Sine-wave inverter

ABSOPULSE Electronics’ CSI 1K-24 / 230-3XD3-IP66 provides a water, dust, sand, fire and explosion-proof pure sine wave AC-output solution for transportation and other heavy-duty applications.

The microprocessor-controlled high frequency PWM inverter delivers 230Vac continuous at 50Hz and accepts a 24Vdc nominal input voltage (21Vdc-30Vdc range). Input and output are via sealed circular connectors, cable glands or custom connections. Filtering on the input and output contributes to low output ripple and noise.

The input meets the requirements for EN55022 Class A with wide margins. Comprehensive electronic protection includes 2250Vdc input-output isolation, inrush current limiting and reverse polarity protection. The unit complies with EN60950-1, UL458 and corresponding CSA international safety standards.

The inverter is packaged in three IP66-rated die cast aluminum enclosures mounted on a base plate. The internal inverter modules are fully ruggedized and the boards are conformal coated for protection from high levels of shock and vibration.

Cooling is by internal conduction to the walls of the IP66 enclosure and by baseplate to an external chassis or cabinet wall, with additional convection via the outside surface. This enables operation within a -25°C to 55°C temperature range for full specification.

This 1kVA inverter is suitable for operation in transportation, heavy industry, mining, military, marine, telecom, and oil and gas applications where resistance to water, sand, metallic dust, dust, oil, fire and other factors is essential. The unit is explosion proof, ensuring that sparks originating from within the enclosure will not ignite gases, dust and other flammable elements in the air surrounding it.

Depending on the target operating environment, ABSOPULSE IP66 (and IP67) rated inverters have built-in vents that ensure that pressure inside the enclosures is equalised, strain on connectors is minimised and the environmental seal remains impermeable.