Motor Control & Protection

Motor control and protection equipment from ABB, Siemens and Schneider Electric covers everything between the supply and the motor shaft. The range spans contactors, overload relays, motor protection circuit breakers, starters, soft starters, variable frequency drives, servo systems and industrial motors, with rated currents from 0.1 A to 2,650 A and power up to 800 kW. Stoklink ships worldwide from Turkey and quotes project volumes on request.

What's in this range

• Contactors – switching devices for motor and load circuits, mostly 3-pole
• Thermal Overload Relays – bimetal and electronic relays for motor overload protection
• Motor Protection Circuit Breakers (MPCB) – short-circuit and overload protection in one device
• Motor Starters & Motor Management – starter combinations and motor controllers such as TeSys U and SIRIUS 3RK
• Soft Starters – controlled ramp-up for 3-phase motors
• Variable Frequency Drives (VFD) – speed control with ABB ACS, Schneider Altivar and Siemens SINAMICS
• Servo Drives & Motion Control – servo motors, drives, controllers and cables
• Industrial Motors – SIMOTICS asynchronous motors

How to choose

• Motor power and rated current at the supply voltage. Size the starter or drive for the nameplate current, not just the kW value.
• Starting method: direct on line, soft start or variable speed. This decides whether you need a contactor, a soft starter or a VFD.
• Duty class, for example AC-3 for squirrel-cage motors under IEC 60947-4-1.
• Protection split: overload relay plus fuses or MCB, or a single MPCB.
• Control interface: coil voltage, fieldbus such as PROFINET, and mounting.

FAQ

What is the difference between a soft starter and a VFD?

A soft starter limits inrush current during start and stop at fixed supply frequency. A VFD changes the output frequency, so it also controls speed while running.

Do I need a contactor and an overload relay, or an MPCB?

An MPCB combines short-circuit and overload protection and works with a contactor. The separate route uses a fuse or MCB, a contactor and an overload relay. Choose by space, coordination type and rating.

Can you ship motor control products outside Turkey?

Stoklink ships worldwide from Turkey on EXW terms. Lead time depends on distributor stock, and project quantities are quoted on request.