 10.00" x 10.50"   R7, R7E, R7EIP, R7PNET
1200 HP 460 VAC M3452-H1200K10 1200 A 600 A 0.63 Ω 20.00" x 10.00" x 10.50"   R7, R7E, R7EIP, R7PNET
1600 HP 120 VAC M3452-U1600HM14 1600 A 1200 A 0.47 Ω 28.00" x 13.90" x 14.60" UL and CUL R7, R7E, R7EIP, R7PNET
1600 HP 460 VAC M3452-H1600M14 1600 A 1200 A 0.47 Ω 28.00" x 13.90" x 14.60" UL and CUL R7, R7E, R7EIP, R7PNET
1600 HP 120 VAC M3452-U1600HT10 1600 A 1200 A 0.47 Ω 30.59" x 10.12" x 19.18"   R7, R7E, R7EIP, R7PNET
1600 HP 460 VAC M3452-H1600T10 1600 A 1200 A 0.47 Ω 30.59" x 10.12" x 19.18"   R7, R7E, R7EIP, R7PNET
Power
(Peak)		 Control
Voltage		 Base
Model Number		 Braking
Current
(Peak)		 Braking
Current
(RMS)		 Minimum
Resistance		 Dimensions
(H" x W" x D")		 UL and CUL Listing User Manual
(Control Options)
575 - 600VAC | 940VDC Setpoint
95 HP 120 VAC M3452-U75CB7 75 A 75 A 12.50 Ω 17.75" x 7.00" x 8.10" UL and CUL A
95 HP 575 VAC M3452-C75B7 75 A 75 A 12.50 Ω 17.75" x 7.00" x 8.10" UL and CUL A
190 HP 120 VAC M3452-U150CB7 150 A 150 A 6.30 Ω 17.75" x 7.00" x 8.10" UL and CUL A
190 HP 575 VAC M3452-C150B7 150 A 150 A 6.30 Ω 17.75" x 7.00" x 8.10" UL and CUL A
250 HP 120 VAC M3452-U200CK6 200 A 200 A 4.70 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
250 HP 575 VAC M3452-C200K6 200 A 200 A 4.70 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
380 HP 120 VAC M3452-U300CK6 300 A 300 A 3.20 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
380 HP 575 VAC M3452-C300K6 300 A 300 A 3.20 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
760 HP 120 VAC M3452-U600CK6 600 A 300 A 1.60 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
760 HP 575 VAC M3452-C600K6 600 A 300 A 1.60 Ω 20.00" x 7.12" x 10.50" UL and CUL R7, R7E, R7EIP, R7PNET
1000 HP 120 VAC M3452-U800CK9 800 A 400 A 1.20 Ω 20.00" x 9.05" x 10.25"   R7, R7E, R7EIP, R7PNET
1000 HP 575 VAC M3452-C800K9 800 A 400 A 1.20 Ω 20.00" x 9.05" x 10.25"   R7, R7E, R7EIP, R7PNET
1500 HP 120 VAC M3452-U1200CK10 1200 A 600 A 0.78 Ω 20.00" x 10.00" x 10.50"   R7, R7E, R7EIP, R7PNET
1500 HP 575 VAC M3452-C1200K10 1200 A 600 A 0.78 Ω 20.00" x 10.00" x 10.50"   R7, R7E, R7EIP, R7PNET
2015 HP 120 VAC M3452-U1600CM14 1600 A 1200 A 0.58 Ω 28.00" x 13.90" x 14.60" UL and CUL R7, R7E, R7EIP, R7PNET
2015 HP 575 VAC M3452-C1600M14 1600 A 1200 A 0.58 Ω 28.00" x 13.90" x 14.60" UL and CUL R7, R7E, R7EIP, R7PNET
2015 HP 120 VAC M3452-U1600CT10 1600 A 1200 A 0.58 Ω 30.59" x 10.12" x 19.18"   R7, R7E, R7EIP, R7PNET
2015 HP 575 VAC M3452-C1600T10 1600 A 1200 A 0.58 Ω 30.59" x 10.12" x 19.18"   R7, R7E, R7EIP, R7PNET
Power
(Peak)		 Control
Voltage		 Base
Model Number		 Braking
Current
(Peak)		 Braking
Current
(RMS)		 Minimum
Resistance		 Dimensions
(H" x W" x D")		 UL and CUL Listing User Manual
(Control Options)
690VAC | 1090VDC Setpoint
110 HP 120 VAC M3452-U75YB7 75 A 75 A 14.50 Ω 17.75" x 7.00" x 8.10"   A
220 HP 120 VAC M3452-U150YB7 150 A 150 A 7.30 Ω 17.75" x 7.00" x 8.10"   A
300 HP 120 VAC M3452-U200YK6 200 A 200 A 5.50 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
440 HP 120 VAC M3452-U300YK6 300 A 300 A 3.60 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
875 HP 120 VAC M3452-U600YK6 600 A 300 A 1.95 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
1170 HP 120 VAC M3452-U800YK9 800 A 400 A 1.40 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R7EIP, R7PNET
1750 HP 120 VAC M3452-U1200YK10 1200 A 600 A 0.91 Ω 20.00" x 10.00" x 10.50"   R7, R7E, R8EIP, R8PDP
2300 HP 120 VAC M3452-U1600YM14 1600 A 1200 A 0.91 Ω 20.00" x 7.12" x 10.50"   R7, R7E, R8EIP, R8PDP
M3452B7 Braking Transistor
B7
17.75"H x 7.00"W x 8.10"D
M3452K6 Braking Transistor
K6
20.00"H x 7.12"W x 10.50"D
M3452K9 Braking Transistor
K9
20.00"H x 9.05"W x 10.25"D
M3452K10 Braking Transistor
K10
20.00"H x 10.00"W x 10.50"D
M3452M14 Braking Transistor
M14
28.00"H x 13.90"W x 14.60"D
M3452T10 Braking Transistor
T10
30.59"H x 10.12"W x 19.18"D
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