# Uninterruptible Power Supply UPS FSP ST 850 0.85 kVA 510 W 4 Type F AC outlets, USB-B, 9 Ah battery, tower

**URL:** https://aio.lv/en/product--fspfortron-ppf5100100--10802561
**Data updated:** 2026-03-01 12:07 (EET)
**Category:** UPS
**Manufacturer:** fsp/fortron
**Manufacturer code:** PPF5100100
**EAN:** 4713224528941
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 156.45 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 129.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fspfortron-ppf5100100--10802561

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Tuesday | free |
| Pickup points | 10.07.2026 | 1.89 EUR |
| Courier delivery to door | 10.07.2026 | 7.30 EUR |

## Summary description

The FSP ST 850 is a line‑interactive UPS delivering 0.85 kVA (510 W) of backup power in a tower chassis. It provides four Type F AC outlets, a USB Type‑B communication port and a 12 V 9 Ah internal battery with ~6.8 h recharge time. Active cooling protects components during backup. Suitable for desktop PCs, network devices and home office equipment to ensure safe shutdown and short‑term power continuity.

## Long description

The FSP ST 850 is a line-interactive uninterruptible power supply designed to provide short-term backup power and surge protection for desktop PCs, networking devices and peripheral equipment. With a rated output of 0.85 kVA (510 W), four Type F AC outlets and an internal 12 V 9 Ah battery, this tower UPS supplies conditioned power during brief outages and voltage fluctuations. A USB Type-B communication port enables connection to a host system for monitoring, while active cooling helps maintain stable operation. Recharge time for the internal battery is approximately 6.8 hours.
Advantages
The UPS offers automatic voltage regulation through its line-interactive design, protecting connected equipment from sags and spikes without switching to battery for minor variations. Four grounded AC outlets support multiple devices simultaneously, and the compact tower form factor fits typical office or home environments. Built-in active cooling reduces thermal stress during extended use, and the USB Type-B port allows for software-based status monitoring and safe shutdown when integrated with compatible systems.
Suitable for
Desktop computers and workstations
Home and small office network equipment (routers, switches, modems)
External storage devices and printers requiring short backup
Point-of-sale terminals and small business systems
Key specifications
Output capacity: 0.85 kVA / 510 W
AC outlets: 4 Type F grounded outlets
Battery: internal 12 V, 9 Ah
Communication: USB Type-B port for monitoring
Form factor: tower enclosure, black finish
Cooling: active cooling fan
Recharge time: approximately 6.8 hours
Weight: 7.6 kg
How to use
Place the UPS on a stable, flat surface with adequate ventilation and connect critical devices to the AC outlets. Plug the UPS into a grounded mains socket and allow the internal battery to charge fully before relying on battery backup. Connect the USB Type-B port to a computer if monitoring or automated shutdown features are required; install any manufacturer-provided software to configure notifications and safe-shutdown thresholds. Regularly test the UPS by simulating a power interruption to verify that connected equipment receives backup power and that monitoring functions operate as expected.
Usage recommendations
For reliable short-term backup, avoid connecting high inrush or continuous high-load devices that exceed the 510 W output rating. Keep the UPS in a cool, dust-free environment and allow at least several hours for the battery to recharge after a full discharge. Follow the manufacturer's guidelines for periodic battery replacement to ensure continued backup capacity.

## Specifications

### Ports & interfaces

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

### Battery

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

### Design

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

### Weight & dimensions

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

### Operational conditions

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

### Packaging content

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

### Features

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

## FAQ

### How much does the UPS FSP ST 850 0.85 kVA 510 W cost, and is it available for purchase?

The price is 156.45 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 Tuesday 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 UPS FSP ST 850 0.85 kVA 510 W 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/fortron 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/fortron 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: ac outlets quantity, usb 2.0 ports quantity, weight, output power capacity, output power, 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.

### Where can I download the instructions for UPS FSP ST 850 0.85 kVA 510 W?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10802561/65773228_large.webp