Multifunction motor starter with integrated motor protection

04 June 2013

Eaton has launched its first multifunctional motor starter with integrated motor protection in a 30 mm mounting width for motors with ratings from 0.06 to 3 kW.

The new EMS electronic motor starter combines DOL start, reversing start, motor protection and emergency stopping to category 3 (EN 13849-1) in a single switching device, which is said to offer reduced wiring of up to 60% when compared to conventional switchgear assemblies. The proportion of hardware components required is also reduced by up to 70%.
Due to its slim width, the starter optimises the use of space in the control panel, helping to ensure a uniform panel design. The use of tool-less push-in technology also keeps installation requirements to a minimum, while the hybrid switching technology increases the lifespan of contacts.

Eaton uses push-in technology for faster wiring. The terminals are simply pushed in without the need for any tools, reducing the time required for connection. At the same time, the push-in technology offers additional contact protection from vibrations of the switching device. Additional tightening, as is often required for screw terminals, is unnecessary.

The integrated hybrid switching technology, based on wear-free semiconductor technology and a robust relay contact, is said to ensure the low-wear switching of the EMS. This relieves the load on the actual relay contact for actuating the motor.

All variants of the electronic motor starter come with electronic wide-range overload protection with integrated phase failure detection to IEC60947 which enables the switching device to cover the 0.18 to 6.5 A (AC-53a) and 9 A (AC-51) current ranges with only two devices.