MAD StableCore A508 Drone Arm Set 340KV Integrated Power System, 6S LiPo, IP45, 18x5.7 Folding Prop

Overview

MAD StableCore A508 drone arm set is an integrated UAV power system designed for training drones, featuring a modular plug-and-play structure for rapid deployment and simplified maintenance.

Key Features

• Lightweight unit combo weight: 312±10 g (with propeller blades)
• Max thrust: 3.9 kg/axis @24V sea level
• Recommended take-off weight: 1.2~1.5 kg/axis @24V sea level
• 18-inch matte folding propellers: 18x5.7 inch (463.5x144.78)
• Intelligent ESC with CAN/PWM dual protocols
• Operating temperature: -20~50°C
• Protection level: IP45
• High-temperature-resistant design: maximum temperature tolerance of 180°C
• Supports fault self-diagnosis to help reduce O&M costs

Specifications

Engineering drawing (key dimensions & mounting)

• Overall length (side view): 96.9 mm
• Front view diameters: Ø56 mm, Ø55.2 mm
• Carbon tube depth: 31 mm (Ø25)
• Mounting/thread notes: M3-5; 4*M3-12; 15.5 mm
• Propeller span in drawing: 463.5 mm
• Wiring labels: PWM (white), GND (black), CAN L (grey), CAN H (red), JP-3P male plug
• Cable lengths in drawing: arranged cables 850±10 mm; power cable 700±10 mm

Benchmark (6S, propeller: HAVOC 18x5.7 folding)

For best performance, operation at the recommended take-off weight is advised. Avoid overweight operation, as exceeding 1.2x the maximum recommended take-off weight can significantly affect performance and safety.

ESC Operation & Protection

Operation instructions

• Turn on the transmitter with the throttle stick at the lowest position.
• Connect the system to the battery. The motor will emit a long “Ding------” tone indicating the ESC is ready for normal startup.

ESC protection functions

• Stall protection: Attempts motor restart after stall detection. If normal startup fails after a period, output is cut. Return PWM throttle signal to 0% to clear the error; normal operation resumes after restarting.
• Overcurrent protection: If current approaches short-circuit levels for an extended period, output is cut off. Repower the ESC to resume normal operation.
• MOS over-temperature warning: When MOS temperature exceeds 105°C, warning lights flash until MOS temperature drops below 65°C.
• Power-on overvoltage/undervoltage protection: On power-on, voltage below 9 V or above 28 V triggers an overvoltage/undervoltage alarm and prevents normal motor startup.
• Throttle signal loss protection: Output is cut immediately when throttle signal loss is detected; output resumes automatically when the signal is restored.

Audible tone explanations

Flash light instructions

Applications

• Training UAV / training drone platforms
• Expanded multi-scenario use: aerial photography, surveying, mapping, and public safety tasks

For compatibility questions (airframe, carbon tube size, wiring, or ESC protocol), contact support@rcdrone.top or visit https://rcdrone.top/.

Details

The MAD StableCore A508 drone arm integrates the motor, 18-inch folding propeller, and ESC for a lightweight, modular UAV setup.

MAD StableCore A508 KV340 specifications list 4–5S LiPo compatibility, 25 mm carbon tube fit, and operating temperature range.

MAD StableCore A508 benchmark data lists 6S test results across throttle settings, including thrust, RPM, input/output power, and efficiency.

The ESC operation guide lists startup steps, common protection modes, and tone/flash patterns to help diagnose throttle and voltage issues.