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  • New item   Uninterruptible Power Supply | Inverter | 48V DC / 230V AC | 5000VA / 3500W | Pure Sine Wave | For Boilers, Pumps and Backup Power
    New item   Uninterruptible Power Supply | Inverter | 48V DC / 230V AC | 5000VA / 3500W | Pure Sine Wave | For Boilers, Pumps and Backup Power 1
    New item   Uninterruptible Power Supply | Inverter | 48V DC / 230V AC | 5000VA / 3500W | Pure Sine Wave | For Boilers, Pumps and Backup Power 2
    New item   Uninterruptible Power Supply | Inverter | 48V DC / 230V AC | 5000VA / 3500W | Pure Sine Wave | For Boilers, Pumps and Backup Power 3

    Uninterruptible Power Supply | Inverter | 48V DC / 230V AC | 5000VA / 3500W | Pure Sine Wave | For Boilers, Pumps and Backup Power

    Code: URZ3433
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    Price 395.90 € VAT incl.
    ( 327.19 € VAT excl. )
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    This is a powerful uninterruptible power supply (UPS) with a 48V DC battery system, 230V AC output, and a pure sine wave inverter. The device is designed for critical electrical appliances, heating systems, pumps, automation equipment, servers, security systems, workshops, and other loads requiring stable backup power in the event of a mains power failure.
  • Product description

    Uninterruptible Power Supply – 48V DC / 230V AC, 5000VA / 3500W, Pure Sine Wave

    This is a powerful uninterruptible power supply (UPS) with a 48V DC battery system, 230V AC output, and a pure sine wave inverter. The device is designed for critical electrical appliances, heating systems, pumps, automation equipment, servers, security systems, workshops, and other loads requiring stable backup power during electrical outages.

    Key concept:
    The KEMOT PROsinus 5000 helps ensure uninterrupted 230V power supply when the grid voltage fails. The device automatically switches to battery power in a very short time – up to 4 ms, allowing connected devices to continue operating without significant disruption.
    Rated Power
    3500 W
    Battery System
    48V DC
    Output Voltage
    230V AC
    Output Waveform
    Pure sine wave

    Operating principle

    Under normal grid operation, the KEMOT PROsinus 5000 utilizes 190–260V AC input voltage and can charge the connected 48V batteries. The battery charging current can be set to 10A or 15A mode, depending on the connected battery system and usage requirements.

    In the event of a power outage or if the grid voltage drops outside permitted limits, the device automatically switches power to the batteries. The inverter converts 48V DC voltage into stable 230V AC power with a pure sine wave, making the source suitable for sensitive electrical and electronic devices.

    Why is pure sine wave important?
    A pure sine wave is close to the sine voltage of a standard electrical grid. It is especially important for devices with motors, pumps, fans, boiler automation, sensitive electronics, transformers, and other devices for which a modified sine wave may be unsuitable or cause additional noise and heating.

    Technical Parameters

    Manufacturer KEMOT
    Model PROsinus 5000
    Rated power 3500 W
    Rated apparent power 5000 VA
    Battery type 48V DC
    Maximum battery voltage 60V DC
    Recommended battery capacity 200 Ah
    Permissible battery capacity 50–300 Ah
    Input voltage range 190–260V AC
    Input frequency 45–60 Hz
    Output voltage AC mode: 230V ±5% / inverter mode: 230V AC ±3%
    Output frequency 50 / 60 Hz ±0.5 Hz
    Output waveform Pure sine wave
    Efficiency DC → AC ≥85%
    Battery charging current 10A / 15A
    Estimated charging time 4–14 hours, depending on battery capacity and charging current
    Switching time ≤4 ms
    Protections Overload, short circuit, overvoltage, and undervoltage
    Permissible operating temperature 0°C ... +40°C
    Permissible air humidity 10–90%

    Where is it used?

    • Heating systems – for boiler automation, circulation pumps, heating controllers, and other essential equipment.
    • Water supply systems – for water pumps, hydrophores, pressure maintenance systems, and automatic valves.
    • Security systems – for alarms, camera systems, communication equipment, and control modules.
    • Workshops and technical rooms – when backup power is needed for critical electrical equipment.
    • Individual homes and cottages – to maintain important systems during power outages.
    • Small commercial facilities – for POS equipment, routers, security, and control systems.

    Practical usage example

    For example, the KEMOT PROsinus 5000 can be used together with a 48V battery system in a home boiler room. Boiler automation, circulation pumps, and other necessary heating system components are connected to the power source.

    In the event of a power outage, the device automatically switches to battery power in up to 4 ms. This maintains the operation of essential equipment and reduces the risk of the heating or water supply system stopping due to a short-term power grid disturbance.

    Usage by requirement

    For electricians: A reliable solution for backup power systems requiring stable 230V AC output and fast switching between grid and battery power.

    For engineers/designers: A suitable choice for planning autonomous or backup electrical systems for boiler rooms, pump stations, security systems, technical rooms, and small commercial facilities.

    For individual users: Can be used at home, in a cottage, or a garage when it is important to maintain the operation of a boiler, pump, communication equipment, or other priority devices during power outages.

    For agriculture and industry specialists: Suitable for smaller technical systems, automated control cabinets, water supply equipment, communication hubs, and other equipment that cannot afford a momentary loss of power.

    Pros

    • High 3500W rated power – suitable for more powerful backup systems.
    • 5000VA apparent power – may be relevant for loads with high inrush currents.
    • 48V battery system – more efficient for higher power backup solutions.
    • Pure sine wave – suitable for sensitive and motorized devices.
    • Fast switching up to 4 ms – lower probability of operational disruption.
    • 10A or 15A charging current – adjustable according to the battery system used.
    • Overload and short circuit protection – important for safer operation.
    • 230V AC output – suitable for most common single-phase devices.

    Cons / limitations

    • Requires a 48V battery system – the device is not suitable for a single 12V or 24V battery.
    • Batteries not included – they must be selected separately based on required runtime.
    • Runtime depends on load – the higher the connected power, the faster the batteries discharge.
    • For powerful motor startup, it is necessary to evaluate inrush currents and actual load.
    • Operating temperature up to +40°C – not suitable for use in very hot or poorly ventilated areas.

    Safety and installation notes

    The uninterruptible power supply operates with dangerous 230V AC and 48V DC voltage, so it must be installed, connected, and operated in compliance with electrical safety requirements.

    • Installation and connection must be performed by a qualified electrician.
    • Before performing connection works, it is mandatory to disconnect grid and battery power.
    • It is necessary to observe proper battery polarity – incorrect connection may damage the device.
    • Batteries must be selected according to the 48V system, the permitted 50–300 Ah capacity, and the actual load.
    • The device must be installed in a dry, ventilated area where the air temperature is from 0°C to +40°C.
    • Do not exceed the 3500W rated load; inrush currents of devices must also be considered.
    • Before connecting a heating boiler, pump, or sensitive electronics, it is mandatory to check the manufacturer's requirements regarding backup power sources.

    Quick selection guide

    The KEMOT PROsinus 5000 is suitable when you need a powerful 48V backup power solution with 230V output and pure sine wave. This is relevant for heating systems, water pumps, security equipment, communication equipment, technical rooms, and other critical single-phase loads.

    Power
    3500 W
    Battery
    48V DC
    Waveform
    Pure sine wave
    Switching
    ≤4 ms
    Suitable when you need to:
    • maintain the operation of a boiler, pump, or automation during a power outage;
    • backup power with 48V batteries;
    • pure sine wave for sensitive devices;
    • a more powerful solution for up to 3500W load;
    • fast automatic switching between grid and batteries.
    Check before choosing:
    • what the actual continuous power of connected devices will be;
    • whether the inrush currents of the devices will exceed the source's capabilities;
    • how long the equipment must operate without grid power;
    • whether you have or are planning a 48V battery system;
    • whether the battery capacity will correspond to the intended load and autonomy time.
    Important reminder:
    Battery runtime is not fixed – it depends on battery capacity, condition, connected load, ambient temperature, and actual energy consumption. Before ordering the system, it is mandatory to evaluate how many hours the connected equipment must operate without grid power.

    FAQ – Frequently Asked Questions

    What kind of batteries are needed for this uninterruptible power supply?
    The device requires a 48V DC battery system. Batteries with a capacity of 50–300 Ah can be used, but the manufacturer recommends a capacity of about 200 Ah.
    Can I connect a boiler and a circulation pump?
    Yes, a pure sine wave output is generally suitable for boiler automation, circulation pumps, and other sensitive electrical equipment. However, before connection, it is recommended to check the requirements of the specific boiler or pump manufacturer.
    What does 5000VA / 3500W mean?
    5000VA indicates the apparent power, and 3500W indicates the rated active power. Practically, it is most important to ensure that the continuous connected load does not exceed 3500W.
    How long does it take for the source to switch to batteries?
    The switching time is up to 4 ms. Because of this, most connected devices can continue operation without a noticeable power outage.
    How long will the connected devices operate?
    The runtime depends on battery capacity, their state of charge, and the connected load. For example, a larger load will discharge the batteries faster than low-power automation or communication equipment.
    Is this source suitable for very powerful electrical appliances?
    It depends on the rated power and inrush current of the device. For devices with large motors, compressors, or high inrush currents, it is necessary to evaluate the load separately.

    Powerful 48V backup power source for critical 230V systems

    The KEMOT PROsinus 5000 is a practical solution when it is necessary to maintain boiler automation, circulation or water pumps, security systems, communication equipment, technical cabinets, or other critical devices during power outages.

    Due to its 3500W power, 48V battery system, pure sine wave, up to 4 ms switching time, and protection against overload and voltage disturbances, this device can become a reliable part of a backup power system at home, in a cottage, in a workshop, or in a commercial facility.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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