Cressall Resistors AC6 Loadbank
Cressall Resistors has produced a completely self-contained new load bank for testing generator sets. The unit is ideal for use by hire shops, local authorities and construction firms, where its rugged build and easy handling will appeal to anyone managing a fleet of such generators. The new model, branded the AC6, is intended for testing 220/240V supplies up to 6kW, in adjustable steps of 333W. The AC6 joins Cressall's range of portable units for testing AC and DC systems including batteries, UPS systems and standby generators up to 100kW.
The unit's key features are ease of use and portability. The clear controls provide easy to read indications of voltage, current and frequency, making it straightforward to see what adjustments need to be made to the unit being tested.
A one-piece aluminium casing helps keep the weight down to just twelve kilograms and the hinged lid of the unit is fitted with a carrying handle. The integral 1.5 metre cable and connector, which fits all small gen sets and is rated to CEE IEC 60309-2, means it's impossible for the unit to be taken on site without the appropriate connectors. The connectors, cable and controls of the unit are located beneath a sturdy hinged hood, which again serves to keep the entire unit together permanently. Brief-case size dimensions of 550 by 495 by 220mm and IP20 ingress protection make the unit ideal for field use.
The unit is supplied as standard in a 220-240 VAC version, with a rated frequency of 50-60Hz. An alternative dual-voltage model also features 110-120 VAC functionality for use in countries such as the UK where the lower voltage is mandatory for site equipment. Easy control is provided by six toggle switches and, on the dual-voltage version only, a voltage selector switch.
The unit is fan cooled and the fan supply is taken from the test load itself. As a result, no external power supply is needed, which again makes the unit ideal for site work. Built-in over-temperature protection helps ensure the unit's reliability. The AC6 is CE marked and RoHS compliant and, as a result, is suitable for use in the UK and abroad. A built in voltmeter of 0-300V and a built in ammeter of 0-100A complete the unit.
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