ABB ATS430/A4A2M3A4E01 Altistart Soft Starters

Razz Middle East supplies Altistart soft starters in Saudi Arabia, sourced to order against the full type reference. A soft starter sits between the supply and a three-phase induction motor and ramps the voltage applied to the windings, so the motor accelerates under control instead of being thrown straight onto the line. Each unit is quoted per part number and delivered duty-paid, with a typical lead time of three weeks.

ABB ATS430/A4A2M3A4E01

This page covers ABB part number ATS430/A4A2M3A4E01 — Altistart Soft Starters. Quote the full part number with your enquiry and the item is unambiguous: one part number identifies one exact product variant, including options that are not visible in the description.

About Altistart Soft Starters

A direct-on-line start draws several times the motor's rated current and applies full torque instantly. On a large motor that means a voltage dip on the network and a mechanical shock through the coupling, the gearbox and the driven machine. A soft starter uses thyristors to raise the applied voltage along a defined ramp, so starting current and torque build gradually; on stopping, the same control ramps down and avoids the pressure surge a pump produces when switched off abruptly.

A modern soft starter is more than a ramp. Current-limit and torque-control modes shape the start to the load, and integrated motor protection covers overload, phase loss, phase imbalance, underload and locked rotor. Once the motor is at speed, an internal bypass contactor carries the running current so the thyristors stop dissipating heat. Control is by terminal, keypad or fieldbus, with relay outputs for run and fault status. A soft starter is not a variable-speed drive: it controls the start and stop, not the running speed, and where flow or speed has to be varied continuously a drive is the correct device.

Altistart Soft Starters in Saudi Arabia

Soft starters are used across Saudi water infrastructure, where the driver is hydraulic rather than electrical. Booster and transmission pumps on long desert mains, well-field pumps and sewage lift stations are started and stopped softly to avoid the water hammer that cracks pipework and fails check valves, and the same argument applies on desalination intake and high-pressure pumps at Jubail, Shuaibah and Ras Al Khair. In industry they run large fans, compressors, crushers and conveyors in cement, mining and petrochemical plants, where a direct start would shock a gearbox or a belt. On remote sites fed by a generator or a weak SEC spur, limiting starting current is what makes a large motor startable at all. The supply is 380/400 V at 60 Hz, and high starts-per-hour and high panel temperature both push the unit up a frame size.

Ordering and lead time

Order by the full type reference as it appears on the nameplate, including everything after the slash — ATS430/A4A2M3A4E01 is one designation. Give the motor's rated power, current and voltage, and describe the load, because a soft starter is sized on starting duty, not simply on motor kilowatts: a centrifugal pump, a loaded conveyor and a crusher demand very different start profiles from the same motor size. Tell us the number of starts per hour, the ambient temperature at the panel, and whether the unit is inside an enclosure. Confirm whether you need an integrated or external bypass, and which control interface the panel expects. Sourced to order, typical lead time three weeks, delivered duty-paid.

Specifications are taken from the supplier's published catalogue data. Confirm against the manufacturer's current datasheet before ordering.