EMAX E3 1407 Brushless Motor 2800KV 3300KV 4100KV – Emax USA

EMAX E3 1407 Brushless Motor

The EMAX E3 1407 is a high-performance micro brushless motor engineered for 3"–4" FPV builds, cinewhoops, and ducted fan platforms on 3S–4S. Built around a 9N12P stator with a Ø19.1 × 29.8mm profile, 2mm steel shaft with M5 CW prop adapter thread, and a compact 12×12mm 4×M2 mounting pattern, the E3 1407 packs up to 413W into just 15.4g. N52SH arc magnets, NSK precision bearings, Al 7075 anodizing, and single-strand winding deliver smooth, reliable power across three KV options.

Key Features

• Stator configuration: 9N12P
• Available KV ratings: 2800KV / 3300KV / 4100KV
• Optimized for 3"–4" props and ducted fan builds on 3S–4S
• 2mm steel bearing shaft, M5 CW prop adapter thread
• 12×12mm — 4×M2 mounting pattern
• 150mm 24AWG silicone wire leads
• N52SH arc magnets, NSK precision bearings
• Al 7075 anodizing, single-strand winding

KV / Cell / Propeller Guide

• 2800KV — 4S — 3"–4" (HQ D90, GF4023, HQ 4×3, HQ 4×4.3, HQ Duct76mm 8-blade, HQ Duct85mm 6-blade) | Max Power: 264W @ 4S
• 3300KV — 3–4S — 3"–4" (HQ 3×4, T3056, AVAN3.5×2.8, GF3052, GF4023, HQ 4×3, HQ D90, HQ Duct85mm 6-blade) | Max Power: 360W @ 4S
• 4100KV — 3–4S — 3"–4" (GF3028, HQ 3×4, GF3052, T3056, AVAN3.5×2.8, GF4023, HQ 4×3, HQ 4×4.3, HQ D90) | Max Power: 413W @ 4S

Specifications

• Motor Model: E3 1407
• Framework: 9N12P
• Dimensions: Ø19.1 × 29.8mm
• Stator Height: 7mm
• Weight (with wire): 15.4g
• Bearing Shaft: 2mm
• Prop Adapter Shaft Thread: M5 CW
• Lead: 24AWG 150mm silicone wire
• Mounting: 12×12mm — 4×M2, Ø12mm bolt circle
• KV Options: 2800KV / 3300KV / 4100KV
• Peak Current (2800KV @ 4S): 16.5A | Max Power: 264W
• Peak Current (3300KV @ 4S): 22.5A | Max Power: 360W
• Peak Current (4100KV @ 4S): 25.8A | Max Power: 413W

Package Includes

• 5× M2×5mm screws
• 5× M2×6mm screws
• 1× Aluminum M5 nylock nut