Press Releases

Wider Soft-Starting Selection from Moeller

Moeller Electric has launched its new DS6 soft-starter series for motor ratings between 18.5 and 110kW.

The new range combines the simple handling of Moeller's small DS4 devices (2.2 to 15 kW) with the high connection loads of the fully-featured DM4 soft-starter series (7.5 to 900 kW).

Microprocessors and thyristors in the new series automatically control the starting and operation of asynchronous three-phase motors

No parameter settings are required.

The new soft-starters are connected to the motor in series and can be used in combination with overload protection and isolating devices (NZM1 and NZM2 circuit-breakers).

Available in two sizes with rated currents between 36 and 200 A, they enable soft acceleration and deceleration for the assigned motor ratings between 18.5 and 110 kW at 400V.

Acceleration and deceleration ramps can be adjusted separately.

The motor voltage is increased on the DS6-340-…-MX with phase control from a selected start value, with an adjustable ramp time up to the full mains voltage (Ue = 208 … 460 V ± 10 % 50/60 Hz).

The proven and patented asymmetrical trigger control carried over to the new series from the DS4 avoids DC components and the formation of elliptical rotation fields.

The DS6 is capable of around ten starts an hour with three times the start-up current for five seconds in accordance with product standard IEC/EN 60947-4-2.

Start voltage, acceleration and deceleration ramp can be set by means of three potentiometers.

Control is implemented using galvanically isolated 24 VDC inputs.

LEDs indicate the operating status of the DS6, while two isolated relay contacts are used for signalling.

International certifications in compliance with CE, UL, CSA, CCC and the large mains voltage range make Moeller's new DS6 series suitable for a host of different soft-start applications in pumps, fans, compressors, stirrers, conveyors and other systems.

« Back