Introduction

If the current from the PV array reaches 85 amps, the controller will turn off to protect the circuitry. In the event of a shutdown, the controller automatically resets itself after

10 minutes (if overcurrent condition is no longer present).

See “Operating Mode Jumper” on page 20 for information on configuring this function.

Automatic PV Array Night Disconnect

When using PV Charge Control mode, the PV array is automatically disconnected from the battery at night to prevent reverse leakage of power. This eliminates the need for a blocking diode between the battery and the PV array. If thin-film or amorphous solar modules are being used, diodes may still be required to prevent damage from partial shading conditions.

Check the documentation provided with the PV modules.

Diversion Controller

The C-Series controller can operate as a Diversion Controller, also called a shunt regulator, to manage battery charging from alternative energy sources such as PV, wind or hydroelectric generators. A diversion controller monitors battery voltage and, when the voltage exceeds the settings for your charge stage (whether bulk or float), the power is diverted from the source (solar, wind, or hydro generator) to a “dump” load which will dissipate the excess power into heat.

When used for this purpose, the C-Series controller varies an amount of battery voltage to a “dump load” in order to redirect the excess power generated from over-charging the batteries. This allows the charging source to remain under constant load to prevent an over-speed condition which could occur if the charging source is suddenly disconnected from the battery–as series regulators do.

Consult your dealer for recommendations on diversion load type and regulator size.

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Xantrex Technology C40, C35, C60 owner manual Diversion Controller, Automatic PV Array Night Disconnect
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C35, C60, C40 specifications

Xantrex Technology is a renowned name in the field of renewable energy solutions, particularly known for its robust line of solar charge controllers. Among its flagship products are the C-Series models: C40, C60, and C35. These charge controllers are specifically designed to optimize the use of solar panels, ensuring efficient energy conversion and battery management for off-grid renewable energy systems.

The C40 model stands out with its impressive 40-amp rating, making it suitable for larger solar installations. It features advanced microprocessor technology, enabling precise control over battery charging and discharging processes. This model supports multiple battery types, including flooded lead-acid, gel, and sealed batteries, allowing users to customize their energy systems according to their specific requirements. One of the key characteristics of the C40 is its easy-to-read LCD display, which provides real-time information on system performance, battery voltage, and charging status.

Moving to the C60, this model offers a higher capacity, rated at 60 amps. The C60 is designed for larger applications, such as RVs, boats, and remote cabins, where higher power requirements are common. It shares many features with the C40 but is equipped with additional capabilities to enhance its versatility. One notable characteristic is the built-in load control, which allows users to manage power distribution to connected devices intelligently. The C60 also incorporates a temperature sensor that adjusts charging parameters according to the battery’s temperature, protecting it from overcharging and extending its lifespan.

The C35, while a bit smaller with a 35-amp rating, is designed to cater to medium-sized applications. It offers similar functionalities as its counterparts, including support for multiple battery types and an intuitive LCD display. The C35 is an ideal solution for homeowners and small businesses looking for reliable performance without the need for extensive power management.

All three models feature a durable design, built to withstand the rigors of outdoor use. With a focus on user-friendly operation, these charge controllers come equipped with straightforward installation processes, making them accessible to both seasoned professionals and newcomers to solar energy. Additionally, their capability to integrate with various solar panel systems makes them a flexible choice for diverse renewable energy applications. With Xantrex’s C-Series charge controllers, users can reap the benefits of solar energy while ensuring their battery systems remain healthy and efficient.
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