Power That
Never Fails.
From hospital servers to home appliances — ESSMA engineers power solutions that withstand anything Bengaluru's grid throws at them.
End-to-End Solutions
Complete Power Ecosystem
Engineered in Bengaluru for uninterrupted residential, commercial, industrial, and automotive performance.
Online Double Conversion UPS
Built-in Galvanic Isolation Transformer for 100% electrical isolation. Zero millisecond transfer time for IT server racks, medical diagnostic clinics, and CNC machinery.
View 1KVA–7.5KVA ModelsHome & Office Inverters
100% Pure Sine Wave for home appliances, inverter ACs, and electronics.
Tubular & Lithium Inverter Batteries
Deep-discharge tall tubular (150Ah–220Ah) and ultra-fast charging LiFePO4 Lithium battery packs.
Automotive Batteries
High cranking power for cars, commercial trucks & tractors with 1-year direct warranty.
Off-Grid Solar Systems
Free daytime solar power & battery storage for 100% free nighttime backup.
Servo Stabilizers
Stepless ±1% precision voltage regulation & spike protection.
Our Expertise
Our Services
Comprehensive power solutions engineered for homes, businesses, and industrial deployments.
100% Card-Level PCB Repair
Component-level diagnosis and circuit repair for DSP control boards, IGBT modules, and inverter cards. We fix to the component level to ensure 10+ year longevity without expensive unit replacements.
4 Years Direct Warranty
Complete peace of mind with 48 months of direct manufacturer warranty coverage, quick on-site service, and genuine factory support.
UPS & Inverter Systems
Pure Sine Wave inverters and Online double-conversion UPS systems. Available with deep-cycle Tubular batteries or modern LiFePO4 Lithium battery packs.
Off-Grid Solar Solutions
Complete solar engineering. Direct daytime solar generation & deep-discharge battery storage for 100% free nighttime backup.
Automotive & Commercial Batteries
Heavy-duty batteries for cars, commercial trucks, tractors, and fleet equipment with high cranking amps, deep vibration protection, and 1-year direct warranty.
Installation & 24/7 AMC
Expert on-site installation, load audits, annual maintenance contracts (AMC), and emergency technician dispatch across Bengaluru.
Our Catalog
Flagship Systems
UPS & InvertersPure Sine WaveESSMA 1.2KVA / 12V UPS
UPS & InvertersPure Sine WaveESSMA 1.5KVA / 12V UPS
UPS & InvertersPure Sine WaveESSMA 1KVA / 12V UPS
Engineered for Zero Compromise
See how ESSMA’s 30-year Bengaluru factory engineering compares to standard market power backups.
| Engineering Benchmark | Standard Market UPS | ESSMA Engineered |
|---|---|---|
Waveform Purity | ✕Square / Modified Wave (Causes appliance humming & wear) | ✓100% Pure Sine Wave (0% THD, silent, safe for medical/IT) |
Switching Technology | ✕Relay 15–20ms (Computers reboot, lights flicker) | ✓IGBT + DSP Microsecond Switch (< 2ms / 0ms Online) |
Service & Repair Policy | ✕Full Board Replacements (Costly & frequent unit write-offs) | ✓100% Card-Level PCB Repair (Component diagnosis, 10+ yr life) |
Electrical Isolation | ✕Shared Ground (Passes neutral noise & surges to equipment) | ✓Built-in Galvanic Isolation Transformer (100% grid isolated) |
Direct Warranty | ✕1–2 Years via Retail Middlemen (Delays & fine print) | ✓4 Years Direct Manufacturer Warranty (Bengaluru Factory) |
Solar & Battery Flexibility | ✕Lead-acid only, no off-grid solar logic | ✓Off-Grid Solar Ready + Tubular & Lithium (LiFePO4) Support |
Need a custom engineering recommendation for your facility?
Direct load audit & factory pricing from our Bengaluru engineering team.
Interactive Tool
What Power Do You Need?
Power Load Calculator
Dial in your appliances — we'll recommend the right system.
Off-Grid Solar & Battery Savings Estimator
See how much you save by switching to an ESSMA Off-Grid Solar & Battery System. Power your daytime loads directly with free solar energy and store power in deep-cycle ESSMA batteries for 100% free nighttime electricity!
Money saved on utility electricity bills over 36 months of off-grid solar energy.
Online UPS vs Inverter vs DG Set
Compare power backup technologies to select the perfect solution for your load.
ESSMA Online UPS
ESSMA Inverter
Diesel Generator
| Feature / Parameter | ESSMA Online UPS | ESSMA Inverter | Diesel Generator (DG) |
|---|---|---|---|
| Switchover Transfer Time | < 2 ms (Zero Gap) | 10 - 20 ms (Short Lag) | 15 - 45 Seconds |
| Output Waveform | 100% Pure Sine Wave | Pure Sine Wave | Fluctuating / High THD |
| Noise Level | Silent (< 40 dB) | Silent (< 35 dB) | Very Loud (> 85 dB) |
| Running Cost per Hour | Low (~ ₹8/hr) | Low (~ ₹6/hr) | Very High (~ ₹180/hr) |
| Maintenance Requirement | Low (Annual Check) | Very Low (Water Fill) | High (Frequent Oil/Filters) |
| Suitable For | Servers, Medical, ICUs | Homes, Shops, Offices | Heavy Industrial Machinery |
Trusted by Industry Leaders & Homeowners
Real feedback from clients across Bengaluru relying on ESSMA engineering.
"ESSMA Online UPS has been backing our hospital servers for 5 years without a single second of downtime."
Dr. K. R. Nambiar
Medical Director, Bengaluru Health Care
"Exceptional build quality and prompt service. The tubular battery backup lasts way beyond our expectations during heavy rain cuts."
Sanjay Mehta
Managing Director, Apex Tech Solutions
"29 years of brand trust is evident. Their technical team configured our entire factory solar servo stabilizer setup flawlessly."
Venkatesh Prasad
Plant Operations Head, Peenya Industrial Area
Technical Guides & Knowledge Base
Power Insights & Guides
Data Center & Server Room UPS Redundancy Explained: N+1 vs 2N Architecture
Master enterprise power redundancy architectures for IT server rooms, cloud data centers, and network operations centers (NOC) in Bangalore.
Why Buying Directly from a UPS Manufacturer in Bangalore Saves You 30-40% on Costs
Discover the financial, technical, and warranty advantages of purchasing power backup systems directly from a local Bengaluru manufacturer instead of multi-tier retail dealers.
Elevator & Lift Inverter Backup Systems: Emergency Power for Bangalore Apartments
How Elevator UPS and Automatic Rescue Devices (ARD) keep passenger lifts running safely during power cuts in Bangalore residential apartments and commercial towers.
Got Questions?
Frequently Asked Questions
What is the difference between an Online and Offline UPS?
An Online UPS provides power continuously from its inverter, ensuring zero transfer time during a power cut. This is essential for sensitive equipment like servers and medical devices. An Offline (or Line-Interactive) UPS switches to battery power only when the main power fails, resulting in a slight transfer delay (usually a few milliseconds), which is fine for standard desktop computers and home appliances.
How do I calculate the backup duration I need?
Backup duration depends on the total load (in watts) and the battery capacity (in Ah). A simple formula is: Backup Time (hours) = (Battery Voltage × Battery Capacity in Ah × Inverter Efficiency) / Total Load in Watts. For example, a 12V 150Ah battery with a 400W load: (12 × 150 × 0.8) / 400 = 3.6 hours. Our experts can help you calculate the exact requirement based on your specific appliances.
Do you offer installation and after-sales support?
Yes, we provide end-to-end services. From site inspection and load calculation to professional installation and prompt after-sales support, our dedicated service network across South India ensures your systems run perfectly.
Can I upgrade my existing inverter to a solar system?
Absolutely. Our solar-ready home and office inverters are designed for easy integration with solar panels. You can start with a grid-tied setup and seamlessly switch to a hybrid solar setup as your energy needs evolve.
What is a Pure Sine Wave UPS, and why do I need it?
A Pure Sine Wave UPS provides clean, stable, and distortion-free electricity that mirrors the grid’s output. It is crucial for sensitive electronics, appliances with motors (like fridges and fans), and IT servers to prevent hums, overheating, or permanent hardware damage.
What happens during a power overload or short circuit?
All ESSMA systems feature rugged, multi-layer auto-protection. In the event of a severe overload or short circuit, the system will automatically trip to protect both the connected appliances and the UPS itself, requiring a simple reset once the load is normalized.
Ready to Secure Your Power Supply?
Talk to our engineering team. Get a customized power backup plan for your home or business — no cost, no pressure.