The EC derivative of the Estoc fan is available in the same sizes and formats as the AC version, and covers a range of duties up to 4.3 cubic meters per second flow rate and 840 pascals. The units are fitted with high efficiency EC motors which are IP54 rated and suitable for 400V three phase, 50Hz and 60Hz operation. The speed is infinitely variable via a 0-10V switch signal.
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