High Capacity UPS: Power Solutions for Large Homes and Offices

A high-capacity UPS is built for loads that a standard Home UPS is not sized for, such as air conditioners, water pumps, billing counters and a full set of office computers. Okaya's Hi-Capacity UPS range (Power Max) has four Advanced True Sine Wave models from 2500 VA to 6100 VA, each with a 36-month warranty. This guide explains where a high-capacity UPS fits, how the four models differ and how to size one for your load.

What is a high-capacity UPS and how is it different from a Home UPS?

A high-capacity UPS is a UPS rated for heavy and continuous loads, typically from 2500 VA upward, while a Home UPS is designed for lights, fans, TVs and similar household loads. Okaya's Home UPS range goes up to 2000 VA, and its Hi-Capacity range starts at 2500 VA for homes and businesses that need more capacity, for example for air conditioners.

Both ranges give clean, pure sine wave output and switch to battery power in about 10 milliseconds. The difference is the power available: Okaya's Hi-Capacity models deliver 2000 W to 4880 W, so they can carry motor loads and several appliances at the same time.

Where does a high-capacity UPS make sense?

A high-capacity UPS makes sense wherever the total running load, or the startup surge of a motor, is more than a Home UPS can carry. Okaya lists the following applications for the Hi-Capacity range:

Which Okaya Hi-Capacity UPS models are available?

Okaya offers four Hi-Capacity UPS models: 2500 VA, 3200 VA, 4000 VA and 6100 VA. The two smaller models run on a 24V battery system and the two larger ones on a 48V system. You can use the Hi-Capacity UPS comparison page to view all four side by side.

How do you choose the right high-capacity UPS?

1. Add up the watts of every appliance you want to run at the same time, then choose a model whose watt rating is higher than that total. Always compare watts with watts, because the VA figure and the watt figure on a UPS are not the same number.

2. List each appliance and its running watts from its label.

3. Add extra room for motors, pumps and compressors, which draw a higher current for a moment when they start.

4. Match the total to the watt rating in the table above, not the VA rating.

5. Okaya's load calculator can do this sum for you, and the guide on how to choose the right inverter VA for your home explains the VA and watt relationship in detail.

Can a high-capacity UPS run an air conditioner?

Yes, within the model's rating. Okaya states that a 1-ton inverter AC typically needs about 1500 to 2000 VA at startup, and that the 2500 VA model is suited to AC support depending on the tonnage and the other loads running with it. A standard Home UPS is generally not recommended for an air conditioner. For the full explanation, read whether an AC can run on an inverter.

For multiple air conditioners or other heavy commercial loads, the 6100 VA model is the highest-capacity option in the range. Actual suitability depends on the combined running wattage and startup/surge load of all connected appliances. Confirm the model with Okaya Customer Care before buying if your load is close to a rating.

What is the best inverter for a shop or an office?

The right choice is the model whose watt rating covers your shop or office load. A small shop with lights, fans, a billing computer, a printer and a deep freezer is a typical inverter for shop use case, while an office with several computers, a printer and a projector is a typical inverter for office use case.

Okaya's Hi-Capacity UPS is also listed for clinics with dental chairs and for petrol pump dispensers, where an interruption stops work completely. Add up the equipment first, then select the model.

What features help a high-capacity UPS handle heavy loads?

Okaya lists these features on the Hi-Capacity UPS pages:

1. Advanced True Sine Wave output, which provides smooth, grid-like power for computers, motors and sensitive electronics.

2. Super Intelli Charge with a Boost to Float mode, which Okaya says charges batteries 15% faster.

3. EI Core design, for lower power loss and less heat generation.

4. Peak current handling for motorized loads, with load handling above 100%.

5. Smart Phase Match Switching, with a changeover time of about 10 milliseconds.

6. Overload, low-battery, high-battery, input and output short circuit, over-temperature and fuse or MCB trip protection.

7. Audio and display indication for mains, battery, load and fault conditions.

8. The 6100 VA model also includes Active Battery Reverse Protection, which Okaya lists as exclusive to that model.

What batteries does a high-capacity UPS need?

A high-capacity UPS runs from inverter batteries connected as a 24V or 48V system, depending on the model, and the backup time depends on the battery capacity and the load you connect. A larger battery bank or a lighter load gives longer backup. Okaya's Certified Backup Hours page explains how backup hours are tested for its inverter batteries.

Ask an Okaya dealer for the right battery size for your model and expected backup time, because the number and type of batteries depend on your requirement.

What warranty and support come with Okaya Hi-Capacity UPS?

All four models carry a 36-month warranty, and registration is paperless. Okaya Hi-Capacity UPS models are BIS Registered, ISO Certified, and carry CE Mark. For installation help or model advice, call Okaya Care on +91 9818 909090 (also on WhatsApp) or write to care@okaya.in, or find a nearby outlet with the Okaya dealer locator. For a wider look at heavy loads, see why high-capacity inverters are essential for heavy-duty power needs.

Frequently Asked Questions

What is a high-capacity UPS?

It is a UPS rated for heavy loads, typically 2500 VA and above, used where a Home UPS is not enough, such as air conditioners, pumps, offices and shops.

What is the difference between VA and watts on a UPS?

VA is the apparent power and watts is the real power the UPS can deliver. Okaya's 2500 VA model, for example, is rated at 2000 W, so you should compare the total watts of your appliances with the watt rating.

Which Okaya Hi-Capacity UPS models are available?

There are four: 2500 VA (2000 W, 24V), 3200 VA (2560 W, 24V), 4000 VA (3200 W, 48V) and 6100 VA (4880 W, 48V). All have a 36-month warranty.

Can a Hi-Capacity UPS run an air conditioner?

Yes, if the AC and any other connected loads are within the model's rating. Okaya states that a 1-ton inverter AC needs about 1500 to 2000 VA at startup, and the 2500 VA model is suited to AC support depending on tonnage and load.

How many appliances can a 4000 VA UPS run?

It depends on their combined watts. The 4000 VA model is rated at 3200 W, so the total running load, plus allowance for motor startup, should stay within that figure.

Which UPS is suitable for a small office?

Add up the watts of the computers, printer, router and lights, then choose a model whose watt rating covers the total. Okaya lists computers, printers, projectors and scanners among the loads its Hi-Capacity UPS supports.

Does an Okaya Hi-Capacity UPS give pure sine wave output?

Yes. All four models use Advanced True Sine Wave technology.

How long does a Hi-Capacity UPS take to switch to battery?

Okaya lists Smart Phase Match Switching with a changeover time of about 10 milliseconds.

What battery voltage do the Hi-Capacity UPS models use?

The 2500 VA and 3200 VA models use a 24V battery system, and the 4000 VA and 6100 VA models use a 48V system.

What warranty and service does Okaya provide on Hi-Capacity UPS?

A 36-month warranty with paperless registration. Support is available on +91 9818 909090 (also on WhatsApp) or at care@okaya.in.

To see current options, check the 2kw inverter price for the 2500 VA model or the 4 kva inverter price for the 4000 VA model on the Okaya shop.