Microtek MAX+ 1KVA 36V Pure Sinewave Online UPS without Batteries
- MAX+ Series – 2 Years Warranty: Premium high-frequency online double-conversion UPS with enhanced 2-year comprehensive onsite warranty – superior protection for critical applications
- 1KVA / 900W True Online Double-Conversion: Zero transfer time pure sinewave output – complete galvanic isolation from input power anomalies, surges, and frequency variations
- External Battery Architecture – No Internal Batteries: Requires external 36V DC battery bank (3 x 12V batteries in series). Choose your own battery capacity from 7AH to 200AH+ for fully customisable backup runtime
- 9.5 Amp High-Speed Intelligent Charger: Integrated boost charger rapidly recharges large external battery banks – 9.5A charging current ensures minimal downtime between power cuts
- Inbuilt OVCD & Advanced Features: Over Voltage Cut-Off Device with surge protection, generator compatible, advanced PFC, EMI/RFI noise filter, smart RS232, and SNMP slot (optional)
₹23,690.00 Original price was: ₹23,690.00.₹18,999.00Current price is: ₹18,999.00.
Fast Shipping
Free Shipping
Cash On Delivery
Brand Warranty
7-Day Return & Replacement
-
Free Delivery
-
Cash on Delivery
-
Manufacturer's Warranty
-
Free 7-Day Return & Replacement
Payment Methods:
Description
The Microtek MAX+ 1KVA 36V Pure Sinewave Online UPS is a premium high-frequency double-conversion uninterruptible power supply from Microtek’s advanced MAX+ Series, distinguished by its extended 2-year comprehensive onsite warranty. Engineered for mission-critical applications that demand zero downtime, clean regulated power, and the freedom to scale backup runtime, this true online UPS delivers continuous pure sinewave AC power with complete isolation from input grid disturbances. This specific model is configured WITHOUT internal batteries, giving system integrators, IT professionals, and industrial users complete control to build external 36V battery banks precisely matched to their runtime requirements – from compact 7AH office setups to high-capacity 200AH+ industrial configurations.
Explore the complete range of Microtek MAX+ Series professional power solutions at our dedicated Microtek MAX+ UPS collection. Every unit is sourced from authorised channels and carries manufacturer-verified specifications with full 2-year warranty coverage.
MAX+ Series – 2 Years Comprehensive Onsite Warranty
The MAX+ Series represents Microtek’s advanced line of high-frequency online UPS systems, designed with IGBT-based double-conversion technology and backed by an enhanced 2-year comprehensive onsite warranty. This extended warranty coverage provides greater peace of mind for business-critical and industrial applications, with Microtek’s authorised service network ensuring rapid onsite support. Unlike standard 1-year warranties, this MAX+ model delivers long-term reliability assurance for your investment.
True Online Double-Conversion Technology
The MAX+ 1KVA employs genuine online double-conversion topology. The rectifier converts incoming AC mains to regulated DC power, simultaneously charging your external battery bank, while the inverter continuously converts DC back to clean, stable pure sinewave AC power for connected equipment. There is zero transfer time – the output is continuously generated from the inverter, making even the slightest flicker or dropout on the input side completely invisible to your loads. Your servers, network infrastructure, medical devices, and industrial controllers remain operational through every voltage sag, spike, surge, or complete blackout without a single interruption.
External Battery Architecture – Unlimited Runtime Scalability
This UPS is purpose-built for users who require customisable backup duration or already maintain an existing 36V battery bank. It accepts an external 36V DC battery bank formed by connecting three 12V batteries in series. You have complete freedom to select battery type and capacity – from compact 7Ah SMF/VRLA batteries for short-duration office protection to large 200Ah+ tubular batteries for extended industrial runtime. The UPS automatically adapts to the connected capacity, and the powerful 9.5A high-current charger ensures even large battery banks are recharged rapidly. Battery replacement and future capacity upgrades are simplified, as no internal battery compartment access is required.
Critical Note – Batteries Not Included: This unit contains no internal batteries. You must purchase three matching 12V batteries and appropriate interconnect cables separately. This is the NM36MX1KK11 external battery configuration, not the -IB internal battery version.
9.5 Amp High-Performance Intelligent Battery Charger
Standard UPS systems with internal batteries use low-current trickle chargers rated at only 0.7-0.8A, requiring many hours to recharge depleted batteries. The MAX+ 1KVA features a robust 9.5A boost charger specifically engineered for external battery banks. This higher charging current dramatically reduces recharge time – your system is ready for the next power failure sooner. The advanced three-stage intelligent charging algorithm (bulk, absorption, float) optimises battery health, prevents overcharging, and maximises battery service life. Automatic battery charging continues even when the UPS is in off mode, ensuring your external bank remains fully charged and ready.
Inbuilt Over Voltage Cut-Off Device (OVCD) and Surge Protection
The MAX+ 1KVA incorporates an inbuilt Over Voltage Cut-Off Device with integrated surge protection. This critical safety feature continuously monitors incoming mains voltage and instantly disconnects the UPS if it detects unsafe voltage levels, safeguarding both the UPS unit and your sensitive connected equipment from damage. The static bypass circuit provides an automatic alternative power path during overload conditions or internal faults, ensuring continuous load operation. Comprehensive protection includes overload, short circuit, over-temperature, DC fan failure, and low battery cutoff.
Technical Specifications
| Category | Specification |
|---|---|
| Manufacturer | Microtek International Pvt. Ltd. |
| Series | MAX+ Series (High Frequency Double Conversion IGBT Technology) |
| Model | MAX+ 1KVA 36V (Without In-Built Batteries) |
| Model Reference | NM36MX1KK11 – External Battery Configuration |
| UPS Topology | Online Double-Conversion (True Online) |
| Rated Capacity | 1 KVA / 900 Watts |
| Nominal DC Voltage | 36 VDC |
| Battery Configuration | External – 3 x 12V batteries in series (batteries not supplied) |
| Technology | High Frequency IGBT Based, Micro Controller Controlled |
| Output Waveform | Pure Sinewave |
| Input Voltage Range (Load >50%) | 160 – 295 V AC (±5 V) |
| Input Voltage Range (Load <50%) | 118 – 295 V AC (±5 V) |
| Input Frequency Range | 40 – 70 Hz (auto-sensing) |
| Phase | Single Phase Input / Single Phase Output with Ground |
| Output Voltage | 208 / 220 / 230 / 240 V AC (user-selectable) |
| Output Frequency (Mains Synchronized) | 47 – 53 Hz or 57 – 63 Hz |
| Output Frequency (Battery Mode) | 50 Hz ±0.1 Hz or 60 Hz ±0.1 Hz |
| Transfer Time | 0 ms (AC mode to battery mode) – true online design |
| Output Power Factor | 0.9 |
| Crest Factor | 3:1 (handles high inrush currents) |
| Total Harmonic Distortion (THD) | ?2% (linear load) / ?4% (non-linear load) |
| Overall Efficiency | 85% – 92% (load dependent) |
| Input Power Factor (Full Load) | >0.99 (Advanced PFC Technology) |
| Battery Charging Current | 9.5 Amps (maximum) – boost charge |
| Communication Interface | RS232 (standard), SNMP slot (optional), monitoring software included |
| Indication | LCD + LED display for real-time status |
| Audible Noise | <50 dBA @ 1 meter (with fan speed control) |
| UPS Overload Capacity | 110%: 30s transfer to bypass; 150%: instant transfer to bypass |
| Short Circuit Protection | 5 cycles turn off inverter, no transfer to bypass, audible alarm |
| Protection Features | Inbuilt Over Voltage Cut-Off Device (OVCD) with surge protection Static bypass (enable/disable) Overload, short circuit, over-temperature protection EMI/RFI noise filter Low battery cut-off DC fan failure protection Input fuse blown / breaker action |
| Generator Compatibility | Yes – supports sinewave generator input |
| Isolation Transformer | Optional (external) – not inbuilt in this model |
| Emergency Power Off (EPO) | Yes (support available) |
| Form Factor | Tower |
| Enclosure Material | MS (Mild Steel), powder coated, minimum thickness 1.2 mm |
| Degree of Protection | IP21 (indoor installation) |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -20°C to +60°C |
| Operating Humidity | 0% – 95% RH (non-condensing) |
| Dimensions (W x D x H) | Approx. 397 x 145 x 220 mm (15.6 x 5.7 x 8.7 inches) |
| Net Weight (UPS only) | 7.8 kg (batteries not included) |
| Country of Origin | India (Made in India) |
| Warranty | 2 Years Comprehensive Onsite Warranty |
- NM36MX1KK11 (THIS LISTING): MAX+ Series, 1KVA, 36V, NO internal batteries, 9.5A charger, weight 7.8 kg, 2 years warranty. Requires external 36V battery bank.
- NM36MX1KK11-IB (INTERNAL BATTERY VERSION): MAX Series (not MAX+), 1KVA, 36V, WITH 3x7AH internal batteries, 0.7-0.8A charger, weight 13.5 kg, 1 year warranty. NOT this product.
Advanced Power Factor Correction and Generator Compatibility
Built-in Advanced Power Factor Correction (PFC) technology maintains input power factor above 0.99 at full load, significantly reducing harmonic pollution and improving overall energy efficiency. The wide input voltage and frequency window makes this UPS fully compatible with diesel or petrol generators, automatically synchronising to the generator’s output even when voltage and frequency fluctuate. This makes the MAX+ 1KVA an ideal choice for sites with frequent, prolonged power cuts where generator backup is essential, as well as for mobile applications, events, and temporary installations.
Advanced Battery Management and Smart Communication
The Microtek Advanced Battery Management system continuously monitors battery voltage, temperature, and charge current, automatically adjusting charging parameters to suit the connected battery type and condition. This intelligent management extends battery service life and optimises performance. The Smart RS232 communication interface, complete with included monitoring software, provides real-time status, event logging, and graceful shutdown capabilities for connected servers and workstations. An optional SNMP card slot enables advanced network management integration.
Package Contents
- Microtek MAX+ 1KVA 36V Pure Sinewave Online UPS (Without In-Built Batteries) – Model NM36MX1KK11
- Input power cable (Indian standard 15A plug)
- Output socket strip / terminal block (configuration may vary by SKU)
- RS232 communication cable
- Monitoring software CD
- User manual and quick installation guide
- Warranty card (2 Years Onsite Warranty registration)
Important – Batteries Not Included: This UPS contains no internal batteries. External 36V battery bank (3 x 12V batteries), battery interconnect cables, and battery rack are NOT included and must be ordered separately.
Why Buy from Thencix?
Thencix is India’s trusted source for professional power backup solutions. Every UPS, inverter, and accessory is specification-verified, securely packaged, and backed by dedicated after-sales support.
- Authentic products with manufacturer-verified specifications
- Professional, damage-safe packaging
- Fast delivery across India
- GST invoice with every order
- Cash on Delivery available
- Guided installation support via WhatsApp
- In-house warranty assistance — no need to contact the brand directly
- Warranty appointments arranged for you
Support:
Email: support@thencix.com
WhatsApp: +91 98911 50949
Build Your Complete Power Backup System
Select the right external battery bank for your runtime requirements:
- 3 x 12V SMF/VRLA batteries (7Ah to 26Ah) – ideal for short-duration office, retail, and network protection
- 3 x 12V tubular or SMF batteries (40Ah to 200Ah+) – for extended runtime in industrial, healthcare, and residential applications
- Battery interconnect cables, racks, and accessories – complete your professional installation
Ideal Applications
- Data Centers & Server Rooms: Zero transfer time protects critical IT infrastructure from data corruption and hardware damage
- Telecommunications: Network racks, exchanges, edge servers, and communication equipment
- Healthcare Facilities: Diagnostic devices, patient monitors, pathology equipment, and laboratory instruments
- Industrial Automation: PLCs, sensors, control systems, and process equipment
- Commercial & Retail: POS systems, billing computers, security control rooms, and building management systems
- SOHO & Small Business: Workstations, NAS, routers, and security systems requiring reliable backup
- Educational Institutions: Computer labs, library servers, and administrative systems
Frequently Asked Questions
Does this UPS include internal batteries?
No. This is the MAX+ Series external battery configuration (Model NM36MX1KK11) with NO internal batteries. It requires an external 36V DC battery bank consisting of three 12V batteries connected in series. Batteries are sold separately. This design allows you to choose the exact battery capacity you need for your specific runtime requirements and makes future battery replacements simpler and more cost-effective.
What is the difference between this MAX+ model and the standard MAX with internal batteries?
This MAX+ NM36MX1KK11 features: (1) NO internal batteries – external 36V bank required, (2) Powerful 9.5A charger for rapid recharge, (3) Weight 7.8 kg, (4) 2 years comprehensive onsite warranty, (5) MAX+ Series high-frequency IGBT technology. The internal battery version (NM36MX1KK11-IB) has 3x7AH batteries inside, 0.7-0.8A trickle charger, weighs 13.5 kg, carries 1 year warranty, and is MAX Series (not MAX+). Choose this model for longer runtime, faster recharge, and extended 2-year warranty coverage.
What batteries do I need and how do I connect them?
You need three identical 12V batteries (same age, capacity, type, and brand). Connect them in series: positive of battery 1 to negative of battery 2, positive of battery 2 to negative of battery 3. The free positive terminal of battery 3 connects to the UPS positive input, and the free negative terminal of battery 1 connects to the UPS negative input. Use appropriate gauge battery interconnect cables (sold separately) rated for your battery capacity and distance.
What is the maximum external battery capacity I can use?
The 9.5A intelligent charger can efficiently recharge external battery banks up to 200Ah and beyond. There is no strict upper limit, but very large banks (over 300Ah) will require proportionally longer recharge times. For such installations, we recommend consulting our technical team to ensure optimal charging configuration and performance.
What backup time can I expect with different battery capacities?
Backup time depends entirely on the capacity (Ah) of your external battery bank and the connected load. Approximate guidelines at 50% load (450W): with 3 x 12V 7Ah batteries (total 252VAh) – 10-15 minutes; with 3 x 12V 26Ah batteries (total 936VAh) – 35-50 minutes; with 3 x 12V 100Ah batteries (total 3600VAh) – 2-3 hours; with 3 x 12V 200Ah batteries (total 7200VAh) – 4-6 hours. Contact our support team for precise runtime calculations for your specific configuration.
Is this UPS compatible with a generator?
Yes, the MAX+ 1KVA is fully generator-compatible. Its wide input voltage range (118-295V) and frequency tracking capability (40-70 Hz input, 47-53 Hz synchronized) allow it to accept power from most standard sinewave generators, even when the generator output is not perfectly stable. This makes it an excellent choice for locations with frequent, extended power cuts where generator backup is used.
Does this model include an inbuilt isolation transformer?
No, this specific MAX+ 1KVA model (NM36MX1KK11) does NOT include an inbuilt isolation transformer. Isolation transformer is optional and available as an external accessory. Microtek offers a separate MAX+ variant with inbuilt isolation transformer (different SKU, higher weight of 8.6kg, and higher price point). Please verify your requirement before ordering.
What warranty coverage does this UPS carry?
This Microtek MAX+ Series UPS carries a 2-year comprehensive onsite warranty, covering manufacturing defects, component failures, and workmanship issues. Thencix enhances this with our complete in-house warranty assistance — you never need to contact Microtek directly. We handle diagnostics, service appointment scheduling, and replacement processing on your behalf. Valid GST invoice is required for warranty service.
Specification
| Brand |
Microtek |
|---|
Customer Reviews
Related Products
EZVIZ C8C 2MP Outdoor Pan/Tilt Smart WiFi CCTV Camera | Color Night Vision | AI Person Detection | 360°Coverage
Out of stock
DJI Mini 4 Pro Drone with DJI RC 2 Controller & 4K Camera
In stock
GIGABYTE B760M DS3H DDR4 Motherboard
Available on backorder
Hikvision DS-2CD1323G2-LIU 2MP Smart Dual-Light Indoor IP Dome Camera with Microphone
Out of stock
Hikvision DS-2CD1047G2-L 4MP IP Camera ColorVu – Full-Color Outdoor Bullet Camera with Audio
Out of stock
Hikvision DS-7608NXI-K1 8 Channel AcuSense 4K Network Video Recorder with Smart Analytics & H.265+ Compression
In stock
| Is Discontinued By Manufacturer |
No |
|---|---|
| Product Dimensions |
24 x 32 x 4.8 cm ,1.5 Kilograms |
| Manufacturer |
Prama Hikvision India Pvt.Ltd ,Prama Hikvision India Pvt.Ltd ,Prama Hikvision India Pvt.Ltd |
| Item model number |
DS-7608NXI-K1 |
| Country of Origin |
India |
| Packer |
Prama Hikvision India Pvt.Ltd |
| Importer |
Prama Hikvision India Pvt.Ltd |
| Item Weight |
1 kg 500 g |
| Item Dimensions LxWxH |
24 x 32 x 4.8 Centimeters |
| Net Quantity |
1 count |
| Included Components |
Main Unit ,Adapter ,HDMI |
| Brand |
Hikvision |

Reviews
Clear filtersThere are no reviews yet.