EMAX ECOII 5215 Brushless Motor 230KV 260KV 300KV 360KV 420KV – Emax USA

EMAX ECOII 5215 Brushless Motor

The EMAX ECOII 5215 is a high-efficiency, large-format brushless motor engineered for long-range FPV platforms, heavy-lift multirotors, and cinematic builds demanding sustained power and precision. Built around a 24N28P stator configuration with a compact Ø52 × 46.5mm profile, the ECOII 5215 delivers exceptional thrust-to-weight efficiency across a wide KV range — from 230KV on 12S with 17" props all the way to 420KV on 8S with 13" props. Five KV options let you dial in the exact power curve for your airframe and battery configuration.

Key Features

• Stator configuration: 24N28P
• Available KV ratings: 230KV / 260KV / 300KV / 360KV / 420KV
• Wide compatibility: 8S and 12S builds, 13"–17" propellers
• 5mm steel bearing shaft
• 25×25mm — 4×M3 mounting pattern
• 300mm 14AWG silicone wire leads
• Precision bearings and anodized finish
• Multi-strand winding for smooth, efficient power delivery

KV / Cell / Propeller Guide

• 230KV — 12S — 17" props (HQ1708, GF1708, 1708)
• 260KV — 12S — 15" props (HQ1507, GF1507)
• 300KV — 8S / 12S — 13"–17" props (HQ1309, 1507, HQ1708, GF1708)
• 360KV — 8S — 13"–17" props (HQ1308, GF1308, HQ1507, HQ1708)
• 420KV — 8S — 13"–15" props (HQ1309, GF1309, 1507, HQ1507)

Specifications

• Motor Model: ECOII 5215
• Stator: 52 × 15mm (24N28P)
• Dimensions: Ø52 × H46.5mm
• Weight (with wire): 390g
• Bearing Shaft: 5mm
• Lead: 14AWG 300mm
• Mounting: 25×25mm — 4×M3
• KV Options: 230KV / 260KV / 300KV / 360KV / 420KV

Package Includes

• 4× M3×8 screws
• 1× M5 nylock nut
• 1× Paddle gasket
• 1× Propeller shaft sleeve