Stalwart Solar Energy

Stalwart Solar Energy Promoters based at Salem, India are the manufacturers of Omega Digital Home UPS brand heavy duty lithium iron phosphate battery inverters.

They also manufacture solar MPPT inverters and solar water heaters.

Overview
This is a pure sine wave stand-alone inverter/charger system combining the function of inverter and AC charger, and provides a long run-time uninterruptible power supply. Its comprehensive 4 Line LCD display provides system status, and user-friendly operation.

Key Feature

• High-frequency switching technology for compact size and light weight
• Pure sine wave output for wide range of applications and harsh environment
• Build-in Lithium Ferro Phosphate battery for long life without any maintenance
• High efficient DC-to-AC conversion minimizing energy loss
• Intelligent cooling fan control
• Input/output isolated design for the maximum operation safety
• LCD displays comprehensive operation status
• Supports Home Appliances / Office Equipment/ Lighting Equipment/ Motor-based Equipment (such as Fan,
  Mixer grinder)
• Thorough protections: Input low voltage / Overload / Short circuit / Low battery alarm / Input over voltage / Over temperature

SPECIFICATIONS

Table 1 Line Mode Specifications

MODEL	LI-1250 SW
INPUT
Input Voltage Waveform	Sine Wave – As per the Grid
Nominal Input Voltage	220AC
Low Voltage Cut Off	170Vac±7V(UPS Mode) 125Vac±7V (Inverter mode)
Low Voltage Return Voltage	175Vac±7V(UPS) 130Vac±7V (Appliances)
High Voltage Cut off	280Vac±7V
High Voltage Return Voltage	270Vac±7V
Max AC Input Voltage	290Vac
Nominal Input Frequency	50Hz
OUTPUT
Output Short Circuit Protection	Fuse
Efficiency (Line Mode)	>98% ( Rated R load, battery full charged )
Transfer Time	10ms typical(UPS) 20ms typical(Appliances)

Table 2 Inverter Mode Specifications

MODEL	LI–1250 SW
Rated Output Power	1000W
OUTPUT
Output Voltage Waveform	Pure Sine Wave (DSP)
Output Voltage Regulation	220Vac±1%
Output Frequency	50Hz
Peak Efficiency	80%
Overload Protection	5s at > 150% load; 10s at 110% ~ 150% load
Capable of starting electric motor	0.5HP
Nominal DC Input Voltage	12.8 Vdc
INPUT
Cold Start Voltage	12Vdc
Low DC Warning Voltage	11.5V
Low DC Cut-off Voltage	10.8V
High DC Cut-off Voltage	14.0V

Table 3 Charge Mode Specifications

Utility Charging Mode
MODEL	LI–1250 SW
Charging Algorithm	3-Step
AC Charging Current (Max)	15-17Amp (at Vi/p = 220Vac)
Bulk Charging Voltage	14V

Table 4 General Specifications

MODEL	Spirit 5KVA+SCC
Maintenance	Zero -Maintenance
Warranty	Onsite 4 Years
Transformer Disconnection	YES after Battery Fully Charged
Battery Life	3000 Cycles
Battery Specification	C1-100AH
Dimension (D*W*H)/ mm	140*265*320
Net Weight ,kg (MPPT model)	19

Stalwart Solar Energy Promoters Private limited, Manufacturers of Lithium Iron Phosphate Battery Inverter
2/36-1, Duraisamy Layout,
Pallapatti, Salem-636009 Tamilnadu, India

9944706699 / 7708855311

https://en.wikipedia.org/wiki/Lithium_iron_phosphate_battery

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