SCORPION HK-4525-520KV-ULTIMATE | C3359-140303-01

The Scorpion HK-45 series motor* is designed for using on 700 class helicopters running on 12-cell Li-Po power. This motor represents the most technologically advanced power source ever offered for a 700 class electric helicopter and also produces 20% more torque than the Scorpion popular HK4035 series motors and exceed 89% efficiency. This new 4525 Ultimate has a new flux design, it has a lower internal resistance and a higher efficiency. The continues power rating are the same as the 4525LE but it has a higher peak rating.Each of the new HK-4525-520KV ULTIMATE motor is wound with a single strand of 1.4mm wire for the highest possible efficiency. This motor is capable of running continuously at an input power of 4450 watts at 100 amps, and can handle peak inputs of 10200 watts and 230 amps for 2 seconds.

• For the best overall combination of quality, performance, and value, use Scorpion Motors in your helicopter
• *This motor is using 30mm bolt spacing on the mounting with M4 Screw holes

• Stator Diameter: 45 mm (1.77 in)
• Stator Thickness : 25 mm (0.98 in)
• No. of Stator Arms : 12
• No. of Stator Poles : 10
• Motor Wind : 5+6T YY
• Motor Wire : 1-Strand 1.4 mm
• Motor Kv : 520KV RPM/Volt
• No-Load Current (Io/10V) : 1.75 Amps
• Motor Resistance (RM) : 0.012 Ohms
• Max Continuous Current : 100 Amps
• Max Continuous Power : 4450 Watts

• Weight : 487 Grams (17.17 oz)
• Outside Diameter : 56.7 mm (2.23 in)
• Shaft Diameter : 5.98 mm (0.24 in)
• Body Length : 53.4 mm (2.10 in)
• Overall Shaft Length : 91.5 mm (3.60 in)
• Max Lipo Cell : 12s
• Max Peak Current : 230A (2 seconds)
• Max Peak Power : 10200 Watts (2 seconds)
• Motor Timing : 5 to 15 deg
• Drive Frequency : 8kHz