Intelbras DNB 10~30kVA 3-Phase 220V Online Tower UPS

Brand: Intelbras

Model Series: DNB 10kVA, DNB 20kVA, DNB 30kVA

Product Overview

The Intelbras DNB 10~30kVA 3-Phase 220V online tower UPS series is designed to provide high efficiency and reliability for critical applications. It is suitable for businesses, data centers, networks, telecommunications, broadcast, wholesale/retail infrastructure, industries, control and automation systems, healthcare, education, government, banks, and financial institutions.

High Reliability Features

Protection Levels: 1. Mains failure/blackout; 2. Voltage distortions; 3. Voltage surges; 4. Under-voltage and Over-voltage; 5. Electromagnetic noise; 6. Frequency variations; 7. Generator switching transients; 8. Power factor correction.
Wide Input Voltage Range: Features an input voltage range of 138Vac~485Vac and an input frequency of 40-70Hz. This high adaptability allows operation without switching to battery mode, extending battery life and reducing Total Cost of Ownership (TCO).
High Overload Capacity: In double conversion mode, it supports 105% load for extended operation, 130% load for 10 minutes, and 155% load for 1 minute.
High Power Factor: Achieves a power factor of VA = Watt (1.0).
Corrosion-Resistant Coating: PCBs are coated to provide enhanced protection against environmental influences like dust, salt mist, and corrosion.
Intelligent Fan Control: Automatic fan speed adjustment optimizes energy consumption and reduces noise.
Advanced Short-Circuit Protection: Configurable protection time from 10 to 200 ms ensures continuous operation for connected circuits.
Cold Start Function: Allows the UPS to start directly from batteries without a mains connection.
Dual DSP: High-precision and high-speed Dual DSP independently controls the rectifier and inverter, ensuring reliability and high performance.

Flexible Design

Maintenance Bypass Switch: Enables scheduled maintenance without disconnecting loads, ensuring operational continuity and protection.
Impact Load Function: The UPS can support transformer loads at its output.
Battery Compatibility: Compatible with VRLA or vented lead-acid batteries.
Active Parallelism: Supports active parallelism of up to 4 units for power expansion and N+X redundancy (parallel plates and cables included).
Shared Batteries: Allows sharing a battery bank among up to 2 parallel UPS units, saving space and reducing TCO.

Frequency Conversion

The frequency conversion function allows input voltage at 60Hz to be output at 50Hz, or vice versa, enabling the operation of sensitive imported equipment.

Green Power

IGBT and Three-Level Inverter: Utilizes IGBT and three-level inverter technology, offering THDi <3% at full load, an input power factor >0.99, AC/AC efficiency up to 96%, and ECO mode efficiency up to 99%.
Self-Load Test: The self-load test function simplifies commissioning, saving time and costs by eliminating the need for expensive temporary loads or complex cabling preparations.

Intelligent Management

Pre-Alarm Function: Allows programming alerts for maintenance needs of key components (capacitors, fans) and accessories (batteries, dust filters).
Smart De-Dust Function: Automatic fan cleaning removes excessive dust. Programmable with adjustable intervals, reducing preventive maintenance time.
Multiple Interfaces: Includes RS485, EPO, parallelism, 2 intelligent slots for SNMP cards, dry contact, and BMS.

User-Friendly Interface

4.3" Touch Screen Display: Features a color 4.3" touch screen with LED indicators.
Intuitive Graphical Interface: Displays a single-line diagram showing system status, including voltage, current, UPS temperature, operating status, load capacity, and battery capacity.
Extensive Data Storage: Capable of storing up to 1000 events.
Start/Stop Button: Equipped with protection against accidental activation to prevent unintentional shutdown of critical loads.

System Diagram

The system diagram illustrates the power flow: Mains power connects to a Rectifier and a Static Switch. The Rectifier charges the Batteries and supplies the Inverter. The Inverter then powers the load. The Static Switch can bypass the inverter, directly connecting mains to the load, or switch to the inverter's output.

Components: Rede (Mains), Retificador (Rectifier), Chave Estática (Static Switch), Baterias (Batteries), Inversor (Inverter).

Technical Specifications

Specification	10kVA-3PH-220V-TT-TW	20kVA-3PH-220V-TT-TW	30kVA-3PH-220V-TW
Model	10kVA-3PH-220V-TT-TW	20kVA-3PH-220V-TT-TW	30kVA-3PH-220V-TW
Topology	Online Double Conversion
Waveform	Pure Sine Wave
UPS Classification	According to IEC 62040-3: VSI SS 111
Input
Nominal Voltage	220V(F-F)/127V(F-N)
Voltage Range	154-265V(F-F) @ 75%-100% Load; 120-265V(F-F) @ 0%-75% Load
Phases	3:3 (3-phase input - 3-phase output)
Nominal Frequency	50 / 60 Hz (Automatic Detection)
Frequency Range	40 - 70 Hz
Power Factor	≥0.99	≥0.99	≥0.99
Empty Consumption	100 W	200 W	300 W
THDi	<3% (linear load)
Generator Input	Compatible
Input Breaker	Yes
Output
Power	10 kVA / 10 kW	20 kVA / 20 kW	20 kVA / 20 kW
Power Factor	1.0	1.0	1.0
Voltage	190/200/208/220 V (L-L)
Frequency (Hz)	50/60Hz ± 0.1Hz (Battery Mode)
Phases	3:3
Freq. Range (Double Conversion Mode)	Input: 50/60 HZ ± 5Hz - Output: Synchronized with mains; Input: 40-70Hz. Output: 50/60Hz ± 0.1Hz without synchronization.
Crest Factor	3:1
Voltage Regulation (Double Conversion Mode)	Static: ± 1%	Static: ± 1%	Static: ± 1%
	Dynamic: ± 3%	Dynamic: ± 3%	Dynamic: ± 3%
Waveform	Sine Wave
THDv	THD <1% (linear load) THD <3% (non-linear load)
Efficiency AC/AC (max.)	94%	94%	94%
ECO Mode	98%	98%	98%
Transfer Time	0 ms
Overload Protection	105%~110% load: 60 min; 110%~130% load: 10 min; 130%~150% load: 1 min; >150% load: transfers to bypass immediately.
Bypass
Output Breaker	Automatic and manual
Bypass	Yes
Overload	Load: 0-130%: Unlimited operation; Load: 130% - 155%: 1 minute; Load: >155%: 200ms
Voltage Range	±10%/±15%/±15%
Frequency Range	±5%/±10%
Connection	Bypass connection independent of rectifier input
Battery
Voltage	±120 (±96~±120 configurable)
Battery Type	VRLA 12 V / 9 Ah
Internal Battery Quantity²	2×10 (20 total)	2×2×10 (40 total)	2×3×10 (60 total)
Recharge Current	2A (1-10A config.)	2A (1-20A config.)	2A (1-20A config.)
External Battery Terminal	Terminal block	Terminal block	Terminal block
Battery Cabinet Compatible	4820223 - GB 8009-TW-126A
DoD Voltage	10.5 V / Battery
Float Voltage	13.5 V / Battery
External Battery Breaker	Yes
Resources
Protections	Low battery, overload, short circuit, overheating, and other related faults
End of autonomy in battery mode	Emits audiovisual alert and shuts down the UPS
Self-diagnosis	Yes
Audiovisual Alarms	Short circuit, low battery, overload, overheating, system failures

Autonomy Table (Hours:Minutes)

Note: Values are approximate and depend on battery module configuration (+40*9AH).

Model	Battery Module	Runtime (Hours:Minutes)
Model	Battery Module	1.0KW	2.0KW	3.0KW	4.0KW	5.0KW	6.0KW	7.0KW	8.0KW	9.0KW	10.0KW
10kVA	0	53min	22min	12min	8min	6min	5min	4min	3min	2min	2min
	1	8h9min	3h20min	1h57min	1h19min	59min	46min	37min	31min	26min	23min
	2	18h15min	7h28min	4h22min	2h58min	2h12min	1h43min	1h24min	1h10min	59min	51min
	3	30h12min	12h23min	7h14min	4h56min	3h39min	2h51min	2h19min	1h56min	1h39min	1h25min
	4	43h37min	17h53min	10h28min	7h7min	5h16min	4h7min	3h21min	2h48min	2h23min	2h4min
	5	58h16min	23h53min	13h58min	9h31min	7h3min	5h31min	4h28min	3h44min	3h11min	2h45min
20kVA	0	53min	22min	12min	8min	6min	5min	4min	3min	2min	2min
	1	4h3min	1h39min	58min	39min	29min	23min	18min	15min	13min	11min
	2	8h9min	3h20min	1h57min	1h19min	59min	46min	37min	31min	26min	23min
	3	12h56min	5h18min	3h6min	2h6min	1h33min	1h13min	59min	49min	42min	36min
	4	18h15min	7h28min	4h22min	2h58min	2h12min	1h43min	1h24min	1h10min	59min	51min
	5	24h1min	9h51min	5h45min	3h55min	2h54min	2h16min	1h50min	1h32min	1h18min	1h8min
30kVA	0	53min	22min	12min	8min	6min	5min	4min	3min	2min	2min
	1	2h52min	1h10min	41min	28min	20min	16min	13min	11min	9min	8min
	2	5h20min	2h11min	1h16min	52min	38min	30min	24min	20min	17min	15min
	3	8h09min	3h20min	1h57min	1h19min	59min	46min	37min	31min	26min	23min
	4	11h16min	4h37min	2h42min	1h50min	1h21min	1h4min	52min	43min	37min	32min
	5	14h39min	6h0min	3h30min	2h23min	1h46min	1h23min	1h7min	56min	48min	41min

Accessory Compatibility

UPS	Battery Cabinet	Remote Management Card	Dry Contact Card
4820165 - DNB 10KVA-3PH-220V-TT-TW	4820223 - GB 8009-TW-126A	4820137 - PGR 502S	4820138 - PCS 485Y3
4820163 - DNB 20KVA-3PH-220V-TT-TW
4820186 - DNB 30KVA-3PH-220V-TT-TW

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