Posted on May 21, 2010 - ( views)
Eaton launches its SmartWire-Darwin Module for the PKE motor protective circuit breakers, with electronic wide range overload protection. These circuit-breakers measure the current rise via the integrated current transformer in the trip block, and evaluate it via a special electronic circuit which sends a pulse via an actuator system to the switch mechanism. The voltage supply of the electronic circuit is implemented via a transformer. The opening time depends on the ratio of the tripping current to the setting current and is stored in the form of a long-time stable tripping characteristic curve. They operate with a larger current transfer ratio. In this way, the device has a wide current setting range in the ratio 1:4.
Successful implementation of ErP Directive
New option for motor control combines the simplicity of a conventional fixed-speed starter with ability to vary the speed of the motor
Variants with metal extension shafts for mounting in the switch cabinet
For Zone 22 hazardous dust applications
With overload relay functionality
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