Riello Sentinel Dual UPS 4 kVA

Name: Riello Sentinel Dual UPS 4 SDU-4000
Brand: Riello
SKU: 11472354
Price: 1610.99 EUR
Availability: InStock

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Riello Sentinel Dual UPS 4 kVA 3600 W 3 AC outlets

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Offer for legal entity, cashless payment. Why is an item available only for a legal entity?
This is due to long delivery times and limited product warranties.

Short description

The Riello Sentinel Dual is a double-conversion online UPS with a capacity of 4 kVA and 3600 W. It features 3 IEC 320 AC outlets and a USB Type-A port. The sealed lead acid battery has a voltage of 96 V and a recharge time of 4 hours. With a rackmount/tower form factor and a 3U rack capacity, it is suitable for various applications, ensuring reliable power supply and protection for critical equipment.

Available for order: 1 pcs.

Warranty: 2 Years

SKU: 11472354

Manufacturer: Riello

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Deliver the order:

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to the Customer Service Center at Kengaraga 2b, Riga

09.07.2026 {{selectedOffer.officeDeliveryString}}

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

09.07.2026 {{selectedOffer.officeDeliveryString}}

free

Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

14.07.2026 {{selectedOffer.courierDeliveryString}}

From 53.99 € (Weight: 38.00 kg)

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Payment Methods:

Bank transfer, Leasing for legal entities

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Leasing for legal entities: from 56.06 euros per month

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Product information

Description

The Riello Sentinel Dual UPS 4 kVA 3600 W 3 AC outlets is an online double-conversion uninterruptible power supply designed to deliver continuous, regulated power for critical equipment. With a true on-line topology it provides consistent voltage and frequency regulation, isolating connected devices from input disturbances. The unit offers three IEC 320 AC outlets and a USB Type-A port for basic communications, a sealed lead acid battery system at 96 V and a full recharge time of approximately 4 hours. Its rackmount/tower form factor and 3U height make it suitable for server racks, network closets and compact equipment rooms.

Advantages

The double-conversion design ensures clean, stable output power and zero transfer time to battery during mains disturbances. The 4 kVA / 3600 W power rating supports a broad range of small to medium loads while the sealed 96 V battery provides reliable runtime and reduced maintenance needs compared with flooded batteries. The combined rackmount/tower chassis gives installation flexibility and the compact 3U size saves rack space. Integrated USB Type-A connectivity allows for basic monitoring and shutdown integration with compatible systems.

Suitable for

Small servers and rack-mounted network equipment
Storage arrays, NAS devices and backup controllers
VoIP PBX, network switches and firewalls
Point-of-sale systems and critical workstations
Edge computing nodes and remote site cabinets

Key specifications

Topology: Online double-conversion
Capacity: 4 kVA / 3600 W
Output outlets: 3 × IEC 320 AC
Communication port: USB Type-A
Battery type: Sealed lead acid (SLA), 96 V
Battery recharge time: Approximately 4 hours
Form factor: Rackmount / Tower convertible
Rack height: 3U

How to use

Install the UPS in a well-ventilated rack or on a stable surface in tower orientation following the manufacturer's mechanical instructions. Connect mains input to a properly rated electrical circuit and plug critical equipment into the IEC outlets. Allow the battery to reach a full recharge after initial installation before relying on the unit for extended runtime. Use the USB Type-A port to connect to monitoring software or a management device for orderly shutdown and event logging when supported. Perform regular visual inspections of connections and battery condition according to usage hours and local safety standards.

Usage recommendations

Locate the UPS in a temperature-controlled environment, avoid excessive dust and humidity, and ensure a minimum clearance around ventilation openings. Verify load levels to keep the continuous power draw within the 3600 W rating, and schedule periodic battery tests and replacements based on measured runtime and battery health to maintain reliable backup performance.

Specifications

AC outlets quantity:: 3 AC outlet(s)
USB 2.0 ports quantity:: 1
Weight:: 38 kg
Output power:: 3600 W
Output power capacity:: 4 kVA
Product colour:: Black

All features

Ports & interfaces

AC outlets quantity:: 3 AC outlet(s)
USB 2.0 ports quantity:: 1
Serial interface type:: RS-232
Serial ports quantity:: 1
RS-232 ports:: 1
AC outlet types:: IEC 320
Serial interface:: Yes
Emergency Power Off (EPO) connector:: Yes
USB port:: Yes
USB port type:: USB Type-A

Battery

Battery technology:: Sealed Lead Acid (VRLA)
Battery recharge time:: 4 h
Battery weight:: 28 g
Battery voltage:: 96 V

Design

Product colour:: Black
Form factor:: Rackmount/Tower
Rack capacity:: 3U
International Protection (IP) code: Device protection rating against dust and water according to the international IP standard.: IP20
Cooling type:: Active
Display type:: LCD
Built-in fan:: Yes

Weight & dimensions

Weight:: 38 kg
Height:: 448 mm
Width:: 131 mm
Depth:: 640 mm
Battery width:: 131 mm
Battery depth:: 448 mm
Battery height:: 640 mm

Operational conditions

Operating altitude:: 1000 - 4000
Operating relative humidity (H-H):: 5 - 95
Storage temperature (T-T):: 15 - 60
Operating temperature (T-T):: 0 - 40

Packaging content

Manual:: Yes
Quick installation guide:: Yes
Rack mount kit:: Yes

Certificates

Certification:: European directives: L V 2014/35/EU low voltage; EMC 2014/30/EU electromagnetic compatibility -- Standards: Safety IEC EN 62040-1; EMC IEC EN 62040-2; RoHS compliant -- Classification in accordance with IEC 62040-3 VFI - SS - 111
Compliance certificates:: RoHS

Features

Emergency Power Off (EPO):: Yes
Output power capacity:: 4 kVA
Noise level: Not only energy saving helps to protect the environment but also noise level reduction. Noise level reduction up to 3 dB really means noise level reduction in 2 times. For example, a device with noise level 39 dB (А) will be two times quieter than a devise with a noise level 42 dB (А). Energy-saving certificate that shows noise level plays the role of an additional objective indicator basing on which You can successfully choose a product.: 48 dB
Input frequency:: 50/60
Maximum current:: 18.5 A
Efficiency:: 95 %
Output power:: 3600 W
Power protection features:: Short circuit, Overheating, Overdischarge, Over voltage, Input fuse, Battery discharge, Over current
Power factor:: 0.98
Input current Total Harmonic Distortion (THD):: 1 %
Output voltage Total Harmonic Distortion (THD):: 3 %
Surge protection:: Yes
Crest factor:: 3:1
Input operation voltage (max):: 240 V
Input operation voltage (min):: 220 V
Output operation voltage (min):: 220 V
Output operation voltage (max):: 240 V
Output frequency:: 50/60
ECO mode:: Yes
Number of input phases:: 1
Number of output phases:: 1
Input power factor:: 0.98
Waveform:: Sine
UPS topology:: Double-conversion (Online)

Safety regulation & standards

Safety:: CEI EN 62040-1

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Instructions

riello-SDU-4000-11472354.pdf

Description

Instructions

riello-SDU-4000-11472354.pdf

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Customer reviews

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Customer questions

FAQ

How much does the Riello Sentinel Dual UPS 4 kVA cost, and is it available for purchase?

The price is 1,610.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 09.07.2026 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

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 Riello 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 Riello 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

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, output power capacity, 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 Riello Sentinel Dual UPS 4 kVA?

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.

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Riello Sentinel Dual UPS 4 kVA 3600 W 3 AC outlets

Short description

Product information

Description

Advantages

Suitable for

Key specifications

How to use

Usage recommendations

Specifications

Ports & interfaces

Battery

Design

Weight & dimensions

Operational conditions

Packaging content

Certificates

Features

Safety regulation & standards

Instructions

Description

Instructions

Similar products

Product comparison

Customer reviews

Customer questions

How much does the Riello Sentinel Dual UPS 4 kVA cost, and is it available for purchase?

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

What payment options are available?

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

What is the warranty period?

Can the product be returned after purchase?

Where should I contact for warranty service?

How can I tell if this product suits my needs?

Where can I download the instructions for Riello Sentinel Dual UPS 4 kVA?