AC Cabling, AC and DC Wiring Separation | Xantrex Technology PS2.5

Section 4: Inverter/Charger Installation

AC Cabling

AC wiring must be sized to match the current rating of the AC breakers you provide on the input and output AC circuits in accordance with the electrical codes or regulations applicable to your installation. The input and output circuits to and from the inverter/charger must be protected with a maximum 30-amp circuit breaker. The output branch circuit breaker size is determined by the load that will be placed on the circuit. Determine the output load, then select the appropriate circuit breaker size, the appropriate wire size and type. The following table is based on the U.S. National Electrical Code and the Canadian Electrical Code. There may be other codes and regulations applicable to your installation.

Recommended Wire Size vs Breaker Rating

Breaker Size	10A	15A	20A	30A

Min Wire Size	14AWG	14AWG	12AWG	10AWG

AC and DC Wiring Separation

Do not mix AC and DC wiring in the same conduit or panel. Where DC wiring must cross AC or vice- versa, make the wires at the crossing point 90θ to one another. Consult code for details of DC and AC wiring in vicinity to one another.

AC Output Neutral-to-Ground Bonding

The neutral (common) conductor of the AC output circuit of the Prosine inverter/charger is automatically connected (bonded) to the input safety ground during inverter operation. This conforms to National Electrical Code requirements that separately derived AC sources (such as inverter and generators) have their neutral conductors tied to ground in the same way that the neutral conductor from the utility is tied to ground at the AC breaker panel. When AC utility power is present and the Prosine inverter/charger is in charger mode, this connection (neutral of the Prosine inverter/charger’s AC output to input safety ground) is not present so that the utility neutral is only connected to ground in one place, at your AC input breaker panel, as required. Your AC load distribution panel must not bond the neutral to ground. Many sub-panels have a bonding screw designed to allow the installer to bond or un-bond the panel’s neutral.

AC Disconnect and Overload Protection

AC Input: The circuit breaker or fuse used to protect the inverter/charger must be rated max. 30A, and must be approved for use on 120VAC branch circuits. The wire size used between the breaker and the Prosine inverter/charger input must be sized to match the circuit breaker, in accordance with the electrical codes or regulations applicable to your installation. The "AC Service Rating" setting of the Prosine inverter/charger must also be set to match the size of the breaker provided.

AC Output: The circuit breaker or fuse used must be rated max. 30-amp, and must be approved for use on 120V AC branch circuits. The wire size used between the Prosine inverter/charger output and the breaker, and between the breaker and your loads, must be sized to match the circuit breaker’s rating, in accordance with the electrical codes or regulations applicable to your installation.

Disconnect Devices: Since circuit breakers can be turned off, they will also meet the requirement for a disconnect device. As an alternate, use separate fuses and disconnect switches. Note that the required disconnect device is not intended for disconnection under load, it is only meant to be a way to isolate the Prosine inverter/charger from the input and output circuits.

Prosine Installation & Operation Guide

PS3.0, PS2.5 specifications

Xantrex Technology has made significant strides in the power electronics sector with the introduction of their PS2.5 and PS3.0 inverter models. These inverters are designed primarily for solar energy applications, offering reliable and efficient power conversion for residential and commercial solar installations. The PS series stands out in the market due to its advanced features, innovative technologies, and user-friendly characteristics.

One of the main features of the Xantrex PS2.5 and PS3.0 inverters is their high efficiency rating, typically above 97%. This means that a minimal amount of energy is lost during conversion, allowing users to maximize their solar energy utilization. Additionally, these inverters come with a wide input voltage range, making them versatile and capable of handling various solar panel configurations.

Both models are equipped with advanced MPPT (Maximum Power Point Tracking) technology. This feature optimizes the energy output from solar panels by constantly adjusting the operating point to ensure maximum power is extracted, even in variable weather conditions or partial shading. This capability significantly enhances the overall energy harvest from solar systems.

Another notable characteristic is their compact and lightweight design, which facilitates easy installation and integration into existing systems. The inverters are also designed with robust thermal management solutions, ensuring they operate effectively even in high-temperature environments. This durability extends their lifespan and increases reliability, critical factors for any solar installation.

Xantrex has also prioritized user experience with the PS2.5 and PS3.0 models by providing a built-in monitoring system. Users can access real-time data on energy production, performance metrics, and system status through a user-friendly interface. This connectivity allows for quick troubleshooting and maintenance, thus enhancing the overall efficiency of solar energy systems.

Safety is paramount in the design of these inverters. They meet stringent international safety standards and come equipped with comprehensive protection features, including over-voltage, under-voltage, and short-circuit protection. This ensures the inverter operates safely, protecting both the user and the connected solar array.

In summary, Xantrex Technology's PS2.5 and PS3.0 inverters are engineered with cutting-edge features and technologies that cater to the evolving needs of solar energy users. Their efficiency, adaptability, and focus on safety make them an excellent choice for those looking to invest in renewable energy solutions. As the demand for sustainable energy continues to rise, Xantrex is poised to play a significant role in the market with these innovative inverter solutions.