T-Motor AIR 20A 3-4S Multi-Rotor UAV ESC
Description:
T-MOTOR AIR 20A 3–4S Multi-Rotor UAV ESC is a compact and reliable brushless motor controller designed for multirotor UAVs and F3P aircraft. Featuring optimized UAV firmware, intelligent adaptive control, fast throttle response, and low-interference signal design, it provides smooth and stable propulsion performance for small and medium drone platforms.
AIR 20A 3-4S ESC Highlights:
- 20A multi-aircraft electronic speed controller (ESC)
- Special core program for multi-rotor controllers
- Supports a signal frequency of up to 621 Hz
- Twisted-pair signal cable minimizes crosstalk for stable flights.
Specifications:
| Parameter | Specification |
|---|---|
| Model | AIR 20A 4S |
| ESC Type | Multi-Rotor Brushless ESC |
| Continuous Current | 20 A |
| Peak Current (10 s) | 30 A |
| Input Voltage | 3S–4S LiPo (11.1V–14.8V) |
| Signal Frequency | Up to 621 Hz |
| Throttle Signal Frequency | 50–600 Hz |
| BEC | No |
| Weight | 14 g |
| Dimensions | 50 × 21 × 8 mm |
| Motor Connector | 3.5 mm Bullet Connectors |
| Application | Multi-Rotor UAVs, F3P Aircraft |
Packing Includes:
- 1 x T-Motor AIR 20A 3-4S ESC
- 1 x Accessories pack
Technical Specifications
| Brand | T -Motor |
|---|---|
| Current Rating | 20A |
| Cell Configuration | 4S |
| SKU | AI4937 |
| Weight | 0.0 kg |
| Availability | Out of Stock |
Applications & Use Cases
The T-Motor AIR 20A 3-4S Multi-Rotor UAV ESC is a versatile drone motor used across a wide range of applications including FPV racing drones, agricultural spray drones, aerial photography platforms, and custom multirotor builds.
Common use cases:
- Replacement motor for crashed or worn-out drone
- Building a custom quadcopter or hexacopter from scratch
- Upgrading to a more efficient motor for longer flight times
This product is ideal for drone builders, FPV pilots, and agricultural drone operators.
Technical Tip: When selecting a drone motor, match the KV rating to your propeller size and battery voltage. Lower KV = larger props + more efficiency; higher KV = smaller props + more speed.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine T -Motor product sourced from authorized channels




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