How to choose the right ESC for an RC aircraft
ESC selection by maximum current, voltage, BEC, safety margin, cooling, connector choice and the real load from motor and propeller.
Firma 2-in-1 Brushless Crawler Motor/ESC: 2300Kv
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Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
Firma 2-in-1 Brushless Crawler Motor/ESC: 2300Kv is a Spektrum product intended for surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics. This page presents the practical buying information a customer needs before ordering: fit, SKU, image, category, specifications and usage advantages.
The content is written for purchasing through RC-MODEL, without supplier prices or links to competing stores.
Key Advantages
- Organized under the Spektrum ESC and speed-control range.
- Intended for surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics.
- Check model fit, connector type, voltage range and Spektrum protocol compatibility before ordering.
- Includes local product imagery and structured specifications for easier comparison inside RC-MODEL.
Core Specifications
- Manufacturer: Spektrum
- Brand: Spektrum
- Product Code: SPMXSEM1040B
- Product Family: Spektrum ESC and speed-control range
- Application: 1/10 Rock Crawler
- Compatibility Focus: Check model fit, connector type, voltage range and Spektrum protocol compatibility before ordering.
- Spektrum Category: Cars & Trucks / Parts, Electronics & Accessories / Motors
- Input Voltage: 2-3S LiPo, 6-9 Cells NiMH
- Motor Type: Brushless
- Auto Cutoff: Yes
- BEC Voltage: 6V/7.4V Adjustable, Continuous Current 4A (Switch Mode)
- Connector Type: IC3
- Forward: Yes
- Maximum Burst Current: 160A
Relevant RC Academy guides
Learn before you buy
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
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| Technical Specifications | |
| Manufacturer | Spektrum |
| Brand | Spektrum |
| Product Code | SPMXSEM1040B |
| Spektrum Category | Cars & Trucks / Parts, Electronics & Accessories / Motors |
| Connector Type | IC3 |
| Product Family | Spektrum ESC and speed-control range |
| Application | 1/10 Rock Crawler |
| Compatibility Focus | Check model fit, connector type, voltage range and Spektrum protocol compatibility before ordering. |
| Auto Cutoff | Yes |
| BEC Voltage | 6V/7.4V Adjustable, Continuous Current 4A (Switch Mode) |
| Forward | Yes |
| Input Voltage | 2-3S LiPo, 6-9 Cells NiMH |
| Maximum Continuous Current | 40A |
| Product Length | 2.28" (58 mm) |
| Product Weight | 201g (including wire plug) |
| Programmable | Yes |
| Reverse | Yes |
| Motor Type | Brushless |
| Overload Protection | Yes |
| Water-Resistant | Yes |
| Product Application | Crawling, Surface |
| Motor Size | 550-Size |
| Number of Poles | 4 |
| RPM/Volt (Kv) | 2300Kv |
| Outer Diameter | 1.46" (37 mm) |
| Shaft Diameter | 0.125" (3 mm) |
| Maximum Burst Current | 160A |
| Shaft Length | 0.63" (16 mm) |
| Sensored | Yes |
Tags: Spektrum, SPMXSEM1040B, Spektrum ESC and speed-control range, Spektrum Catalog, Spektrum Motors, Spektrum Surface Electronics, RC-MODEL