# Uninterruptible Power Supply FSP ST 850 0.85 kVA 510 W 4 AC outlets

**URL:** https://aio.lv/en/product--fsp-ppf5100100--10801948
**Data updated:** 2026-09-04 04:20 (EEST)
**Category:** UPS
**Manufacturer:** FSP
**Manufacturer code:** PPF5100100
**EAN:** 4713224528941
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 137.49 €
**Prices and availability valid until:** 2026-10-12 23:59
**Price without VAT (21%):** 113.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fsp-ppf5100100--10801948

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.09.2026 | free |
| Pickup points | 01.10.2026 | 1.99 EUR |
| Courier delivery to door | 01.10.2026 | 6.81 EUR |

## Summary description

The FSP ST 850 is a Line-Interactive UPS with a capacity of 0.85 kVA and an output power of 510 W. It features 4 Type F AC outlets and a USB Type-B port. The 9 Ah battery operates at 12 V and has a recharge time of 6.8 hours, ensuring reliable power backup for your devices.

## Long description

The FSP ST 850 is a reliable line-interactive uninterruptible power supply designed to protect your electronic equipment from power disturbances. With an output power capacity of 0.85 kVA and 510 W of active power, this tower-format device ensures a stable power supply for connected devices. It features four Type F AC outlets, a USB Type-B port, and a built-in 9 Ah battery operating at 12 V with a recharge time of 6.8 hours. Equipped with automatic voltage regulation, it helps reduce the impact of unstable electrical input, safeguarding your hardware against unexpected outages and voltage fluctuations.
Advantages
The FSP ST 850 offers dependable backup power during electrical outages, ensuring that connected devices remain operational or can be shut down safely. Its line-interactive topology, combined with automatic voltage regulation, helps smooth out fluctuations from the mains supply, providing a stable operating environment. The tower form factor allows for straightforward placement in home or office environments. Furthermore, the unit automatically recharges its battery once mains power is restored, ensuring it is ready for the next power event without manual intervention.
Suitable for
Home office computers and peripheral equipment
Small networking devices and routers
Desktop workstations and personal electronics
Point of sale systems and basic office hardware
When it may not be suitable
This uninterruptible power supply may not be suitable for high-power enterprise servers, heavy-duty industrial machinery, or high-draw gaming systems that exceed its 510 W output capacity. Additionally, devices requiring a continuous pure sine wave under all operating conditions may need a different topology if strict medical or scientific standards apply.
Key specifications
UPS topology: Line-Interactive
Output power capacity: 0.85 kVA
Output power: 510 W
Form factor: Tower
Waveform: Sine
Input operation voltage range: 81 V to 270 V
Input frequency: 50/60 Hz
AC outlets: 4 Type F outlets
Battery specifications: 9 Ah, 12 V
Battery recharge time: 6.8 hours
Product colour: Black
How to use
Place the tower unit on a flat, stable surface in a well-ventilated area away from direct sunlight and moisture. Connect the power cord of the UPS to a standard grounded wall outlet. Plug your essential electronic devices into the designated Type F AC outlets on the rear panel. Connect the USB Type-B port to a compatible computer if monitoring software is utilized. Turn on the power switch to activate the unit and begin normal operation. The internal battery will charge automatically when connected to mains power.
What to consider before purchase
Verify that the total power consumption of your connected devices does not exceed 510 W
Check the available physical space to ensure the tower form factor fits comfortably in your setup
Confirm that your equipment plugs are compatible with the four Type F AC outlets
Take into account the 6.8-hour recharge time following a complete battery discharge
Usage recommendations
Regularly test the power backup functionality by simulating a short outage to ensure optimal battery performance. Keep the ventilation openings clear of obstructions and operate the unit within recommended indoor temperature and humidity ranges to prolong battery life.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 7.6 kg |
| Height | 280 mm |
| Depth | 288 mm |
| Width | 99 mm |

### Packaging content

| Feature | Value |
|---|---|
| Batteries included | Yes |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 0 - 90 |
| Operating temperature (T-T) | 0 - 40 |

### Design

| Feature | Value |
|---|---|
| Display type | LCD |
| Control type | Buttons |
| Built-in fan | Yes |
| Cooling type | Active |
| Product colour | Black |
| Form factor | Tower |

### Battery

| Feature | Value |
|---|---|
| Hot-swap battery | Yes |
| Battery recharge time | 6.8 h |
| Number of battery cells | 1 |
| Battery voltage | 12 V |
| Battery capacity | 9 Ah |

### Ports & interfaces

| Feature | Value |
|---|---|
| Ethernet LAN (RJ-45) ports | 2 |
| USB 2.0 ports quantity | 1 |
| USB port type | USB Type-B |
| USB port | Yes |
| AC outlets quantity | 4 AC outlet(s) |
| AC outlet types | Type F |

### Features

| Feature | Value |
|---|---|
| Power source type | AC |
| Audible alarm modes | Alarm when on battery, Fault, Low battery alarm, Overload alarm |
| Audible alarm(s) | Yes |
| Power protection features | Battery discharge, Overcharge, Overload |
| Noise level | 40 dB |
| Output voltage regulation | 5 |
| Output frequency | 50/60 |
| Output operation voltage (max) | 240 V |
| Output operation voltage (min) | 110 V |
| Input frequency | 50/60 |
| Input operation voltage (max) | 270 V |
| Input operation voltage (min) | 81 V |
| Waveform | Sine |
| Output power | 510 W |
| Output power capacity | 0.85 kVA |
| UPS topology | Line-Interactive |

## FAQ

### How much does the Uninterruptible Power Supply FSP ST 850 cost, and is it available for purchase?

The price is 137.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 200 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 28.09.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Uninterruptible Power Supply FSP ST 850 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All FSP products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FSP service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: form factor, input frequency, input operation voltage (max), input operation voltage (min), waveform, output power, output power capacity, ups topology, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/10801948/60105931_large.webp