Low Frequency Inverter. – Atwin Engineering & Construction LTD https://atwinengineering.com "Smart Solutions for Water, Energy & Beyond." Fri, 13 Mar 2026 08:30:48 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 https://atwinengineering.com/wp-content/uploads/2024/04/cropped-favicon-01-32x32.png Low Frequency Inverter. – Atwin Engineering & Construction LTD https://atwinengineering.com 32 32 Felicity 5KVA 48V 4KW Low Frequency, Pure Sine Wave, Built in MPPT Hybrid Inverter https://atwinengineering.com/product/felicity-5kva-48v-4kw-low-frequency-hybrid-inverter/ https://atwinengineering.com/product/felicity-5kva-48v-4kw-low-frequency-hybrid-inverter/#respond Thu, 01 Aug 2024 06:18:34 +0000 https://atwinengineering.com/?post_type=product&p=7240 Bypass charging function, AC charge available When the unit is off. ·90-280V AC Wide input voltage. ·Grid electricity and battery power priority is optional. ·Higher charging current and adjustame. ·Communicate with felicity MPPT charge controller. ·Intelligent protection, higher class of security.

Fast operation and maintenance
Overall Safety Design
Communicate with MPPT
IVPM Inverter SPECIFICATIONS
Model IVPM2512 IVPM2524 IVPM3524 IVPM3548 IVPM5024 IVPM5048 IVPM7548 IVPM10048
Rated Output Power(VA) 2500VA 2500VA 3500VA 3500VA 5000VA 5000VA 7500VA 10000VA
Rated Output Power(W) 2000W 2000W 2800W 2800W 4000W 4000W 6000W 8000W
Nominal DC Input Voltage 12V 24V 48V 24V 48V
Input Voltage Waveform Sinusoidal(Utility or generator)
Nominal Input Voltage 220Vac
Low Line Disconnect 170±7Vac(UPS) 90±7Vac(APL)
Low Line Re-connect
AC Input Range		 180±7Vac(UPS) 100±7Vac(APL)
High Line Disconnect 280±7Vac
High Line Re-connect 270±7Vac
Max AC Input Voltage 280Vrms
Nominal Input Frequency 50Hz/60Hz
Low Line
Frequency Disconnect		 40±1Hz
Low Line
Frequency Re-connect		 42±1Hz
High Line
Frequency Disconnect		 65±1Hz
High Line
Frequency Re-connect		 63±1Hz
Output Voltage Waveform As same as input waveform
Over-Load
Protection(SMPS load)		 AC 30A Air switch protection
Output Short
Circuit Protection		 AC 30A Air switch protection
Efficiency(Line mode) ≥95% (Rated R load, and battery is fully charged)
Transfer Time (AC to DC) 15ms (typical)
Transfer Time(DC toAC) 15ms (typical)
Pass Through
Without Battery		 No
Max Bypass
Overload Current		 AC 30A AC 63A
Utility Charge Mode Specifications
Nominal Input Voltage 220Vac
Input Voltage Range 90~280Vac
Nominal Output Voltage Dependent on battery type
Max Charge Current 40A 50A 60A 80A
Charge Current Regulation 0A~40A 0A~50A 0A~60A 0A~80A
Battery Initial Voltage Circuit breaker
Charger Short Circuit AC30A AC 63A
Breaker Size Dependent on battery type or Self-defined
Over Charge Protection Yes
]]> https://atwinengineering.com/product/felicity-5kva-48v-4kw-low-frequency-hybrid-inverter/feed/ 0 7.5Kva 48V 6kw Solar Inverter,Low Frequency, Pure Sine Wave, No Built-In MPPT https://atwinengineering.com/product/7-5kva-48v-6kw-solar-inverterlow-frequency-pure-sine-wave-no-built-in-mppt/ https://atwinengineering.com/product/7-5kva-48v-6kw-solar-inverterlow-frequency-pure-sine-wave-no-built-in-mppt/#respond Thu, 25 Jul 2024 06:36:55 +0000 https://atwinengineering.com/?post_type=product&p=7203 RS-232 Communication interface

Full function LCD and LED display

AC input and output protect switch

Build in battery reverse polarity protection

Automatic AC and PV charger after shutdown

Adjustable charge current and output currency

Generator has function of automatic control on and off

Build in battery temperature compensation interface

Low frequency high reliable pure sinewave circuit architecture

Optional 8 types of batteries, three-stage intelligent charger

]]> https://atwinengineering.com/product/7-5kva-48v-6kw-solar-inverterlow-frequency-pure-sine-wave-no-built-in-mppt/feed/ 0 2.5KVA 12V Inverter 2Kw, Low Frequency, Pure Sine Wave, No built-in MPPT https://atwinengineering.com/product/2-5kva-12v-inverter-2kw-low-frequency-pure-sine-wave-no-built-in-mppt/ https://atwinengineering.com/product/2-5kva-12v-inverter-2kw-low-frequency-pure-sine-wave-no-built-in-mppt/#respond Tue, 23 Jul 2024 08:19:31 +0000 https://atwinengineering.com/?post_type=product&p=7193 Empower your off-grid lifestyle with the  2.5KVA 12V Inverter Charger, delivering a robust 2KW of power for your essential electrical needs.

Key Features:

  1. Inverter Charger:
  • 1 Unit of 2.5KVA 12V Inverter Charger (2KW)
    • Efficient energy conversion to power a range of appliances and devices.
    • Specifically designed for off-grid applications.
  1. Powerful Output:
  • Provides a substantial 2KW of power for running larger appliances and multiple devices simultaneously.
  • Ideal for off-grid homes, cabins, and other remote locations.
  1. 12V System:
  • Operates on a 12V DC system, offering flexibility in battery configurations.
  • Compatible with various battery types, including lead-acid and lithium-ion.
  1. Reliable Power Source:
  • Ensures a stable and clean power source for sensitive electronics.
  • Supports continuous operation during power outages.
  1. Inverter and Charger Functionality:
  • Acts as both an inverter for converting DC to AC power and a charger for replenishing batteries.
  • Versatile for different power needs in off-grid environments.
  1. User-Friendly Interface:
  • Easy-to-use controls for monitoring and adjusting settings.
  • LED indicators for status updates and system diagnostics.
  1. Off-Grid Solution:
  • Suitable for powering off-grid homes, cabins, RVs, and other remote locations.
  • Enables users to harness solar or battery power for essential electrical needs.
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