Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter

Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter 

Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter converts solar DC input into grid-compatible AC power for single phase rooftop systems. It uses a transformerless string design and supports two MPPT trackers, which allows two solar strings to operate independently. The product is positioned for grid-connected solar systems rather than battery based backup use. Its electrical profile and input range place it in the category of rooftop inverters used for homes, small offices, and similar single phase installations.  

Find Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter through SuFin Limited's verified supply chain network channel and a transparent procurement process. 

Quick Specifications  

Electrical Ratings and Input Output Parameters 

The electrical ratings define how the inverter handles panel input and grid output. This section matters because solar performance depends on the balance between DC input, AC output, and system voltage limits. 

Power and Voltage Profile 

• Rated output power: 5 kW 
• Rated output voltage: 220 to 240 V 
• Maximum PV input voltage: 550 V 
• Maximum PV input power: 16.5 kW 
• Startup voltage: 90 V 
• Maximum input current: 30 A 
• Maximum output current: 25 A 

The 5 kW rating sets the inverter’s output class, while the 16.5 kW PV input power gives flexibility in solar array sizing. The 90 V startup level shows the point at which the inverter begins operating, and the 98.2% maximum efficiency helps limit conversion loss during operation 

Protection Features and Safety Mechanisms 

Solar inverters need built in protection because they work directly with the grid, the panels, and changing outdoor conditions. Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter includes a wide safety set that covers electrical faults, current limits, and temperature control. 

Anti islanding Protection 

This feature stops the inverter from feeding power into the grid when the utility supply goes down. It helps prevent unsafe backfeed during an outage. The system disconnects quickly when grid conditions fall outside the allowed range. 

DC Reverse Polarity Protection 

This protection guards the inverter when the solar panel cables are connected the wrong way. It blocks damage caused by reversed positive and negative input lines. This reduces the risk of installation errors affecting the unit. 

Earth Fault Protection 

This feature detects unwanted current leakage to ground. It helps identify insulation problems or wiring faults in the system. The inverter can then respond before the fault grows into a larger issue. 

Leakage Current Protection 

This protection monitors the current that escapes from the designated circuit path. It supports safe operation by reacting to abnormal leakage conditions. That matters in solar systems where long cable runs and outdoor exposure increase risk. 

Over Current Protection 

This function limits the effect of excessive current flowing through the inverter. It helps protect the internal components from overload. The system uses it to manage sudden electrical stress during operation. 

Over Voltage Protection 

This feature acts when the input or output voltage rises beyond the safe limit. It helps protect the inverter and connected equipment from voltage spikes. That keeps the electrical system within its intended operating range. 

Over Temperature Protection 

This protection responds when the inverter becomes too hot. It reduces the chance of thermal damage by controlling operation under high temperature conditions. This matters in rooftop installations exposed to strong sunlight and heat. 

Type III SPD 

A Type III surge protection device helps protect the inverter from smaller transient voltage surges. It supports the unit during switching events and nearby electrical disturbances. This layer of protection adds resilience in grid connected solar installations. 

IEC 61727 Compliance 

This standard confirms that the inverter meets the requirements for grid connected photovoltaic systems. It covers how the unit interfaces with the utility supply. Compliance with this standard supports proper electrical behaviour in on grid use. 

Communication Interfaces and Monitoring Capabilities 

Monitoring features matter because solar systems often need status checks and performance reviews after installation. The inverter includes an LCD display and communication options that support local and remote visibility. 

Monitoring Features 

• LCD display for local readings 
• Wi-Fi for wireless monitoring 
• RS485 for wired system communication 
• GPRS for wider connectivity support 
• Remote configuration and upgrade support 

These features help with day-to-day supervision, fault checks, and performance tracking. The communication setup is useful in installations where the system owner or service team needs access without opening the inverter each time. 

Physical Design, Ingress Protection and Installation Aspects 

The physical build affects how the inverter fits into the installation area and how well it handles site conditions. The unit measures 350 x 347 x 137 mm, weighs 8.5 kg, and carries IP65 protection. The operating temperature range is -25°C to 60°C. 

Design Points 

• Compact enclosure for limited installation space 
• IP65 rating for dust and water resistance 
• Lightweight body at 8.5 kg 
• Transformerless construction 
• Temperature range suitable for Indian outdoor conditions 

The compact shape helps with wall installation and equipment room placement. IP65 protection matters for rooftop use, while the temperature range supports operation across hot and cooler site conditions. The transformerless design keeps the unit focused on efficient energy conversion with a lighter physical profile. 

Procurement Options on SuFin Limited 

Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter is available on SuFin Limited for direct ordering and quotation based procurement. 

For bulk ordering, check the Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter wholesale price details. 

Why Order Through SuFin Limited? 

• Online purchase for immediate requirements 
• Price visibility before placing an order 
• Bulk quotation support for project quantities 
• Wholesale pricing for larger requirements 
• Request based comparison for supply terms 
• Order placement through verified sellers 

For larger procurement needs, the platform can help assess Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter bulk rates and related supply terms without relying on separate enquiries.  

Bulk Quote Process 

• Request a quote to check the Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter online price. 
• Mention the quantity, delivery location, and timeline you require. 
• Receive the different quotations from the available sellers. 
• Review the offers and confirm the preferred option. 

Bulk ordering suits installations that need more than one unit, while direct ordering works for smaller requirements. The same process also supports those looking to buy Polycab PSIS-5K-SM2 5 kW Single Phase String On Grid Solar Inverter online or place a larger order through the procurement system. 

FAQs 

Q1. What type of installation suits this inverter? 

Q2. Why does the dual MPPT feature matter? 

Q3. Is the unit suitable for outdoor use? 

Q4. Can bulk procurement be arranged with SuFin Limited? 

Q5. Does this inverter operate during a power cut?