---
product_id: 38673885
title: "SR-48300 Motor Controller (SR48300)"
brand: "alltrax"
price: "£547.56"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/38673885-sr-48300-motor-controller-sr48300
store_origin: GB
region: Great Britain
---

# 300A Peak Power USB Programmable Auto-Throttle Calibration SR-48300 Motor Controller (SR48300)

**Brand:** alltrax
**Price:** £547.56
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power Your Passion with Precision!

## Quick Answers

- **What is this?** SR-48300 Motor Controller (SR48300) by alltrax
- **How much does it cost?** £547.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/38673885-sr-48300-motor-controller-sr48300)

## Best For

- alltrax enthusiasts

## Why This Product

- Trusted alltrax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Manufactured by Alltrax, a trusted name in motor control technology.
- • **Versatile Voltage Range:** Compatible with 12-48V systems, making it perfect for various applications.
- • **Seamless USB Programming:** Easily customize settings with flexible USB programming for tailored performance.
- • **Unleash Peak Performance:** Experience a powerful 300 Amps peak mode for unmatched motor control.
- • **Smooth Operation Guaranteed:** Enjoy auto-throttle calibration that ensures a smooth and responsive ride.

## Overview

The SR-48300 Motor Controller by Alltrax is a high-performance DC motor controller designed for series and permanent magnet motors. With a peak capability of 300 Amps and a versatile voltage range of 12-48V, it offers seamless USB programming and auto-throttle calibration for smooth operation, making it an essential tool for any serious motor enthusiast.

## Description

Color coded terminals  DC motor controller for series and permanent magnet motors  ABS + PC510 flame resistant thermal plastic enclosure  All copper heat sinks  Sealed epoxy UL-94-VO / 5VA flame rating (best in industry)  Adjustable undervoltage cutback 8-30 VDC  Adjustable overvoltage shutdown 30-60 VDC  Operating Frequency: 18k Hz  Voltage drop @ 100amps: <0.18V  Control voltage KSI keyswitch and reverse: 12-48V Nom, 60 VDC Max  Powered Up Standby Current <0.02A (20mA)  Relay solenoid drive output current: 5amp peak, 1.0A Continuous NOTE: IF YOU WOULD LIKE YOUR CONTROLLER PROGRAMMED BEFORE SHIPPING, PLEASE TELL US YOUR THROTTLE TYPE & BATTERY PACK VOLTAGE.

## Features

- DC Motor Controller For Series & Permanent Magent Motors
- 300 Amps, 350 Amps (Peak Amp Mode), 12-48 Voltage Range
- Flexible USB programming, Auto-throttle calibration for smooth operation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Alltrax |
| Part Number | CON-SR-48300 |
| Item model number | SR-48300 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![SR-48300 Motor Controller (SR48300) - Image 1](https://m.media-amazon.com/images/I/61ryImztugL.jpg)

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**Shop now:** [https://www.desertcart.co.uk/products/38673885-sr-48300-motor-controller-sr48300](https://www.desertcart.co.uk/products/38673885-sr-48300-motor-controller-sr48300)

---

*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-25*