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Remote Monitoring

MPPT Solar Charge Controllers

CoolMax SRX

Featuring over thirty years of AERL's MPPT and Battery Charging experience, the CoolMax SRX offers a superior tracking algorithm, an ultra-low loss, high efficiency thermal design, backed by our Australian factory warranty and local support.

Key Features

Engineered for reliability and performance in the most demanding environments.

High Input Voltage for Ease of Install

600V PV input capability simplifies installation and reduces wiring costs for your solar array.

On-Board Ground Fault Detection

Built-in safety features to ensure system protection and compliance with electrical standards.

PV Array Oversizing Support

Support for PV array oversizing maximizes energy harvest in less than ideal conditions.

System selection

Choose the right SRX documentation

Match the controller to your battery system before sizing the PV array. The specification table below describes the 24V/48V version; use the linked 120V documents for that model’s ratings.

SRX 48V documentation

Start with the 48V edition for its supported battery-voltage range, charging limits and installation requirements.

SRX 120V documentation

Use the dedicated 120V edition when specifying a 120V battery system. Check its charging and PV array limits separately.

Technical Specifications

Industry-leading technology designed for reliability and performance in demanding environments

Key Features

  • High Input Voltage for Ease of Install
  • Supports PV Oversizing
  • Reverse Polarity and Current Protection
  • Designed and Engineered in Australia
Weight5.65 kg
Dimensions (H x W x D)432 x 192 x 89 mm
Enclosure TypeIndoor Type 1 / IP20
Mounting MethodWall Mount Bracket
Input / Output Power ConnectorsScrew Terminals (8 mm² -> 42mm²)
Earth Leakage Current DetectionYes
Designed and Engineered InAustralia

Resources & Documentation

Access technical specifications, installation guides, and certification documents

Showing 9 resources

Datasheet

SRX (48V) – Overview

Technical specifications and performance data

Datasheet

SRX (120V) – Overview

Technical specifications and performance data

Guide

SRX Warranty Statement

Technical documentation

Manual

SRX (48V) – User Manual

Comprehensive installation and operation guide

Manual

SRX (120V) – User Manual

Comprehensive installation and operation guide

Guide

Example System Wiring Diagram

Detailed wiring diagrams for installation

Guide

SRX – User Software

Configuration and monitoring software

Guide

USB Driver Installer (optional)

Technical documentation

Guide

Using the SRX with the Selectronic SP Pro

Integration guide for SP Pro inverters

Ready to enhance your standalone power system?

Contact our team to learn how the CoolMax SRX can maximize efficiency and reliability in your standalone power system.