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Control Motor

Motor control has always been something difficult to tackle with as a motor is first of all an inductive type of load with high starting currents (which doesn’t help reduce size and costs of protection devices like fuses) and over voltages generated at turn-off.
This is why
Solid State solutions are more and more popular to control motor loads. Another big advantage of using power electronics is that numerous control modes can easily be performed thanks to very fast response time, and computing power of micro-processors.
celduc relais specialising in Solid State Relays manufactures in France with a high level of quality a complete range of Solid State Contactors for motors, as well as soft starters and motor reversers.
Soft Starters:
Drawbacks of direct starting are as following:
High inrush current: Heat, flicker risks, energy and installation costs
Noise, arcs: Short control lifetime and maintenance costs
High transient torque: Excessive wear of the coupling parts leading to maintenance costs
Quality problems and product wastes may occur
A Solid State soft starter will then limit the starting current hence saving energy. It will at the same time limit torque for a longer lifetime of mechanical parts.
celduc® relais has designed a range of soft starters for AC motors up to 26 kW (wired in Delta).
Motor reversers:
Several models of reversers are available in the product range of celduc® relais up to 7.5 kW.
They have the interlocking function and over-voltage protections integrated.

For AC motor control

digital proportionnal controllers.

phase motor softstarters

phase motor reversersThese relays are used to reverse the rotational direction of a motor

poles or 3 poles motor switching control.Din-Rail mounted products.

AC motor change-over control.Din-Rail mounted products.

For DC motor control SGRD

Reversing switch for DC motor controlThis reversing unit offers all the necessary built-in control protections including protection against wiring errors or short circuit on the input as well as the interlocking function to avoid control of the two directions at the same time.

Reversing switch for DC motor controlThis module for Din-Rail mounting comprises 4 Solid State Relays wired as a reverser to be used to change the direction of a DC motor.

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