PA Quantum 45A Pro ESC user-selectable HV SBEC (6.0/7.4/8.0v)

PA Quantum 45A Pro ESC user-selectable HV SBEC (6.0/7.4/8.0v)


New Pro version, with upgraded stronger user-selectable HV SBEC (6.0 / 7.4 / 8.0v)

SKU: AC-2189HV - Need Help? Contact Us Leave Feedback


Beware of copies!

PA Quantum Pro line features outstanding quality backed by equally outstanding service since 2003.
The Quantum Pro range has developed over the years and has proven to be reliable and efficient. Unfortunately, however, this success has also attracted companies who have sought to copy our ESCs. Customers are being confused by similar packaging and instruction manual. Some vendors are suggesting these copies are in fact PA Quantum, or produced at our manufacturing facility. Beware of cheap imitations!! BAD ESC = CRASHED PLANE.


Quantum Pro adjustable HV SBEC

This is the latest edition of our Quantum Pro Electronic Speed Control (ESC) featuring a high output SBEC capable of delivering 6v, 7.4v or 8.4v.  It ships preconfigured for plug-and-play use with Thrust brushless motors.  Years of R&D and experience has culminated in this extremely reliable, efficient and robust ESC.



  • • Selectable high voltage switching BEC (Battery Eliminator Circuit)
  • • Powerful and reliable SBEC – capable of 8 Amp peak
  • • Smooth and accurate throttle linearity
  • • New design larger efficient heat sink
  • • Designed, tuned and optimized for Thrust™ motors
  • • Fully programmable Microprocessor Controlled for all applications
  • • User friendly interface for quick and easy hassle free programming
  • • Exceptionally low resistance for efficient cool operation
  • • High rate switching with high RPM brushless motor support
  • • Advanced programming software
  • • Excellent warranty and support
  • • Rugged surface mount industry grade components for added reliability and crash durability


Quantum ESC allows you to program all functions to fit your specific needs, which makes it very efficient and user friendly:

  • • Brake setting (we recommend using brake only for folding props applications)
  • • Battery type (LiPo or NiCd/NiMh)
  • • Low voltage cutoff setting
  • • Factory default setup restore
  • • Switching frequency
  • • Low Voltage Cutoff type – LVC (power reduction or immediate shutoff)
  • • Timing settings (to enhance ESC efficiency and smoothness)
  • • Soft acceleration start ups (for delicate gearbox and helicopter applications)
  • • Motor rotation (clockwise\counterclockwise)
  • • Governor mode (for helicopter applications)


Built-in safety features:

  • • Thermal overload protection
  • • Automatic throttle shut-off if signal is lost
  • • Power arming protection (to prevent accidental motor spool-up when switched ON)
  • • ESC is equipped with audible alert tones to indicate abnormal conditions



Quantum 30 Pro Quantum 45 Pro Quantum 70 Pro
Continuous current 30A 45A 70A
Burst Current (<10s) 35A 55A 85A
Switching BEC Output

6V/7.4V/8V (3 pins adjustable)
6A (continuous)
8A (0.2sec peak)

6V/7.4V/8V (3 pins adjustable)
6A (continuous)
8A (0.2sec peak)

6V/7.4V/8V (3 pins adjustable)
6A (continuous)
8A (0.2sec peak)

LiPo 2-4 Cells 2-6 Cells 2-6 Cells
NiMh/NiCd 6-12 Cells 6-18 Cells 6-18 Cells


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