New 2026
Salicru SLC TWIN MULTI: PRO3 and RT3 up to 20 kVA with NIMBUS IoT and 3:3 / 3:1 / 1:1 configuration
The new SLC TWIN PRO3 MULTI and RT3 MULTI expand the TWIN family with 10, 15, and 20 kVA power ratings, total input/output flexibility, and standard IoT connectivity for data centers, IT environments, and critical industrial installations.
Table of Contents
- News and context: why Salicru launches the MULTI
- Available models: PRO3 MULTI and RT3 MULTI
- Flexible 3:3 / 3:1 / 1:1 configuration: maximum versatility
- NIMBUS IoT platform: advanced monitoring and management
- Eco-mode and Eco-mode+: up to 99% efficiency
- Complete technical features
- Technical specifications (SLC TWIN PRO3 DUAL 10 kVA)
- SLC TWIN PRO3 DUAL: the new 10 kVA option
- Applications and usage environments
- PRO3 MULTI vs RT3 MULTI comparison
- Options, accessories, and software
- Frequently Asked Questions
1News and context: why Salicru launches the MULTI
The Salicru SLC TWIN family has been on the market for over 12 years as a reference in single-phase On-line double conversion UPS. The SLC TWIN PRO3 and RT3 series have covered power ratings from 4 to 10 kVA with PF=1 so far. With the launch of the new MULTI, Salicru takes a qualitative leap in three dimensions: power, configuration flexibility, and IoT connectivity.
The new MULTI models do not replace the existing 4-10 kVA series, but rather expand them towards the higher power range, covering an important market gap: environments that need more than 10 kVA but want to maintain the single-phase/three-phase configuration flexibility of the TWIN range.
2Available models: PRO3 MULTI and RT3 MULTI
The MULTI range is presented in two main models, each with three power options, plus the new 10 kVA DUAL variant:
SLC TWIN PRO3 MULTI
Configurable On-line double conversion IoT UPS with PF=1 · 10-20 kVA
- Compact tower format
- Color touch screen
- 3:3 / 3:1 / 1:1 configuration via busbars
- Native NIMBUS IoT + Ethernet
- Smart slot for SNMP
- Parallelizable up to 3 units
- Dual network input available
- Independent bypass input
SLC TWIN RT3 MULTI
Configurable tower/rack On-line double conversion IoT UPS with PF=1 · 10-20 kVA
- Convertible tower/rack format (19")
- Rotating color touch screen
- 3:3 / 3:1 / 1:1 configuration via busbars
- Native NIMBUS IoT + Ethernet
- Smart slot for SNMP
- Parallelizable up to 3 units
- Dual network input available
- Independent bypass input
The three available power ratings
SLC 10000 TWIN PRO3/RT3 MULTI
Standard model10,000 VA / 10,000 W
PRO3 Code: SLC 10000 TWIN PRO3 MULTI
RT3 Code: SLC 10000 TWIN RT3 MULTI
SLC 15000 TWIN PRO3/RT3 MULTI
Intermediate model15,000 VA / 15,000 W
PRO3 Code: SLC 15000 TWIN PRO3 MULTI
RT3 Code: SLC 15000 TWIN RT3 MULTI
SLC 20000 TWIN PRO3/RT3 MULTI
Maximum power model20,000 VA / 20,000 W
PRO3 Code: SLC 20000 TWIN PRO3 MULTI
RT3 Code: SLC 20000 TWIN RT3 MULTI
3Flexible 3:3 / 3:1 / 1:1 configuration: maximum versatility
The differential strong point of the new MULTI is its flexible input and output configuration. By means of busbars (copper strips), a single unit can operate in three completely different modes, and in all of them it allows the use of two independent inputs for maximum protection and availability:
3:3 Mode
Three-phase input and output
Ideal for data centers and high load density systems. It provides maximum protection capacity in fully three-phase environments, balancing the load between the three phases and minimizing network unbalance.
3:1 Mode
Three-phase input / Single-phase output
Suitable for applications that concentrate protection on critical single-phase loads. It reduces unbalances and simplifies installation, taking advantage of the three-phase input for efficient power distribution.
1:1 Mode
Single-phase input and output
Designed for intermediate power environments with specific localized backup needs. Ideal for existing single-phase installations that require the power leap of the MULTI range.
Parallelism: up to 3 units for higher power or redundancy
Both the PRO3 MULTI and RT3 MULTI can be paralleled up to 3 units, offering two key scaling strategies for critical infrastructures:
Power scaling
- 3 × 20 kVA = up to 60 kVA total
- Capacity increase without changing the platform
- Adapts the system to future load growth
- Progressive and optimized investment
N+1 or 2N Redundancy
- N+1 configuration: one unit acts as a reserve
- Maximum availability for mission-critical services
- Maintenance without power interruption
- Compliance with Tier III/IV availability requirements
4NIMBUS IoT platform: advanced monitoring and management as standard
One of the most outstanding novelties of the MULTI is the integration of the Salicru NIMBUS IoT platform as a standard feature, at no additional cost. NIMBUS transforms UPS into connected devices that can be remotely managed in real time.
📡 NIMBUS IoT Platform — Integrated as standard
NIMBUS, developed by Salicru, allows complete and centralized management of all UPS equipment from anywhere, via mobile app or web portal.
📊 Real-time monitoring
Visualization of voltage, frequency, load, battery status, and all critical system parameters live.
🔔 Remote alarm management
Reception and management of alarms and alerts from any device. Proactive notifications in case of any incident.
🔋 Remote battery test
Execution of scheduled or on-demand battery tests from the app or web portal, without physical presence.
🖥️ Multi-device supervision
Simultaneous management of multiple Salicru equipment, even from different series, from a single centralized control panel.
Complete connectivity
Ethernet (RJ45)
Native port for IoT function and network monitoring
Wireless (HDMI)
Wireless connectivity for IoT function
USB
Direct connection for local management
RS-232
Serial interface for integration with existing systems
Smart slot
For SNMP, AS400, or Modbus cards
SNMP/Modbus
Integration with corporate management systems
Parallel port
Factory optional for parallelism configurations
Dry contacts
DRY in/out for integration with BMS and alarm systems
EPO
External emergency shutdown for high-security environments
5Eco-mode and Eco-mode+: up to 99% energy efficiency
The energy efficiency of the SLC TWIN MULTI is optimized through two advanced operating modes that adapt to the conditions of each installation:
Eco-Mode
Highly efficient operation that reduces energy losses under normal load conditions. Energy flows directly from the grid with continuous monitoring, activating full protection in milliseconds if any anomaly is detected.
Eco-Mode+
Advanced version that combines maximum efficiency with continuous monitoring, ensuring operational continuity even under variable loads. Ideal for installations where energy efficiency is a critical requirement but total protection cannot be compromised.
| Operating mode | Typical efficiency | Protection | Recommended for |
|---|---|---|---|
| On-line (double conversion) | 95% | Maximum — continuous total protection | Ultracritical loads, electrically noisy environments |
| Eco-Mode | 98% | High — ms activation upon anomalies | Stable environments with quality grid |
| Eco-Mode+ | 99% | High + continuous monitoring | Infrastructures that prioritize efficiency without compromising protection |
6Complete technical features
Multifunction and rotating touch screen (RT3 MULTI)
Both models incorporate a color touch screen that represents a qualitative leap over previous generations. Its intuitive design allows immediate and accurate visualization of the most relevant parameters:
- Input and output voltage (per phase in 3:3 mode)
- Grid and output frequency
- Percentage of connected load
- Battery status and level
- Active alarms and event history
- Estimated remaining autonomy based on current load
The RT3 MULTI model adds a rotating screen, which automatically orients itself in both tower and rack positions, facilitating reading regardless of the mounting configuration.
Modular design with greatly reduced MTTR
The system has been designed with a modular architecture that allows quick and easy replacement of main components without special tools or prolonged service interruptions. Main advantages:
- Significant reduction of MTTR (Mean Time To Repair)
- Preventive and corrective maintenance without load shutdown
- Flexibility in system expansion or upgrade
- Adaptation to new power or redundancy needs without changing the entire equipment
Independent bypass input
The equipment can incorporate an independent bypass input, which allows maintenance or replacement of power modules without interrupting the supply to critical loads. During UPS maintenance tasks, the load continues to receive power directly from the electrical grid.
Intelligent battery system
- Type: Sealed Pb-Ca batteries, AGM, maintenance-free
- Charging: 3-state intelligent system with rest periods to extend lifespan
- Recharge time: 3 hours to 90%
- Temperature compensation: Yes — the system adjusts the charging voltage based on ambient temperature
- RJ45 port for external battery modules (EBM): Automatic detection for autonomy expansions
7Technical specifications (SLC TWIN PRO3 DUAL 10 kVA)
The complete specifications of the TWIN PRO3 DUAL family (which shares a platform with the MULTI) provide an accurate reference of the technical capabilities of the range:
| Technical specifications — SLC TWIN PRO3 DUAL 10 kVA | |
|---|---|
| Technology | |
| Technology | On-line double conversion · DSP Control |
| Format | Tower |
| Operating standard | VFI-SS-11 (EN 62040-3) |
| Input | |
| Nominal voltage | 3×380/400/415 V or 220/230/240 V |
| Voltage range | 160–275 V |
| Nominal frequency | 50/60 Hz (auto-detection) |
| Frequency range | 40 ÷ 70 Hz |
| THDi | <1% linear load · <5% non-linear load |
| Input power factor | ≥0.95 three-phase · ≥0.99 single-phase |
| Output | |
| Power factor | 1 (PF = 1) |
| Nominal voltage | 220/230/240 V |
| Voltage accuracy (battery mode) | ±1% |
| THDv | <1% linear load · <5% non-linear load |
| Synchronized frequency | 50 ±5 Hz / 60 ±6 Hz |
| On-line efficiency | 95% |
| Eco-mode efficiency | 98% |
| Parallelism | Yes, up to 3 units |
| Battery | |
| Type | Sealed Pb-Ca, AGM, maintenance-free |
| Charging type | 3-state intelligent charging |
| Recharge time | 3 hours to 90% |
| Temperature compensation | Yes |
| Communication | |
| Standard ports | Dry in/out · EPO · USB · RS-232 · RJ-45 · HDMI |
| Smart slot | For SNMP / AS400 / Modbus |
| Monitoring software | Winpower (Windows, Linux, Mac) + iOS/Android APP + WEB Portal |
| Other functions | |
| Cold-start (start from batteries) | Yes |
| Emergency shutdown (EPO) | Yes |
| Eco-mode | Yes |
| Environmental conditions | |
| Operating temperature | 0–50 °C |
| Relative humidity | Up to 95%, without condensation |
| Acoustic noise at 1 m | <60 dB |
| Standards and certifications | |
| Safety | EN IEC 62040-1 |
| Electromagnetic compatibility | EN 62040-2 (C3) |
| Corporate certifications | ISO 9001 · ISO 14001 · ISO 45001 |
8SLC TWIN PRO3 DUAL: the new 10 kVA option with configurable input
⚡ SLC TWIN PRO3 DUAL — 10 kVA
Added to the MULTI novelties is the new SLC TWIN PRO3 DUAL, available only in 10 kVA. While the MULTI offer the three configurations (3:3, 3:1, and 1:1), the DUAL specifically focuses on input flexibility for installations that need compatibility between single-phase and three-phase networks.
The PRO3 DUAL allows operating the UPS with single-phase or three-phase input, with always single-phase output. It is the solution for installations where the input power supply may vary (for example, a building expanding its electrical installation from single-phase to three-phase) without the need to change the UPS equipment.
9Applications and usage environments
The Salicru SLC TWIN MULTI UPS have been designed to meet the needs of intermediate power critical infrastructures. These are the main environments where they provide maximum value:
Data centers
3:3 Mode for maximum three-phase protection. Parallelism for N+1 or 2N redundancy.
Industrial environments
Protection of PLCs, SCADA, industrial robots, and critical control machinery.
IT Infrastructures
Servers, ERP systems, Business Intelligence, CRM, and corporate networks.
Telecommunications
Communication rooms, network nodes, and telecom data center infrastructure.
Healthcare sector
Critical medical equipment, HIS/PACS systems, and hospital infrastructure.
Mixed installations
Environments that combine three-phase and single-phase loads in the same installation.
10PRO3 MULTI vs RT3 MULTI comparison
Both models share the same technical platform. The selection mainly depends on the installation format and the physical needs of the environment:
11Options, accessories, and software
Factory options
- WiFi dongle for wireless connectivity
- NIMBUS SNMP card for IP networks
- NIMBUS AS400 card
- NIMBUS RS-485 MODBUS card
- Parallel kit for parallelism configuration
- Gland kit for professional cabling
- Anti-dust filters for industrial environments
Available accessories
- Ethernet/SNMP or GPRS adapter
- RCCMD software (simultaneous multi-server shutdown)
- UNMS II software (network UPS management)
- BACS II (battery monitoring)
- External manual bypass for maintenance
- Temperature and humidity sensor
- Isolating transformer / Autotransformador
- Parallel kit (management + cables + interconnections)
- Backfeed protection · PCB conformal coating
Included monitoring software
NIMBUS App + WEB Portal
- Available for iOS and Android (free)
- Access to the web portal without installation
- Real-time monitoring from anywhere
- Remote alarm management and battery tests
- Multi-device supervision of various series
Winpower — Multiplatform software
- Compatible with Windows, Linux, and macOS
- Local and remote UPS management
- Graceful OS shutdown
- Event history and performance reports
- Freely downloadable at salicru.com
Services and warranty extensions
| Service | Description | Code |
|---|---|---|
| Commissioning 7.5-25 kVA | Official service during business hours | 502AA000054 |
| 24/7 technical support | 24h / 365 days phone and technical support | 555AB002219/20 |
| F0 1Y maintenance contract | Preventive + corrective + materials (without batteries) | 555AB999995 |
| M0 1Y maintenance contract | Preventive + corrective + materials (without consumables) | 555AB999996 |
| VP 1Y maintenance contract | Annual preventive visit | 555AB999999 |
| EW+1Y RT3/PRO3 B1 8÷10K | +1 year warranty extension for B1 8-10 kVA models | 557AA000447 |
12Frequently asked questions about the Salicru SLC TWIN MULTI
The new Salicru SLC TWIN PRO3 MULTI and RT3 MULTI mark an important qualitative leap for the SLC TWIN family. The combination of power ratings up to 20 kVA, flexible 3:3/3:1/1:1 configuration, standard integrated NIMBUS IoT platform, 99% Eco-mode+ efficiency, and parallelism up to 3 units makes these equipment some of the most versatile options in the UPS market for intermediate power critical infrastructures.
For installers and IT administrators, the key is flexibility without compromise: a single model adapts to three different electrical architectures, IoT connectivity is standard at no added cost, and the rack format of the RT3 MULTI facilitates integration in server rooms and data centers. With the new 10 kVA PRO3 DUAL as an additional option, Salicru covers all installation scenarios in the 10-20 kVA range.
For more information, detailed specifications, and to locate distributors, check the official Salicru website: SLC TWIN PRO3 MULTI · SLC TWIN RT3 MULTI · SLC TWIN PRO3 DUAL.
Information based on official Salicru sources: product pages on salicru.com, official press release (April 2025), and technical data sheets. All specifications are subject to change by the manufacturer.
