AJ Series Sine Wave Inverters

The AJ series consist of pure sine wave inverters that convert the battery voltage to AC voltage for all AC devices.

The AJ series offer:

• a range from 275 to 2400VA (P30)

• a high and steady efficiency

• an outstanding overload capacity, thanks to the combined use of a toroidal transformer and a MOS power stage

• a digital regulation and microprocessor controlled

• an electrical supply to any kind of electrical device

• a complete internal protection of the inverter (overload, overheat, short-circuit, reverse polarity)

• an adjustable stand-by level on a large range and from a very low level (optional for AJ 275-12, 350-24 and 400-48)

All the AJs in 12 and 24 V are certified according to the norm ECE-R 10 (E24)

For more information download the AJ Series brochure (PDF)


SI Series Sine Wave Inverters

The SI series consist of "high end" pure sine wave inverters for AC voltage systems, and even allow to create a real 3-phased grid with 3 SI, from the 1200W unit. You can use the SI for any AC system in 230Vac (also in 115Vac/60Hz on request, up to 2300W).

The SI benefits from our long experience in delivering a "one step ahead technology".

The SI series offer:

• a high and steady efficiency

• an outstanding overload capability, thanks to the combined use of a toroidal transformer and a MOS power stage

• an ultra-fast regulation

• an electrical supply to any kind of device

• a complete internal protection of the SI (overload, overheat, short-circuit, reverse
  polarity)

• a stand-by level adjustable on a large range and from a low threshold on no noise thanks to HF-switching > 20 kHz

• the possibility to assemble 3 inverters (min. SI 1200) in a 3-phased 3 x 400V stand-
  alone grid

• an optional solar charge controller for solar powered systems (only with SI 600 and SI 800)

A 19" rack range is also available from 600 to 5000W (ask for option SIxxxxIND or HPSI series).

Option TWINPOWER:
From 1200W there is a choice between a stand-by (load detection adjustable from 0,3 to 20W) and the unique TWINPOWER option.  The TWINPOWER option allows the permanent use of very small loads (like security and alarm systems), with an outstanding efficiency 10 times higher than any other inverter and a no-load consumption < 0,5W.

For more information download the SI Series brochure (PDF)

XP Compact Series

The XP Compact series consist of fully automatic pure sine wave inverters with battery chargers and transfer systems.  The inverter converts the battery voltage to 220V AC voltage the high power charger supplies charge current to the battery the automatic transfer system manages the available power

The XP Compact benefits from our "one step ahead" technology in the field of inverters.

The XP Compact Series offer:

• a high and steady efficiency

• an outstanding overload capability, thanks to the combined use of a toroidal transformer and an oversized MOS power stage

• an ultra-fast regulation and microprocessor control
  an electrical supply to any kind of appliance

• a fast transfer relay

• a 4 STAGE (I/U/Uo/equalizing) battery charger with Power Factor Correction (PFC)
  a potential free contact for alarm purpose if the remote control is not used (default settings)

• programmable with the optional remote control RCC-01

• a complete internal protection of the XP COMPACT (overload, overheat, short-circuit, reverse polarity)

• a stand-by level adjustable on a large range from a very low load detection
  no noise thanks to HF-switching > 20kHz

• battery cables mounted

• easy wall mounting by 4 external screws

OUTSTANDINGLY POWERFUL! The XP COMPACT has been designed to stand overloads up to 40% over its nominal power during 30 minutes.

For more information download the XP Compact Series brochure (PDF)

XTender Series
The Xtender series provides an unmatched freedom of use thanks to its many functions. In a basic application, it offers together the functions of inverter, battery charger, transfer system and assistance to the source. These functions can be combined and controlled in a totally automatic way for an exceptional comfort and an optimal management of the energy available.

Its programmable auxiliary contacts allow as well the interconnection with existing systems or the implementation of extended functions. Fully programmable by means of its remote control, it enables the update of the software, thus making it an upgradeable product to which new functions may be added further on. By the implementation of several units, it is possible to create a 3-phase source or to set them in parallel to increase the power available. Up to 9 inverters of the Xtender series shall therefore be combined together.

Features and performances:

• True sine wave voltage

• Reliable and silent with any kind of load

• Outstanding overload capabilities

• Function Smart-Boost for assistance to the source even with difficult loads

• Automatic reduction of peak loads (power shaving)

• Multi-stage programmable battery charger with PFC

• Stand-by level adjustable over a large range and from a very low threshold

• Ultra-fast transfer relay

• Control by digital signal processors (DSP)

• High efficiency

Function Smart-Boost
The function Smart-Boost enables to add the inverter power to another source, like for instance a genset or the shorepower, even in case of asymetric loads. It is possible to add an Xtender to almost any other existing inverter in order to increase the power available.

For more information download the XP Compact Series brochure (PDF)

SPI is a distributor of the complete range of Studer Inverters. Please contact us for further information regarding these products.