Offline UPS – Stepped Sine Wave
Cost-Effective Microcontroller-Based Stepped Sine Wave Offline UPS for Commercial, Industrial & Everyday Power Backup Applications
- Stepped Sine Wave Output
- Microcontroller-Based Control
- MOSFET / IGBT Design
- Wide Input Voltage Window
- Reliable Battery Backup
Key Highlight

Simulated
Wave Output

DSP Based
PWM Technology

Fast Battery
Charging

Wide Inpur
Voltage Range

Intelligent Battery
Management

Auto
Restart

Overload
Protection

Short Circuit
Protection

Eco Friendly
Operation

Stylish Compact
Body

Low noise
Performance

Energy Saving
Design
Product Overview
The TANIESH Offline UPS – Stepped Sine Wave is an economical and dependable power backup solution designed to deliver uninterrupted power during mains failures and voltage fluctuations. Developed using advanced Microcontroller-Based PWM Technology and MOSFET/IGBT switching, it offers stable stepped sine wave output for a wide range of commercial, industrial, and office applications.
Engineered for long-lasting performance, the UPS incorporates intelligent battery charging, automatic voltage regulation, and a wide input voltage range to ensure continuous operation during unstable power conditions. Its rugged construction, user-friendly design, and reliable protection features make it an excellent choice for businesses seeking efficient backup power at an affordable investment.
Available in multiple capacities with Single Phase and Three Phase configurations, the TANIESH Offline UPS supports critical equipment across offices, retail establishments, telecom networks, educational institutions, and industrial facilities.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Offline UPS – Stepped Sine Wave |
| Technology | Microcontroller-Based PWM Technology |
| UPS Type | Offline UPS |
| Output Waveform | Stepped Sine Wave |
| Power Range | 0.5 kVA to 40 kVA (Model Dependent) |
| Switching Technology | MOSFET / IGBT Design |
| Input Voltage | 415V ±25% (Three Phase Models) |
| Input Frequency | 50Hz ±3Hz |
| Output Voltage Regulation | ±1% |
| Output Frequency | 50Hz ±0.5Hz |
| Power Factor | 0.8 Typical |
| Battery Voltage | 12VDC to 360VDC (Model Dependent) |
| Battery Charging | Intelligent Constant Voltage / Constant Current Charging |
| Recharge Time | 6–10 Hours (Depending on Battery Capacity) |
| Automatic Voltage Regulation | Built-in AVR |
| Display | LCD Display (Optional) |
| Cold Start | Supported |
| Transfer Time | Fast Automatic Transfer During Power Failure |
| Efficiency | Up to 95% |
| Protection Features | Battery Protection, Charger Protection, Overload Protection, Short Circuit Protection & Inverter Protection |
| Operating Temperature | 0°C to 40°C |
| Relative Humidity | Up to 95% Non-Condensing |
| Acoustic Noise | < 60 dB |
| Applications | Computers, Offices, Retail Stores, POS Systems, Telecom Equipment, Networking Devices, CCTV Systems, Educational Institutions & Industrial Applications |
- Stepped Sine Wave Output Technology
- Advanced Microcontroller-Based Digital Control
- High-Speed MOSFET / IGBT Switching Circuit
- Wide Input Voltage & Frequency Tolerance
- Built-in Automatic Voltage Regulation (AVR)
- Intelligent Constant Current Battery Charging
- Optional LCD Status Display
- Fast Transfer Time During Power Failure
- Cold Start Capability
- Available in Single Phase & Three Phase Models
- Offices & Commercial Buildings
- Desktop Computers
- Workstations
- Small Servers
- Networking Equipment
- Retail Stores & POS Systems
- Educational Institutions
- Telecom Equipment
- CCTV & Security Systems
- Industrial Control Panels
- Small Manufacturing Units
- Banking & Financial Offices
Testimonials
"A dependable backup solution with excellent performance and low maintenance costs."
Kathick"Professional installation and responsive technical assistance made the entire process hassle-free."
AnbuFrequently Asked Questions
1. What is a Stepped Sine Wave Offline UPS?
A Stepped Sine Wave Offline UPS provides backup power using a stepped waveform, making it suitable for most computers, office equipment, networking devices, and general commercial applications.
2.What capacity options are available?
The TANIESH Offline UPS is available in multiple capacities ranging from 0.5 kVA to 40 kVA, depending on the selected model.
3. Does it include Automatic Voltage Regulation?
Yes. Built-in AVR helps stabilize input voltage and protects connected equipment from power fluctuations.
4. Is it suitable for industrial applications?
Yes. Selected models are designed for commercial and industrial environments, including offices, telecom, retail, security systems, and manufacturing facilities.
5. Why choose TANIESH Offline UPS?
TANIESH Offline UPS systems combine reliable backup performance, intelligent battery charging, durable construction, and dependable after-sales service, making them a practical solution for everyday business power protection.

"Our office operations continue without interruption during power failures. The UPS has been extremely reliable."
Shakthi