Losi 1/10- and 1/18-scale Brushless Systems

Oct 18, 2007 No Comments by

Losi have two new brushless systems. The systems are offered as combos and you can buy the motor or speed controls seperately. The 1/10-scale motors come in the following kV ratings: 7500, 6400 and 4800. The 1/18-scale motors come in the following kV ratings: 9400, 8200, 7400 and 6000.

Below are the spec’s for the 1/10-scale 7500 combo:

From Losi:

1/10 Xcelorin 7500Kv Brushless Combo

Key Features:

  • Forward/Brake with Reverse or Forward/Brake settings
  • Sintered Neodymium rotor
  • 100A continuous current with 540A peak
  • Losi EC3 power connector pre-wired
  • High-speed cooling fan for lower running temperatures and protection
  • Low voltage cutoff to protect your investment
  • Four LED’s to indicate functions
  • Two preset drive profiles with unlimited potential with a PC
  • Powerful, high-speed brushless motor
  • Precision motor ball bearings for smoother operation
  • No motor maintenance required

Xcelorin brushless systems from Losi represent the latest development in brushless power and performance. The 1/10 Xcelorin Motors and ESCs offer features and specifications desired by the electric RC enthusiasts. With ESC features like, pre-wired high-speed cooling fan, low voltage cutoff protection, multiple programming options and much more. The motor’s feature low-profile solder tabs with a protective cover, precision ball bearings for smooth operation, Sintered Neodymium rotors and best of all no motor maintenance is required. For higher speeds and longer run times look to Losi and the Xcelorin brushless systems.

ESC Specs
Type: Sensorless Brushless
Forward: Y
Reverse: Y
Brake: Y
Time Delay Brake: Y
Throttle Limiting: Y (adjustable in 10% steps)
Programmable: Full (via quick program card or PC)
Continuous Maximum Current: 100A
Momentary Peak Current: 540A
Input Connector Types: Losi EC3 style
Dimensions (WxLxH): 1.16 x 1.54 x 1.3 in (29.5 x 39 x 33.2mm)
Weight: 1.7 oz (48 g)
BEC Voltage: 6.1V, 3A
PWM Frequency: Optimized for Spektrum or Traditional radio systems

Motor Specs
Type: Sendorless Brushless
Size: 540
Bearings or Bushings: Precision ball bearings
Voltage: NiMH 6-12-cells; LiPo 2-3-cell
RPM/Volt (Kv): 7500Kv
Weight: 6.35 oz (180g)
Overall Diameter: 1.4 in (35.8mm)
Shaft Diameter: 0.125 in (3.17mm) with flat
Shaft Length: 0.18 in(4.6mm)
Overall Length: 2.15 in (35.8mm)


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About Matt:I think it’s safe to say I’ve done a little bit of everything in RC. That said, I predominately race off-road and my current passion is short course. One of my all-time favorite classes is oval carpet racing. Besides racing, I can often be found working on one of my many never-complete projects, and it seems I have an ever growing collection of rock crawlers—specifically scale crawlers. Matt’s 5 Hot Topics: Short course, Racing, Scale Builds, Crawling and the General RC Hobby
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