Page 207 of Current Catalog by Moeller Electric USA

zev electronic overload relay the ultimate motor protection for applications to 820a moeller s zev electronic overload relay offers the ultimate motor protection at an economical price the base unit protects against overloads phase failure and phase imbalance in motors from 1 to 820a thermistor connections and optional ground-fault protection make the zev a great choice for virtually all applications where sophisticated yet economical motor protection is required r the new standard in protection newly-developed sensor systems and tripping units make the zev electronic overload relay the top-of-the-range in motor protection enhanced tripping classes provide reliable protection for motors with run-up times as long as 40 seconds trip classes are selectable from 5 to 40 seconds allowing precise protection for a range of applications additional features and options optional core-balance transformers detect ground faults quickly while an integrated thermistor connection makes it easy to upgrade to a full motor-protection system check out other great features of the zev relay listed on the left early warning of an overload internal fault detection ambient temperature compensation test off button automatic manual reset trip indication trip-free release integrated no nc contact easy to operate a built-in lcd guides you through set-up and operation in the event of a fault the display indicates the origin ­ speeding the process of troubleshooting and repair configurable auxiliary contacts may be added for communication of ground faults thermistor trips internal faults or early warning of an overload flexibility for multiple environments the multi-voltage module automatically adapts to different voltages from 24240v ac dc providing a fast and flexible connection to all conventional control compact design ring-type current sensors make the zev a great choice for protection of even small motors there s no need for main current wiring or back pan drilling the sensor is installed quickly and easily with velcro fasteners compared to conventional transformers this design is up to 58 times smaller saving valuable space in the control panel safety and approvals the zev electronic overload relay is touch safe to ip20 specifications it meets approval standards of ul csa iec/en 60 947 and vde 0660.

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