Firma 40A Brushed Waterproof ESC - 2S-3S: IC3

The Spektrum Firma 40A Brushed Waterproof ESC (SPMXSE1040) delivers reliable, water-resistant control for surface applications including crawling. It supports 2–3S LiPo (7.4–11.1V) and 5–9 cell NiMH/NiCd (6–10.8V), with forward and reverse operation and braking managed via the ESC. An integrated 6.0V BEC with 3A maximum burst provides power to your receiver and servo. A pre-fitted IC3 battery lead and 3.5 mm female motor bullet connectors help streamline installation, while the compact 46 x 33 x 28 mm size and 70 g weight suit a wide range of setups.

Key Specifications

• Input voltage: 7.4–11.1V (2–3S LiPo), 6–10.8V (5–9 cells NiMH/NiCd)
• Battery input lead: 16AWG, approx. 140 mm long
• Connector type: IC3
• Motor output lead: 3.5 mm female bullet connectors
• BEC: 6.0V, maximum burst current 3A
• Forward: Yes | Reverse: Yes | Brakes: Controlled via motor/ESC
• Programmable: No
• Water-resistant: Yes
• Product application: Crawling, Surface
• Dimensions (L x W x H): 46 x 33 x 28 mm
• Weight: 70 g

Suggested Compatibility

• Brushed RC crawlers and surface vehicles within the supported voltage range
• Battery packs using IC3 connectors
• Motors with 3.5 mm male bullet connectors

In The Box

• (1) Firma 40A Brushed Waterproof ESC, 2S-3S: IC3