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M3452 Heavy Duty Braking Transistor Bonitron > Products > Overvoltage > Transistors > M3452

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Bonitron’s line of M3452 Braking Modules continues to expand and improve. With models rated up to 2300hp, Bonitron remains a leader in the field of high horsepower braking and maintains its reputation for durability and reliability.

M3452 Braking Transistor Modules 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 Frequency Drives (VFD) 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.

For high duty and overhauling loads, the Bonitron M3452 series allows for continuous, high horsepower braking. Optional advanced diagnostics allow for remote monitoring, while local indicators can pinpoint the cause of faults without diagnostic equipment. This allows you to get your systems up and running with minimal downtime. Remote configuration adds to the flexibility and reliability of your overall system. Optional networking capabilities reduce your installation wiring to allow for remote monitoring of all status outputs and operation of configuration inputs.

With the new networking options, diagnostic and control functions are now available on two of the most common remote I/O networks.

 



Model Number Control Voltage Peak Braking HP Duty
Cycle
Braking Amps (Peak) Braking Amps (RMS) Minimum Ohms  
User Manual
(Control Options)
Sales Brochure
230-240 VAC Drives   |   375 VDC Setpoint
M3452-U75LB7 120 VAC 37.5 HP 100% 75 A 75 A 5.00 A N/A Sales Brochure
M3452-L75B7 230 VAC
M3452-U150LB7 120 VAC 75 HP 100% 150 A 150 A 2.50
M3452-L150B7 230 VAC
M3452-U200LK6 120 VAC 100 HP 100% 200 A 200 A 1.90 R5 R7 R7E R7EIP R7PDP R8EIP R8PDP
M3452-L200K6 230 VAC
M3452-U300LK6 120 VAC 150 HP 100% 300 A 300 A 1.25
M3452-L300K6 230 VAC
M3452-U600LK6 120 VAC 300 HP 50% 600 A 300 A 0.65
M3452-L600K6 230 VAC
M3452-U800LK9 120 VAC 400 HP 50% 800 A 400 A 0.50
M3452-L800K9 230 VAC
M3452-U1200LK10 120 VAC 600 HP 50% 1200 A 600 A 0.32 N/A
M3452-L1200K10 230 VAC
M3452 Model Number Scheme
*DC Bus Voltage code only used if different from the Control Voltage.
Model Number Control Voltage Peak Braking HP Duty
Cycle
Braking Amps (Peak) Braking Amps (RMS) Minimum Ohms                  
User Manual
(Control Options)
Sales Brochure
380 - 415 VAC Drives   |   620 VDC Setpoint
M3452-U75EB7 120 VAC 62.5 HP 100% 75 A 75 A 8.27 A N/A Sales Brochure
M3452-E75B7 380 VAC
M3452-U150EB7 120 VAC 125 HP 100% 150 A 150 A 4.13
M3452-E150B7 380 VAC
M3452-U200EK6 120 VAC 165 HP 100% 200 A 200 A 3.10 R5 R7 R7E R7EIP R7PDP R8EIP R8PDP
M3452-E200K6 380 VAC
M3452-U300EK6 120 VAC 250 HP 100% 300 A 300 A 2.07
M3452-E300K6 380 VAC
M3452-U600EK6 120 VAC 500 HP 50% 600 A 300 A 1.03
M3452-E600K6 380 VAC
M3452-U800EK9 120 VAC 665 HP 50% 800 A 400 A 0.78
M3452-E800K9 380 VAC
M3452-U1200EK10 120 VAC 1000 HP 50% 1200 A 600 A 0.52 N/A
M3452-E1200K10 380 VAC
M3452-U1600EM14 120 VAC 1330 HP 75% 1600 A 1200 A 0.39
M3452-E1600M14 380 VAC

M3452 Model Number Scheme
*DC Bus Voltage code only used if different from the Control Voltage.

Model Number Control Voltage Peak Braking HP Duty
Cycle
Braking Amps (Peak) Braking Amps (RMS) Minimum Ohms                  
User Manual
(Control Options)
Sales Brochure
460-480 VAC Drives   |   750 VDC Setpoint
M3452-U75HB7 120 VAC 75 HP 100% 75 A 75 A 10.00 A N/A Sales Brochure
M3452-H75B7 460 VAC
M3452-U150HB7 120 VAC 150 HP 100% 150 A 150 A 5.00
M3452-H150B7 460 VAC
M3452-U200HK6 120 VAC 200 HP 100% 200 A 200 A 3.80 R5 R7 R7E R7EIP R7PDP R8EIP R8PDP
M3452-H200K6 460 VAC
M3452-U300HK6 120 VAC 300 HP 100% 300 A 300 A 2.50
M3452-H300K6 460 VAC
M3452-U600HK6 120 VAC 600 HP 50% 600 A 300 A 1.25
M3452-H600K6 460 VAC
M3452-U800HK9 120 VAC 800 HP 50% 800 A 400 A 0.93
M3452-H800K9 460 VAC
M3452-U1200HK10 120 VAC 1200 HP 50% 1200 A 600 A 0.63 N/A
M3452-H1200K10 460 VAC
M3452-U1600HM14 120 VAC 1600 HP 75% 1600 A 1200 A 0.47
M3452-H1600M14 460 VAC

M3452 Model Number Scheme
*DC Bus Voltage code only used if different from the Control Voltage.

Model Number Control Voltage Peak Braking HP Duty
Cycle
Braking Amps (Peak) Braking Amps (RMS) Minimum Ohms                  
User Manual
(Control Options)
Sales Brochure
575-600 VAC Drives   |   940 VDC Setpoint
M3452-U75CB7 120 VAC 95 HP 100% 75 A 75 A 13.00 A N/A Sales Brochure
M3452-C75B7 575 VAC
M3452-U150CB7 120 VAC 190 HP 100% 150 A 150 A 6.30
M3452-C150B7 575 VAC
M3452-U200CK6 120 VAC 250 HP 100% 200 A 200 A 4.70 R5 R7 R7E R7EIP R7PDP R8EIP R8PDP
M3452-C200K6 575 VAC
M3452-U300CK6 120 VAC 380 HP 100% 300 A 300 A 3.20
M3452-C300K6 575 VAC
M3452-U600CK6 120 VAC 760 HP 50% 600 A 300 A 1.60
M3452-C600K6 575 VAC
M3452-U800CK9 120 VAC 1000 HP 50% 800 A 400 A 1.20
M3452-C800K9 575 VAC
M3452-U1200CK10 120 VAC 1500 HP 50% 1200 A 600 A 0.78 N/A
M3452-C1200K10 575 VAC
M3452-U1600CM14 120 VAC 2015 HP 75% 1600 A 1200 A 0.58
M3452-C1600M14 575 VAC

M3452 Model Number Scheme
*DC Bus Voltage code only used if different from the Control Voltage.

Model Number Control Voltage Peak Braking HP Duty
Cycle
Braking Amps (Peak) Braking Amps (RMS) Minimum Ohms                 Sales Brochure
User Manual
(Control Options)
690 VAC Drives   |   1090 VDC Setpoint
M3452-U75YB7 120 VAC 110 HP 100% 75 A 75 A 15.00 A N/A Sales Brochure
M3452-U150YB7 120 VAC 220 HP 100% 150 A 150 A 7.50
M3452-U200YK6 120 VAC 300 HP 100% 200 A 200 A 5.50 R5 R7 R7E R7EIP R7PDP R8EIP R8PDP
M3452-U300YK6 120 VAC 440 HP 100% 300 A 300 A 3.60
M3452-U600YK6 120 VAC 875 HP 50% 600 A 300 A 1.95
M3452-U800YK9 120 VAC 1170 HP 50% 800 A 400 A 1.40
M3452-U1200YK10 120 VAC 1750 HP 50% 1200 A 600 A 0.91 N/A
M3452-U1600YM14 120 VAC 2300 HP 75% 1600 A 1200 A 0.68

M3452 Model Number Scheme
*DC Bus Voltage code only used if different from the Control Voltage.

Control Board Options

Control Board                       (Add to End of Model #)  A     (Std.) R5 R7 R7E R7
EIP
R7
PDP
R8
EIP
R8
PDP
Inputs
Enable     D D N N D N D N
Master/Slave Select     D D N N N N
Bus Discharge     D D N N D N D N
Fault Reset     D D N N D N D N
Setpoint Adjust             N N
Outputs
Module Ready D           D N D N
Logic Power Ok   D   D N N N N
Not IGBT Open   D            
Not IGBT Shorted   D   D N N N N
Not Overtemp   D   D N N N N
Not Blown Fuse   D   D N N N N
Control Ready     D D N N    
Master/Slave Status     D D N N N N
Power Stage Ready     D D N N    
Not Overcurrent     D D N N N N
Bus Voltage             N N
Active Braking             N N
Duty Cycle             N N
Temperature             N N
Fault History             N N
Blink Codes    
D - Discrete (Hard Wired)
N - Network
  • "D" - Discrete Hardwire Connection
  • "N" - Network Connection
  • 75 - 150 Amp Available with "A"
  • 200 - 800 Amp Options
    • A (Std), R5, R7, R7E, R7EIP, R7PDP, R8EIP, R8PDP
  • 1200 and 1600 Amp Options
    • R7 (Std), R7E, R7EIP, R7PDP, R8EIP, R8PDP
    • R7EIP, R8EIP– Ethernet over I/P Networking
    • R7PDP, R8PDP– Profibus DP Networking
  • One control board per unit
  • All units above 200A have Master/Slave capability

 

Made in the United States of America