1U Rack Mount Pure Sine Wave Inverter 1kVA

RM-PSW1KVA Series 1000VA – 850W

The RM-PSW1kVA Series are 1U Rack Mount 1kVA/850W sine-wave inverters. 12V/24V/48VDC models with 230 or 120VAC output voltage options. The Bypass / Transfer function, allows for automatic transfer of the load ( in the event of inverter or DC Failure ) from the inverter to the utility AC supply, thus providing a high level of system reliability. A range of protection features such as ‘Auto shutdown’ that prevents total battery discharge and the extremely low input current draw when output is not powering equipment ensures maximum battery capacity at all times. The voltage is user selectable: 220/230/240V RMS  3%, allowing for the best setting for customer equipment. In normal operation these inverters isolate the load from wide voltage swings, transients and noise usually present in the mains and which can cause equipment reliability problems. Output voltage and frequency are programmable from the front panel, as well as from the RS232 communications interface which can be used for remote monitoring.

Main Features:

  • R Load Pure sine wave output (THD < 3%)
  • Digital display
  • Bypass function (STS)
  • Output frequency: 50 / 60Hz switch
  • RS-232 interface / Wire connection to PC
  • SNMP function is available! Replacing RS-232 function!! Monitoring the inverter wherever you are!!
  • Wired Remote control (optional)
  • Loading and Temperature controlled cooling fan
  • Advanced microprocessor
  • Protection :
    • Input Undervoltage
    • Input Overvoltage
    • Overload
    • Short circuit
    • Low battery alarm
    • Over temperature


  • Computers, communications & control equipment, SCADA, test equipment, field instrumentation, factory automation systems, networking and telecom equipment.
  • Power tools, drills, air compressors
  • Lamps, fluorescent lights, vacuum cleaners, microwave ovens, refrigerators
  • Televisions, home theaters, game consoles, satellite equipment


Dimensions (mm)
L x W x H
416.8 x 424 x 44


ModelPowerInput VoltageOutput Voltage
RM-PSW121KVA (1U)850W (1KVA)12V100/110/115/120V(Switch Selectable) RMS±3%
RM-PSW241KVA (1U)850W (1KVA)24V100/110/115/120V(Switch Selectable) RMS±3%
RM-PSW481KVA (1U)850W (1KVA)48V100/110/115/120V(Switch Selectable) RMS±3%
RM-PSW121KVAE (1U)850W (1KVA)12V200/220/230/240V(Switch Selectable) RMS±3%
RM-PSW241KVAE (1U)850W (1KVA)24V200/220/230/240V(Switch Selectable) RMS±3%
RM-PSW481KVAE (1U)850W (1KVA)48V200/220/230/240V(Switch Selectable) RMS±3%

Ask for Assistance

Selecting the right power supply for your application is not a small task. Let our technical sales engineers guide you through the process of choosing the right solution for your needs.

Below some parameters usually required to size and select the right power supply:

  • Power & control requirements
  • Output & Input Voltage / Multioutput Voltage / Variable Voltage
  • Redundancy level
  • Mounting
  • Inrush Current
  • Environmental specifications (Temperature, altitude, vibration, shock)
  • Specific Industries Standards (Railway, Military, Medical)
  • Terminals

Contact Our Team

Contact our team of experienced engineers to discuss your unique power conversion and backup needs. We offer a wide range of highly reliable components that can be integrated and customized to create a solution that meets or exceeds your requirements.

For power automation systems please contact us at power.systems.automation@heliosps.com.au

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