Installation

Long-distance wire runs

If there is a significant distance between the PV array and the controller and/or the controller and the battery, larger wires can be used to reduce the voltage drop and improve performance. Refer to Table 2-4.

To use a larger size wire, use a splicer block (terminal block) intended for this purpose. This allows the larger cable size from the batteries to be “spliced” to the smaller wire size connected to the controller. Split-bolt kerneys can also be used for wire splices.

Follow manufactures recommendations for torque and mounting (if required). Splicer blocks and split-bolt kerneys are available from renewable energy suppliers.

Maximum One-way Distance and Wire Size

Important: NEC Article 690 and local electrical codes should be consulted for wire sizing and any additional installation requirements.

•For a C60 use a 60 amp, 100% Continuous Duty breaker and #6 AWG, 90 °C wire.

•Larger wire sizes may be used to improve performance, but are NOT approved by UL to be installed in the controller. Use a splicer block as previously described.

Refer to Table 2-4and find your maximum current in the left column, and the one-way distance from your power source (feet/meters) to the C-Series controller (or the distance from the C-Series controller to your load) on the same line, then read the wire size required at the top of the column.

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Xantrex Technology C60, C35, C40 owner manual Long-distance wire runs, Maximum One-way Distance and Wire Size
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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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