300-VA Pure Sine-Wave Inverter Withstands Harsh Conditions

Microprocessor-controlled, high-frequency pulse-width-modulation (PWM) technology drives the PSI 300 series of dc-ac inverters, enabling 300-VA pure sine-wave output voltage. Full encapsulation with a thermally conductive, military-grade silicon rubber compound ensures immunity to high shock and vibration levels, as well moisture and airborne contaminants, says developer Absopulse. The inverters provide a stable sine-wave output of 115 V ac continuous at 60 or 400 Hz, or 230 V ac continuous at 50 Hz. They’re rated for continuous operation at +70°C when installed on an appropriately sized heat-sinking surface. Operation is from a 24-, 48-, 110-, or 125-V dc line voltage. Output regulation is ±2% combined across all input line and load condition. Input and output are filtered for low noise. The input meets EN55022 Class A conducted and radiated requirements with wide margins. Options include an output-fail alarm (Form C) and remote shutdown or enable. The PSI 300 inverters suit the powering of sensitive electronic loads in mining, transportation, oil rigs, and other severe environments.

ABSOPULSE ELECTRONICS LTD.