Overvoltage Solutions TRANSISTOR SELECTION Bonitron > Products > Overvoltage > Transistor

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. Bonitron transistors monitor the DC bus, and if overvoltage occurs, the Bonitron Transistor shunts the excess energy through a resistor to prevent overvoltage faults.

Various sizes of Braking Transistors are available to fit your process. Select your voltage below to discover Bonitron's Braking Transistor offering.

 

M3452 Heavy Duty Braking Transistor
  • 208 - 690VAC
  • Up to 1600A per unit
  • 50 - 100% duty
  • EtherNet/IP, Profibus DP and Extended I/O options
M3575T Standard Duty Braking Transistor
  • 208 - 480VAC
  • Up to 600A / 600HP
  • 20% duty
M3675T Low HP Braking Transistor
  • 115 - 480VAC
  • Up to 10A / 10HP
  • 20% duty
  Peak Power  Control Voltage Braking Current (Peak) Braking Current (RMS) Base Model Number Minimum Resistance Options Available Dimensions
(H" x W" x D")
Model
Weight
 
115 - 120 VAC Drives   |   190 VDC Setpoint
  2.5 HP DC Bus 10 A 2 A M3675T-U10 19 Ω  N/A 7.00" x 2.06" x 6.75" 2 lbs  
 
  Peak Power  Control Voltage Braking Current (Peak) Braking Current (RMS) Base Model Number Minimum Resistance Options Available Dimensions
(H" x W" x D")
Model
Weight
 
230-240 VAC Drives   |   375 VDC Setpoint
  5 HP DC Bus 10 A 2 A M3675T-L10 38 Ω  N/A 7.00" x 2.06" x 6.75" 2 lbs  
  8 HP DC Bus 15 A 3.8 A M3575T-L15 25 Ω  N/A 12.75" x 3.00" x 8.70" 6 lbs  
  15 HP DC Bus 30 A 7.75 A M3575T-L30 12.5 Ω  N/A 12.75" x 3.00" x 8.70" 6 lbs  
  30 HP DC Bus 60 A 15 A M3575T-L60 6.25 Ω  N/A 12.75" x 4.00" x 8.70" 8 lbs  
  37.5 HP 115-120 VAC 75 A 75 A M3452-U75LB7 5.00 Ω  A 17.75" x 7.00" x 8.10" -  
230-240 VAC M3452-L75B7  A 22 lbs
  63 HP DC Bus 125 A 32 A M3575T-L125 3 Ω  N/A 17.75" x 6.50" x 8.00" 16 lbs  
  75 HP DC Bus 150 A 38 A M3575T-L150 2.5 Ω  N/A 17.75" x 6.50" x 8.00" -  
115-120 VAC 150 A 150 A M3452-U150LB7 2.50 Ω  A 17.75" x 7.00" x 8.10" -
230-240 VAC M3452-L150B7  A
  100 HP DC Bus 200 A 51 A M3575T-L200 1.9 Ω  N/A 17.75" x 7.00" x 8.00" -  
115-120 VAC 200 A 200 A M3452-U200LK6 1.90 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 32 lbs
230-240 VAC M3452-L200K6 A, R5, R7, R7E, R8EIP, R8PDP -
  150 HP DC Bus 300 A 77 A M3575T-L300 1.3 Ω  N/A 17.75" x 7.00" x 8.00" -  
115-120 VAC 300 A 300 A M3452-U300LK6 1.25 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 38 lbs
230-240 VAC M3452-L300K6 A, R5, R7, R7E, R8EIP, R8PDP -
  300 HP DC Bus 600 A 155 A M3575T-L600 0.7 Ω  N/A 17.75" x 7.00" x 8.00" -  
115-120 VAC 600 A 300 A M3452-U600LK6 0.63 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 38 lbs
230-240 VAC M3452-L600K6 A, R5, R7, R7E, R8EIP, R8PDP -
  400 HP 115-120 VAC 800 A 400 A M3452-U800LK9 0.47 Ω R7, R7E, R8EIP, R8PDP 20.00" x 9.05" x 10.25" 45 lbs  
230-240 VAC M3452-L800K9 R7, R7E, R8EIP, R8PDP -
  600 HP 115-120 VAC 1200 A 600 A M3452-U1200LK10 0.32 Ω R7, R7E, R8EIP, R8PDP 20.00" x 10.00" x 10.50" -  
230-240 VAC M3452-L1200K10 R7, R7E, R8EIP, R8PDP
 
  Peak Power  Control Voltage Braking Current (Peak) Braking Current (RMS) Base Model Number Minimum Resistance Options Available Dimensions
(H" x W" x D")
Model
Weight
 
380 - 415 VAC Drives   |   620 VDC Setpoint
  7.5 HP DC Bus 10 A 2 A M3675T-E10 62 Ω  N/A 7.00" x 2.06" x 6.75" 2 lbs  
  12.5 HP DC Bus 15 A 3.8 A M3575T-E15 41.25 Ω  N/A 12.75" x 3.00" x 8.70" -  
  25 HP DC Bus 30 A 7.75 A M3575T-E30 20.5 Ω  N/A 12.75" x 3.00" x 8.70" 32 lbs  
  63 HP DC Bus 75 A 19 A M3575T-E75 8.25 Ω  N/A 12.75" x 4.00" x 8.70" 8 lbs  
120 VAC 75 A 75 A M3452-U75EB7 8.27 Ω  A 17.75" x 7.00" x 8.10" 19 lbs
380 VAC M3452-E75B7  A 22 lbs
  100 HP DC Bus 125 A 32 A M3575T-E125 5 Ω  N/A 17.75" x 6.50" x 8.00" -  
  125 HP DC Bus 120 A 38 A M3575T-E150 4.1 Ω  N/A 17.75" x 6.50" x 8.00" -  
120 VAC 150 A 150 A M3452-U150EB7 4.13 Ω  A 17.75" x 7.00" x 8.10" 26 lbs
380 VAC M3452-E150B7  A -
  160 HP 120 VAC 200 A 200 A M3452-U200EK6 3.10 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" -  
380 VAC M3452-E200K6 A, R5, R7, R7E, R8EIP, R8PDP
  165 HP DC Bus 200 A 51 A M3575T-E200 3.1 Ω  N/A 17.75" x 7.00" x 8.00" 20 lbs  
  240 HP DC Bus 300 A 77 A M3575T-E300 2 Ω  N/A 17.75" x 7.00" x 8.00" 32 lbs  
120 VAC 300 A 300 A M3452-U300EK6 2.07 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 38 lbs
380 VAC M3452-E300K6 A, R5, R7, R7E, R8EIP, R8PDP 34 lbs
  490 HP 120 VAC 600 A 300 A M3452-U600EK6 1.04 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 38 lbs  
380 VAC M3452-E600K6 A, R5, R7, R7E, R8EIP, R8PDP 34 lbs
  530 HP DC Bus 600 A 155 A M3575T-E600 1.1 Ω  N/A 17.75" x 7.00" x 8.00" -  
  660 HP 120 VAC 800 A 400 A M3452-U800EK9 0.78 Ω R7, R7E, R8EIP, R8PDP 20.00" x 9.05" x 10.25" 45 lbs  
380 VAC M3452-E800K9 R7, R7E, R8EIP, R8PDP -
  1000 HP 120 VAC 1200 A 600 A M3452-U1200EK10 0.52 Ω R7, R7E, R8EIP, R8PDP 20.00" x 10.00" x 10.50" 38 lbs  
380 VAC M3452-E1200K10 R7, R7E, R8EIP, R8PDP -
  1330 HP 120 VAC 1600 A 1200 A M3452-U1600EM14 0.39 Ω R7, R7E, R8EIP, R8PDP 28.00" x 13.90" x 14.60" 90 lbs  
380 VAC M3452-E1600M14 R7, R7E, R8EIP, R8PDP -
  1330 HP 120 VAC 1600 A 1200 A M3452-U1600ET10 0.39 Ω R7, R7E, R8EIP, R8PDP 30.59" x 10.12" x 19.18" -  
380 VAC M3452-E1600T10 R7, R7E, R8EIP, R8PDP
 
  Peak Power  Control Voltage Braking Current (Peak) Braking Current (RMS) Base Model Number Minimum Resistance Options Available Dimensions
(H" x W" x D")
Model
Weight
 
460-480 VAC Drives   |   750 VDC Setpoint
  10 HP DC Bus 10 A 2 A M3675T-H10 75 Ω  N/A 7.00" x 2.06" x 6.75" 2 lbs  
  15 HP DC Bus 15 A 3.8 A M3575T-H15 50 Ω  N/A 12.75" x 3.00" x 7.70" 6 lbs  
  30 HP DC Bus 30 A 7.75 A M3575T-H30 25 Ω  N/A 12.75" x 3.00" x 7.70" 8 lbs  
  75 HP DC Bus 75 A 19 A M3575T-H75 10 Ω  N/A 12.75" x 4.00" x 7.70" 8 lbs  
120 VAC 75 A 75 A M3452-U75HB7 10.00 Ω A, R5, R7, R7E, R8EIP, R8PDP 17.75" x 7.00" x 8.10" 19 lbs
460 VAC M3452-H75B7 A, R5, R7, R7E, R8EIP, R8PDP 22 lbs
  125 HP DC Bus 125 A 32 A M3575T-H125 6 Ω  N/A 17.75" x 6.50" x 8.00" 17 lbs  
  150 HP DC Bus 150 A 38 A M3575T-H150 5 Ω  N/A 17.75" x 6.50" x 8.00" 17 lbs  
120 VAC 150 A 150 A M3452-U150HB7 5.00 Ω A, R5, R7, R7E, R8EIP, R8PDP 17.75" x 7.00" x 8.10" 26 lbs
460 VAC M3452-H150B7 A, R5, R7, R7E, R8EIP, R8PDP 25 lbs
  200 HP DC Bus 200 A 51 A M3575T-H200 3.75 Ω  N/A 17.75" x 7.00" x 8.00" 30 lbs  
120 VAC 200 A 200 A M3452-U200HK6 3.80 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 32 lbs
460 VAC M3452-H200K6 A, R5, R7, R7E, R8EIP, R8PDP 32 lbs
  300 HP DC Bus 300 A 77 A M3575T-H300 2.5 Ω  N/A 17.75" x 7.00" x 8.00" 21 lbs  
120 VAC 300 A 300 A M3452-U300HK6 2.50 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 35 lbs
460 VAC M3452-H300K6 A, R5, R7, R7E, R8EIP, R8PDP 35 lbs
  600 HP DC Bus 600 A 155 A M3575T-H600 1.25 Ω  N/A 17.75" x 7.00" x 8.00" 21 lbs  
120 VAC 600 A 300 A M3452-U600HK6 1.25 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 34 lbs
460 VAC M3452-H600K6 A, R5, R7, R7E, R8EIP, R8PDP
  800 HP 120 VAC 800 A 400 A M3452-U800HK9 0.93 Ω R7, R7E, R8EIP, R8PDP 20.00" x 9.05" x 10.25" 45 lbs  
460 VAC M3452-H800K9 R7, R7E, R8EIP, R8PDP 44 lbs
  1200 HP 120 VAC 1200 A 600 A M3452-U1200HK10 0.63 Ω R7, R7E, R8EIP, R8PDP 20.00" x 10.00" x 10.50" 45 lbs  
460 VAC M3452-H1200K10 R7, R7E, R8EIP, R8PDP 43 lbs
  1600 HP 120 VAC 1600 A 1200 A M3452-U1600HM14 0.47 Ω R7, R7E, R8EIP, R8PDP 28.00" x 13.90" x 14.60" 90 lbs  
460 VAC M3452-H1600M14 R7, R7E, R8EIP, R8PDP -
  1200 - 1600 HP 120 VAC 1600 A 1200 A M3452-U1600HT10 0.47 Ω R7, R7E, R8EIP, R8PDP 30.59" x 10.12" x 19.18" -  
460 VAC M3452-H1600T10 R7, R7E, R8EIP, R8PDP
 
  Peak Power  Control Voltage Braking Current (Peak) Braking Current (RMS) Base Model Number Minimum Resistance Options Available Dimensions
(H" x W" x D")
Model
Weight
 
575-600 VAC Drives   |   940 VDC Setpoint
  95 HP 120 VAC 75 A 75 A M3452-U75CB7 12.50 Ω  A 17.75" x 7.00" x 8.10" -  
575 VAC M3452-C75B7  A 22 lbs
  190 HP 120 VAC 150 A 150 A M3452-U150CB7 6.30 Ω  A 17.75" x 7.00" x 8.10" -  
575 VAC M3452-C150B7  A
  250 HP 120 VAC 200 A 200 A M3452-U200CK6 4.70 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 32 lbs  
575 VAC M3452-C200K6 A, R5, R7, R7E, R8EIP, R8PDP
  380 HP 120 VAC 300 A 300 A M3452-U300CK6 3.20 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 38 lbs  
575 VAC M3452-C300K6 A, R5, R7, R7E, R8EIP, R8PDP
  760 HP 120 VAC 600 A 300 A M3452-U600CK6 1.60 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50" 35 lbs  
575 VAC M3452-C600K6 A, R5, R7, R7E, R8EIP, R8PDP 34 lbs
  1000 HP 120 VAC 800 A 400 A M3452-U800CK9 1.20 Ω R7, R7E, R8EIP, R8PDP 20.00" x 9.05" x 10.25" 43 lbs  
575 VAC M3452-C800K9 R7, R7E, R8EIP, R8PDP 45 lbs
  1500 HP 120 VAC 1200 A 600 A M3452-U1200CK10 0.78 Ω R7, R7E, R8EIP, R8PDP 20.00" x 10.00" x 10.50" -  
575 VAC M3452-C1200K10 R7, R7E, R8EIP, R8PDP 65 lbs
  2015 HP 120 VAC 1600 A 1200 A M3452-U1600CM14 0.58 Ω R7, R7E, R8EIP, R8PDP 28.00" x 13.90" x 14.60" 90 lbs  
575 VAC M3452-C1600M14 R7, R7E, R8EIP, R8PDP -
  2015 HP 120 VAC 1600 A 1200 A M3452-U1600CT10 0.58 Ω R7, R7E, R8EIP, R8PDP 30.59" x 10.12" x 19.18" 120 lbs  
575 VAC M3452-C1600T10 R7, R7E, R8EIP, R8PDP -
  Peak Power  Control Voltage Braking Current (Peak) Braking Current (RMS) Base Model Number Minimum Resistance Options Available Dimensions
(H" x W" x D")
Model
Weight
 
690 VAC Drives   |   1090 VDC Setpoint
  110 HP 120 VAC 75 A 75 A M3452-U75YB7 14.50 Ω  A 17.75" x 7.00" x 8.10" -  
  220 HP 120 VAC 150 A 150 A M3452-U150YB7 7.30 Ω  A 17.75" x 7.00" x 8.10" -  
  300 HP 120 VAC 200 A 200 A M3452-U200YK6 5.50 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50"  32 lbs  
  440 HP 120 VAC 300 A 300 A M3452-U300YK6 3.60 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50"  34 lbs  
  875 HP 120 VAC 600 A 300 A M3452-U600YK6 1.95 Ω A, R5, R7, R7E, R8EIP, R8PDP 20.00" x 7.12" x 10.50"  38 lbs  
  1170 HP 120 VAC 800 A 400 A M3452-U800YK9 1.40 Ω R7, R7E, R8EIP, R8PDP 20.00" x 9.05" x 10.25" 43 lbs  
  1750 HP 120 VAC 1200 A 600 A M3452-U1200YK10 0.91 Ω R7, R7E, R8EIP, R8PDP 20.00" x 10.00" x 10.50" 40 lbs  
  2300 HP 120 VAC 1600 A 1200 A M3452-U1600YM14 0.68 Ω R7, R7E, R8EIP, R8PDP 28.00" x 13.90" x 14.60" 90 lbs  
  2300 HP 120 VAC 1600 A 1200 A M3452-U1600YT10 0.68 Ω R7, R7E, R8EIP, R8PDP 30.59" x 10.12" x 19.18" -  
 
  Made in the United States of America
 

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