Voltronic Power Fortress 3/3 300K

UPSModel

Voltronic UPS Fortress 3/3 300K

Discover the Fortress 3/3 300K by Voltronic Power with 3 x 380/400/415 VAC and auto-sensing 50/60Hz frequency for reliable power protection.

  • Nominal Voltage: 3x 380/400/415 VAC
  • Voltage Range: 110-300 VAC @ 50% load; 184-276 VAC @100% load
  • Frequency: 50/60Hz (Auto sensing)
AED 95,000incl. VAT

In stock

  • Delivered within 3 business days, door to door, to every market we serve.
  • Dispatched the same business day for an order placed before 21:00 (Dubai time), or the next business day after.
  • Delivery charge: free
  • 2-year warranty
Full SpecificationsDownload datasheet (PDF)

Voltronic UPS Fortress 3/3 300K features

  • Backfeed detection built-in

  • Single power module on/off control

    Single power module on/off control through LCD panel

  • Pluggable power module design with

    Pluggable power module design with front access

  • Parallel operation up to 4

    Parallel operation up to 4 units with common battery

  • Dual-mains inputs

  • Built-in 4 switches including Mains

    Built-in 4 switches including Mains input, bypass input, output and maintenance bypass switch

  • Flexible battery configuration and adjustable

    Flexible battery configuration and adjustable charging current

  • Optional extra communication is available

  • Emergency power off function (EPO)

  • Generator compatible

  • 50Hz/60Hz frequency converter mode

  • Compatible to Lithium-ion battery

About the Voltronic UPS Fortress 3/3 300K

The Voltronic UPS Fortress 3/3 300K is a Three Phase Online UPS with a voltage regulation of ≤ ± 2% Typical (unbalanced load), making it a dependable choice for protecting critical loads from power interruptions. It accepts an operating voltage range of 110-300 VAC @ 50% load. The unit measures 1100x600x1475 and weighs 396. It is rated to operate across 0-40°C, with a humidity tolerance of < 95% and non-condensing. The Voltronic UPS Fortress 3/3 300K is certified to IEC/EN 62040-1 and IEC/EN 62040-2 Category C3 and is backed by a 2-year manufacturer warranty from Voltronic Power. Its published specifications also list Frequency Range (Synchronized range) of 46Hz ~ 54Hz or 56Hz ~ 64Hz, Harmonic Distortion of ≤ 2% THD (Linear Load); ≤ 4% THD (Non-linear Load) and AC Mode of 95.5%.

Specifications last updated 27 March 2026

Voltronic UPS Fortress 3/3 300K full specifications

Electrical(22)

Nominal Voltage3 x 380/400/415 VAC (3Ph+N)
Voltage Range110-300 VAC @ 50% load; 184-276 VAC @100% load
Nominal Frequency50/60Hz (Auto sensing)
Frequency Range40Hz ~ 70Hz
Power Factor>= 0.99 @ 100% load
Harmonic Distortion (THDi)<5% @ 100% load
Voltage Regulation (Steady state)≤ ± 2% Typical (unbalanced load)
Frequency Range (Synchronized range)46Hz ~ 54Hz or 56Hz ~ 64Hz
Overload Capability≤ 110% for 1 hour, 111% ~ 125% for 10 mins, 126%~150% for 1 min and >150% for 200ms
Harmonic Distortion≤ 2% THD (Linear Load); ≤ 4% THD (Non-linear Load)
AC Mode95.5%
ECO Mode98.5%
Maximum Voltage+/- 240V (12V x 40 Pcs)
Minimum Voltage+/- 192V (12V x 32 Pcs)
Floating Charge Voltage2.28V / Cell (2.25 ~ 2.33 Selectable)
Boost Charging Voltage2.35V/Cell
Maximum Charging Current90A (Adjustable)
ManagementSupports Windows® Family, Linux and MAC
Optional SNMPPower management from SNMP manager and web browser
SafetyIEC/EN 62040-1
EMCIEC/EN 62040-2 Category C3
Battery Mode94.5%

Mechanical(4)

IP ClassIP20, optional IP31
Dimension, D x W x H (mm)1100x600x1475
Net Weight (Kgs)396
Weight396

Environmental(4)

Operating Temperature0-40°C
Operating Humidity< 95% and non-condensing
Altitude<1000m for Nominal power
Temperature CompensationYes

Certifications(4)

  • IEC 62040-1
  • EN 62040-1
  • IEC 62040-2 Category C3
  • EN 62040-2 Category C3

Downloads & support

PDFThe manufacturer's sheet, to print or share

Frequently Asked Questions

What voltage does the Voltronic UPS Fortress 3/3 300K operate on?

The Voltronic UPS Fortress 3/3 300K has a nominal voltage of 3 x 380/400/415 VAC (3Ph+N) and an operating voltage range of 110-300 VAC @ 50% load.

What are the physical dimensions and weight of the Voltronic UPS Fortress 3/3 300K?

The Voltronic UPS Fortress 3/3 300K measures 1100x600x1475 and weighs 396.

What is the operating temperature range of the Voltronic UPS Fortress 3/3 300K?

The Voltronic UPS Fortress 3/3 300K operates across 0-40°C and a humidity range of < 95% and non-condensing.

What is the maximum charge current of the Voltronic UPS Fortress 3/3 300K?

The Voltronic UPS Fortress 3/3 300K has a maximum charge current of 90A (Adjustable).

How does the Voltronic UPS Fortress 3/3 300K regulate voltage?

The Voltronic UPS Fortress 3/3 300K provides a voltage regulation of ≤ ± 2% Typical (unbalanced load).

What ingress protection rating does the Voltronic UPS Fortress 3/3 300K carry?

The Voltronic UPS Fortress 3/3 300K carries an ingress protection rating of IP20, optional IP31.

What is the power quality of the Voltronic UPS Fortress 3/3 300K?

The Voltronic UPS Fortress 3/3 300K has a power factor of >= 0.99 @ 100% load and a harmonic distortion of <5% @ 100% load.

What certifications does the Voltronic UPS Fortress 3/3 300K have?

The Voltronic UPS Fortress 3/3 300K is certified to IEC/EN 62040-1 and IEC/EN 62040-2 Category C3, meeting recognised international standards for safety and performance.

What warranty coverage is available for the Voltronic UPS Fortress 3/3 300K?

The Voltronic UPS Fortress 3/3 300K is backed by a 2-year manufacturer warranty from Voltronic Power.

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