CubeMars TW-40A-12S Speed Controller

Product Description

The TW-40A-12S underwater electronic speed controller (ESC) is a high-performance solution custom-designed for CubeMars' SW and DW series underwater thrusters.

This model supports 6–12S Li-ion/LiPo battery input (approximately 22.2–44.4 V) and features a fully sealed IP67-rated waterproof enclosure. It integrates CubeMars' proprietary startup and direction-switching algorithm, ensuring smooth motor starts and seamless forward/reverse transitions. An intelligent monitoring system continuously tracks current, voltage, motor stall, and throttle signal loss—significantly reducing the failure rate of the propulsion system.

Each standard kit includes two ESCs, enabling simultaneous control of both CW and CCW motors in a single underwater thruster system.

Core Specifications

• Dimensions: 78 × 30 × 19.9 mm
• Compatible Models: SW7 / SW12 / DW10 / DW15
• Weight (per unit): 90.33 g

Product Highlights

• Fully Sealed Waterproof Structure (IP67): Specifically engineered for underwater environments, resistant to deep-water pressure and seawater corrosion
• Proprietary Startup + Direction-Switching Algorithm: Delivers smooth, jerk-free starts and reliable forward/reverse switching
• Intelligent Status Monitoring: Built-in protections against overcurrent, overvoltage, motor stall, and throttle-loss
• Optimized for Specific Thrusters: Compatible with SW7, SW12, DW10, DW15, and other designated models
• Compact Form Factor: Single unit measures ~78 × 30 × 19.9 mm and weighs only ~90.33 g

Packaging Contents

• TW-40A-12S Underwater ESC × 2
• Certificate of Conformance × 1