Thermal protection relay ZEB series
phase lossthree-phasefor electric motors

thermal protection relay
thermal protection relay
thermal protection relay
thermal protection relay
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Measured/monitored value
thermal, phase loss
for electric motors
contactor mount
manual reset, automatic reset
Other characteristics
Tripping current

250 A


The functional safety and service life of a motor depend mainly on the motor protection. From attractively priced bimetal options to full motor protection with networking options, Eaton offers the right solution for every application. Z overload relays Features: •Protection with phase loss and overload •Auxiliary contacts switch off the motor protection and signal the fault •Suitable for protection of EEx e-motors •Optimised for the xStart concept •The overload relay Z can be mounted directly on contactor DIL M up to 250 A •Separate mounting of the relay possible Electronic motor-protective relay ZEB Features: •Solution for enhanced motor protection •Self-supplying electronics avoids need for connection of an external supply voltage •Reduced number of variants reduces inventory costs and simplifies selection and engineering •Adjustable tripping classes for optimum protection at varying starting conditions •Can be mounted directly on contactor DILM results in space savings in the control panel •Automatic / manual release for fast process restart for enhanced availability •Adjustable single-phasing sensitivity for symmetric and asymmetric loads •Device LED for visual overload early warning •Integrated earth-fault current detection.

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Motor Protection Relays

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