PIE1.2K-12L hybrid solar inverter 1200W 12V pure sine wave for home

Prostar PIE1.2K-12L is off-grid hybrid solar inverter 1200W 12V designed for residential backup power and small solar energy systems. It integrates an 800W MPPT solar charge controller, supports lead-acid and lithium batteries, and delivers pure sine wave AC output. With up to 100A combined charging current, generator compatibility, and a compact wall-mounted design, it provides flexible power management for homes and remote applications.

This inverter 1200w combines solar charging, AC battery charging, battery management, and DC-to-AC power conversion in one unit. It works with solar panels, utility power, generators, and 12V battery systems.

Unlike grid-tied solar inverters, the PIE1.2K-12L inverer 1200W is designed for off-grid operation. It does not feed electricity back into the utility grid.

The combination of a 12V battery platform and integrated MPPT charging makes this inverter suitable for small-scale solar energy applications.

Integrated 800W MPPT Solar Charge Controller

Wide-Range MPPT Solar Charging

The PIE1.2K-12L incorporates an MPPT solar charge controller with a maximum PV input power of 800W.

Its MPPT operating voltage ranges from 17VDC to 115VDC. The maximum PV open-circuit voltage is 115VDC.

This allows the inverter 1200w to work with different small solar panel configurations.

Better Solar Energy Utilization

MPPT technology continuously adjusts the operating point of the solar array to extract available PV power under changing sunlight conditions.

For residential users, this provides several practical benefits:

• Improves solar energy utilization.

• Supports direct solar battery charging.

• Reduces dependence on utility electricity.

• Allows flexible solar panel configuration within the specified PV limits.

Design consideration: The total PV array power must not exceed 800W. The PV open-circuit voltage must remain below 115VDC, including under low-temperature conditions when module Voc increases.

Up to 100A Hybrid Charging for Faster Battery Replenishment

Combined PV and AC Charging

The PIE1.2K-12L hybrid solar inverter 1200W supports both solar charging and AC charging.

The maximum charging current depends on the charging source and configuration.

The inverter 1200w can combine available solar and AC charging power to replenish the battery more quickly.

Flexible Battery Charging

This charging architecture is useful when solar energy alone cannot meet the household’s energy requirements.

For example:

• During sunny periods, solar panels supply energy for battery charging.

• During cloudy weather, utility or generator power can supplement solar charging.

• During periods of high energy demand, combined charging helps reduce battery recovery time.

The actual charging current depends on available input power, battery settings, operating conditions, and charging limits.

Selectable Charging Algorithms

The inverter supports multiple charging algorithms:

• Two-stage charging: CC/Float.

• Three-stage charging: CC/CV/Float.

• PV charging mode.

These selectable configurations allow system integrators to adjust charging behavior according to battery requirements.

Compatible with Lead-Acid and Lithium Batteries

Flexible 12V Battery Configuration

The PIE1.2K-12L supports three battery configuration options:

1. Lead-acid batteries.

2. Lithium-ion batteries.

3. User-defined battery settings.

Its nominal battery voltage is 12VDC.

Adaptable to Different Energy Storage Requirements

Battery compatibility gives distributors and solar installers more flexibility when designing small off-grid systems.

Users can select an appropriate 12V battery according to:

• Required backup duration.

• Daily electricity consumption.

• Battery budget.

• Expected charge and discharge cycles.

• Battery manufacturer’s charging recommendations.

For lithium battery applications, the charging voltage and current must be configured according to the battery manufacturer’s specifications.

The inverter’s stated lithium compatibility does not by itself establish compatibility with every battery BMS. Confirm communication and protection requirements before installation.

Pure Sine Wave Output

Clean and Stable AC Power

The PIE1.2K-12L delivers pure sine wave AC output with a rated capacity of 1200VA/1200W.

It supports multiple nominal output voltages:

• 208VAC.

• 220VAC.

• 230VAC.

• 240VAC.

The output voltage regulation is ±5%.

Its output THD is ≤3% under linear loads.

Suitable for Residential Electrical Loads

Pure sine wave output provides an AC waveform similar to utility power.

It is suitable for many common household electrical devices, including:

• LED lighting.

• Desktop computers.

• Routers and communication equipment.

• Televisions.

• Fans.

• Small household appliances.

Actual compatibility depends on appliance rated power, startup current, and operating characteristics.

2400VA Surge Capacity

The inverter supports surge power up to 2400VA.

Its overload capacity is specified as follows:

This short-term overload capability helps accommodate temporary load increases.

However, 2400VA surge capacity should not be interpreted as continuous 2400W output. Motor-driven appliances must be evaluated according to their startup current and power factor.

Fast Transfer Time for Home Backup Applications

 Transfer Time 10ms–20ms

When utility power becomes unavailable, the inverter switches the connected loads to battery operation.

The specified transfer times are:

Reduced Power Interruption

The short transfer time helps maintain power to connected equipment during utility interruptions.

This is particularly useful for:

• Home office equipment.

• Internet routers.

• Desktop computers.

• Household lighting.

• Small electronic devices.

The inverter 1200w also supports grid-synchronized frequency operation and battery-mode output at 50Hz or 60Hz ±0.1%.

This provides flexibility for different regional electrical systems.

Important: Transfer time is not equivalent to zero transfer time. Equipment requiring uninterrupted power without any switching interval should be evaluated separately.

Wide AC Input Voltage and Generator Compatibility

Flexible Grid and Generator Input

The PIE1.2K-12L accepts a wide range of AC input voltages.

The inverter supports generator input, making it suitable for installations where utility power is unstable or unavailable.

More Flexible Power Supply Options

Users can configure the system around different power sources:

• Solar panels as the primary charging source.

• Utility electricity as supplementary power.

• Generators as backup charging sources.

• Batteries for stored energy and backup operation.

The wide AC input range is particularly useful in areas with voltage fluctuations.

The input power factor of ≥0.99 also supports efficient AC input utilization.

LCD Display and Multiple Communication Interfaces

Local Monitoring and Optional Remote Access

The PIE1.2K-12L solar inverter 1200W includes a 2.7-inch LCD and LED indicators.

Its standard communication interfaces include USB and RS485.

Additional monitoring options are available.

Easier System Monitoring and Management

The LCD provides local access to operating information.

USB and RS485 interfaces support communication with compatible monitoring equipment.

Optional Wi-Fi, GPRS, and Ethernet modules provide additional remote monitoring possibilities.

For solar installers and distributors, these interfaces offer flexibility when integrating the inverter into different residential energy management systems.

Technical Specification

The following table summarizes the main specifications of the PIE1.2K-12L.

Typical Applications

The PIE1.2K-12L is designed for small off-grid and backup power applications.

Its 1200W rated output and 800W maximum PV input make it suitable for systems with relatively modest electricity consumption.

Residential Solar Backup

Provides backup power for essential household electrical equipment during grid interruptions.

Typical loads include lighting, routers, televisions, and computers.

Small Off-Grid Solar Systems

Suitable for small homes, cabins, and remote buildings where utility electricity is unavailable or unreliable.

Generator-Assisted Solar Systems

Combines solar charging with generator input to provide additional charging flexibility during periods of insufficient sunlight.

Remote Monitoring and Communication Equipment

Can supply power to small monitoring devices and communication equipment when the connected load remains within the inverter’s rated capacity.

Frequently Asked Questions (FAQ)

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