Sine Ups
Why Sine Ups?

The Uninterruptible Power Supply SineUPS guarantees continuous work of all the appliances connected. When a problem with the mains power supply is detected (power cut or instability), SineUPS generates a pure sinewave from the battery connected. The output voltage has the same form as the mains voltage, meaning that the loads connected works as efficiently as being powered from mains.

Why SineUPS (Uninterruptible Power Supply)?

The ideal form for AC (Alternating Current) devices is a sine wave. Most of the UPSs on the market (including the computer UPS) generate the so called Modified Sinewave, which actually is comprised of rectangular impulses and the output voltage is totally different, compared to the mains voltage.

All inductive loads (electrical motors, pumps, transformers) and and most of the specialized electronics are designed to work only with sine wave voltage. The non-sinewave power makes these loads work inefficiently (higher power consumption, heating up) as the precise electronics might even not work at all (gas boilers, pellet boilers, etc.).

SineUPS can be used to power domestic and industrial devices:
  • circulation pumps
  • gas & pellet boiler controls
  • ventilation
  • computers
  • audio, TV

SineUPS guarantees flawless operation of all kinds of loads, designed to work with voltage of 230V / 50Hz. The choice of specific model UPS depends of the rated power of the load (W) and the work time in emergency mode. First you need to calculate the total power of the device(s) you intend to power by the UPS. Choose a SineUPS mode, which nominal output power exceeds your needs.

If a power of 100W is enough for you, then you can choose whether to get model with internal battery which is enough to power a 40W load for 2 hours, or a model with external battery. The capacity of the external battery is chosen according to the work time you wish to have (see below).

SineUPS works with 12V lead-acid batteries. The models that do not have an internal battery should be connected to an external one. They are two types - serviceable and non-serviceable (encapsulated). If you will be using the device in home environment, we recommend using encapsulated battery (gel type), as otherwise it is possible that some dangerous explosive and poisonous gases will be emitted from battery's electrolyte.

In order to calculate the work time in inverter mode (when the power fails) you need to know the power of the load - P (W) and the battery capacity C (Ah). Then the work time of SineUPS in hours t (h) is:

t = 12 x C / P

For instance, a circulation pump rated 100W and external battery with 60Ah capacity will work 12 * 60 / 100 = 7.2 hours.

This time is approximate as lots of factors will affect the operation of the devices. For example the battery capacity depends on the charge, ambient temperature and age.

If you want to calculate the battery capacity that you need C (Ah), then based on the load's power P (W) and the work time t (h):

C = t x P / 12

For instance for a 100W circulation pump and expected work time of 4 hours you need a battery with capacity of 4 * 100 / 12 = 33Ah.

SineUPS is completely automated device, intelligently controlled by a microcontroller. It automatically switches between mains and inverter mode, also charges the battery when mains power is present. The device has the following protections:
  • reverse polarity external battery connection
  • overload and short-circuit on the output in inverter mode
  • external fuse for short-circuit in mains mode
  • low and high battery voltage

No. With no connected battery, the device can not perform its purpose - protect the connected load in case of power failure.

Yes! We can offer you SineUPS model S100a+, which besides the internal battery has leads for connecting external battery. When an external battery is connected, the internal one is automatically disconnected, so a different charge current is provided for the different batteries. When the external battery is disconnected, The UPS automatically switches to the internal battery.