What is the difference between PWM and MPPT solar PCU?

PWM PCUs are simpler and cost-effective, suitable for small installations up to 2–3KVA. They operate at battery voltage and achieve 70–80% charging efficiency. MPPT PCUs are more advanced, achieve 95%+ efficiency and generate 20–30% more energy from the same panels, making them recommended for larger systems or when panel wattage is limited.

Is the PWM PCU compatible with lithium batteries?

Yes. The Electrent Solar PWM PCU is compatible with LiFePO4 lithium batteries as well as conventional tubular and SMF lead-acid batteries, providing a flexible upgrade path.

What sizes of PWM PCU are available?

The Electrent Solar PWM PCU range includes four models: 1100/12V (900VA), 1400/12V (1100VA), 1750/12V (1500VA), and 2500/24V (2250VA). All models deliver pure sine wave output.

Is the PWM PCU BIS certified?

Yes, Electrent Solar PWM PCUs are BIS (Bureau of Indian Standards) certified and comply with applicable IS standards for safety and performance.

Electrent Solar PWM PCU — 900VA to 2250VA

Name: Electrent Solar PWM PCU
Brand: Electrent Energy

Compact and affordable Solar Power Conditioning Units with Smart PWM charge control technology. Pure sine wave output, compatibility with LiFePO4 lithium and tubular lead-acid batteries, and three intelligent operating modes. The ideal solar solution for homes and small offices.

Call +91 80080 06503

What is a PWM Solar PCU?

A Solar PCU (Power Conditioning Unit) is an all-in-one unit combining a solar charge controller, pure sine wave inverter, and mains charger. The PWM (Pulse Width Modulation) variant uses a proven, reliable charging method that regulates the voltage flowing into the battery from solar panels. It is the most cost-effective solar inverter solution for residential and light commercial applications up to 2250VA.

Electrent's Solar PWM PCU range — from 900VA/12V to 2250VA/24V — delivers all the benefits of solar power with the reliability of a UPS, in a compact wall-mountable form factor.

PWM PCU Model Range & Specifications

Model	Battery Voltage	Output VA	Output Watts	Solar Panel VOC	Solar Priority
Solar PWM 1100	12V	900 VA	720 W	Up to 24V	Yes
Solar PWM 1400	12V	1100 VA	880 W	Up to 24V	Yes
Solar PWM 1750	12V	1500 VA	1200 W	Up to 24V	Yes
Solar PWM 2500	24V	2250 VA	1800 W	Up to 48V	Yes

Common Technical Specifications

Parameter	Specification
Output Waveform	Pure Sine Wave
Output Voltage	220V ± 1%
Output Frequency	50 Hz ± 0.2 Hz
Charge Controller Type	Smart PWM
Operating Modes	Solar Mode / Hybrid Mode / Normal (UPS) Mode
Mains Input (UPS Mode)	170–260V AC
Mains Input (Wide Mode)	100–280V AC
Battery Type	LiFePO4 Lithium / Tubular / SMF compatible
Display	Dual LCD + LED indicators
Cooling	Temperature-controlled exhaust fan
Operating Temperature	Up to 55°C
Certification	BIS Certified
Warranty	36 months replacement warranty

Three Intelligent Operating Modes

☀

Solar Mode

Solar panels power the load directly. Surplus energy charges the battery. Grid is not engaged as long as solar is sufficient. Maximum electricity savings.

⚡

Hybrid Mode

Solar and grid work together. Solar has priority; grid supplements when solar power is insufficient or the battery is low. Optimal balance of savings and reliability.

🔌

Normal / UPS Mode

Operates as a conventional UPS using grid power. Solar charges the battery when available. Near-zero switchover time protects all connected devices.

Key Features

💡

Pure Sine Wave Output

Clean 220V pure sine wave powers sensitive electronics, motors, fans, and LED lighting without harmonic distortion or equipment damage.

🔋

Lithium & Tubular Compatible

Supports LiFePO4 lithium batteries for longer lifespan and higher efficiency, as well as conventional tubular and SMF lead-acid batteries.

🔬

Dual LCD + LED Display

Real-time monitoring of solar input, battery state of charge, load percentage, and grid status via dual LCD and LED indicators.

🌡

High-Temp Operation

Operates reliably up to 55°C ambient temperature with a temperature-controlled exhaust fan — ideal for Indian climatic conditions.

🔥

Smart PWM Charging

Multi-stage PWM charging (bulk, absorption, float) maximises battery life. Trickle charging prevents deep discharge and sulphation in lead-acid batteries.

⚡

Near-Zero Switchover

Millisecond-level automatic switching between solar, battery, and grid — computers and servers experience no interruption during transitions.

📄

BIS Certified

Complies with BIS (Bureau of Indian Standards) safety and performance standards. Made by Electrent Energy Private Limited, Bhiwani, Haryana.

📈

Cost-Effective Solar Entry

The most affordable way to add solar power to your home or office. Lower initial investment than MPPT systems while delivering genuine electricity savings.

PWM vs MPPT — Which Should You Choose?

Parameter	Solar PWM PCU	Solar MPPT PCU
Charging Efficiency	70–80%	≥ 95%
Solar Harvest	Standard	20–30% more
Panel Voltage Flexibility	Must match battery voltage	Higher voltage panels supported
Capacity Range	900VA – 2250VA	1100VA – 10KVA
Cost	Lower	Higher
Best For	Small homes, budget installations	Offices, farms, commercial
Shading Performance	Standard	Better (adaptive tracking)
Output Waveform	Pure Sine Wave	Pure Sine Wave

Typical Applications

Application	Recommended Model	Notes
Small Home (fans, lights, TV)	Solar PWM 1100 / 1400	12V system, 1–2 solar panels
Medium Home (AC excluded)	Solar PWM 1750	12V system, 2–3 solar panels
Small Shop / Office	Solar PWM 2500	24V system, 3–4 solar panels
Village / Rural Electrification	Solar PWM 1100 / 1400	Off-grid with tubular batteries

Why Choose Electrent Solar PWM PCU?

Affordable solar entry: The most cost-effective way to add solar power to any home or small office.
Reliable PWM technology: Proven, robust charge control with multi-stage battery protection.
Pure sine wave output: Safe for all sensitive electronics and motor loads.
Lithium compatible: Future-proof — upgrade to LiFePO4 batteries when ready.
BIS certified: Meets Indian safety and performance standards.
36-month warranty: Industry-leading replacement guarantee.
Nishant Power Solutions: Pan-India service, technical consultation, and AMC support.

Frequently Asked Questions

What is a PWM Solar PCU?

A Solar PWM PCU combines a PWM solar charge controller, pure sine wave inverter, and mains charger in one unit. It provides solar-priority power with battery backup and grid fallback. PWM technology is reliable, affordable and well-suited for smaller solar systems up to 2250VA.

What is the difference between PWM and MPPT?

PWM PCUs achieve 70–80% charging efficiency and require panels matched to battery voltage. MPPT PCUs achieve 95%+ efficiency, generate 20–30% more solar energy from the same panels, and support higher-voltage panels. MPPT is recommended for larger systems; PWM is the cost-effective choice for small residential installations.

Can the PWM PCU work without solar panels?

Yes. In Normal/UPS mode it operates as a conventional UPS on grid power, with solar panels able to be added later. All three modes (Solar, Hybrid, Normal) are available at any time depending on what inputs are connected.

Is it compatible with lithium batteries?

Yes. The Electrent Solar PWM PCU supports LiFePO4 lithium batteries as well as tubular and SMF lead-acid batteries, making it compatible with the full range of battery technologies.

What warranty does the Solar PWM PCU carry?

The Electrent Solar PWM PCU carries a 36-month (3-year) replacement warranty. Battery warranty is separate and depends on the battery type selected.

When should I choose PWM over MPPT?

Choose the PWM PCU when your load is below 2KVA, your solar panel voltage closely matches your battery voltage, you have a budget constraint, or you're installing a basic residential system. Choose MPPT for loads above 2KVA, higher-voltage panels, partial shading, or when maximising solar energy harvest is the priority.

How many solar panels can I connect?

For 12V PWM models (1100, 1400, 1750), connect panels with a combined VOC up to 24V — typically 1 or 2 x 24V panels, or panels configured to 12V nominal. For the 24V model (2500), panels up to 48V VOC — typically 2 x 24V panels. Our team will help size the panel array to your load and battery requirements.

Is the Electrent PWM PCU BIS certified?

Yes, the Electrent Solar PWM PCU is BIS (Bureau of Indian Standards) certified, ensuring compliance with Indian safety and performance standards.

Start Saving with Solar Today

Our solar experts will assess your load and recommend the right Electrent Solar PWM PCU — the affordable, reliable way to reduce your electricity bills.

Call +91 80080 06503