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Read our privacy policyThe Triangle IWS3187 is an electric shutter operator designed for use with Triangle single-panel industrial exhaust or intake shutters. It provides powered opening and closing of shutter blades when wired to a 115 V or 230 V single-phase supply, automating airflow control in wall- or fan-mounted ventilation applications. Durable and compatible with a range of IWS/RIWS shutter sizes. The IWS3187 enhances ventilation system performance and convenience.