DA12A-500A Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
The Pacific Scientific DA12A-500A is part of the Redi-Line Electric Generators series and provides a continuous output power of 500 watts with a surge output power of 750 watts. It operates at an input voltage of 12 VDC, delivers an output voltage of 120 VAC at 65 Hz, and weighs 26 pounds. The generator features a sine wave output and measures 16.25 inches in length, 5.18 inches in diameter, and 5.5 inches in height.
Internal Product Review
The DA12A-500A is a Pacific Scientific Redi-Line electric generator that delivers 500 W continuous output at 120 VAC. Sine wave output at 65 Hz gives the generator clean, stable power quality that stands out in technical applications. Strong surge performance up to 750 W is a key advantage for demanding startup conditions.
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Product Description:
The DA12A-500A is a DC-to-AC generator produced by Pacific Scientific and listed in the Redi-Line Electric Generators series. It provides a portable power source for instrumentation, test fixtures, or light industrial tools that must run from a 12-volt battery bank rather than an AC utility line. By producing a single-phase output, the device allows field equipment to operate with standard plugs without requiring extensive wiring changes. This configuration is suited to mobile installations, service vehicles, marine systems, and other locations where battery power is available but conventional AC power is not. The enclosed assembly also allows the generator to be positioned near the connected battery bank, which can help keep the DC cable run short.
During steady operation, the generator supplies 500 W of real power and supports a load current of 4.5 A. It operates from a battery bus of 12 VDC, while the internal regulation loop is adjusted around a nominal input of 12.6 VDC to maintain adequate headroom as the cells discharge. The alternator and inverter stages create a 120-volt RMS output, so connected circuits receive 120 VAC. The generator produces a true sine wave, which minimizes harmonic heating in motors and transformers compared with a modified waveform. Output frequency is maintained at 65 Hz, supporting loads that require stable timing or consistent motor speed. The regulated output also helps connected equipment continue operating as battery voltage changes during normal discharge.
Short-term demand is supported by a surge rating of 750 W, with peak line current briefly reaching 7 A so inductive devices can start without nuisance interruptions. The assembly weighs 26 lb, making it manageable for installation on service vehicles, mobile equipment, or marine bulkheads. Its cylindrical body measures 5.18 in in diameter and connects to a housing that stands 5.5 inches tall and extends 16.25 inches along its axis. This narrow cylindrical profile allows the unit to fit in equipment spaces where lateral clearance is limited. The available surge capacity supports the temporary inrush associated with compressors, lamps, relay banks, and similar loads. After startup, these devices can continue operating within the generator’s continuous power and current limits.
