1.1 These requirements cover submetering equipment and open and enclosed type current sensors intended for factory or field installation within the wiring space of enclosures for switches or overcurrent devices. Installation is in accordance with the National Electrical Code, ANSI/NFPA 70 and the Canadian Electrical Code (CE Code), CSA C22.1. These requirements also cover “Service Entrance” enclosed-type current sensors intended for indoor and outdoor use.
1.2 These current sensors are rated for use in a maximum 250 V, 600 V, or 1000 V line-to-line circuit or in a maximum 1500 Vdc circuit. The frequency measurement capability of the sensors is governed by the stated frequency.
