Schneider Electric ATS490C11Y Altivar ATS490 Soft Starter 110 A

ATS490C11Y: Altivar ATS490 soft starter, 110 A normal duty

The ATS490C11Y is a Schneider Electric Altivar Soft Starter ATS490 for three-phase asynchronous motors. It is rated 110 A in normal duty and 88 A in heavy duty at 40 °C, which the datasheet pairs with 55 kW at 400 V in normal duty (line connection) and up to 90 kW at 690 V. This unit runs from 208 to 690 V AC with a 110 to 230 V AC control supply and targets process and infrastructure duty. Seven Star LLC supplies the ATS490C11Y in Oman and the GCC as an independent supplier based in Muscat.

Reading the reference against the datasheet: the letter C groups ratings of 110 A and above, the digits 11 match the normal duty current (in tens of amps) and Y goes with the 110 to 230 V AC control supply. This is our reading, not a published ordering table.

Selection checklist for the ATS490C11Y

• Motor full-load current at the actual supply voltage compared with 110 A (normal duty) or 88 A (heavy duty).
• Starts per hour against the 10 cycles per hour limit, and whether the load needs heavy duty figures.
• Fieldbus needed: Modbus serial, Modbus TCP / EtherNet/IP, or an option card such as PROFINET or Profibus.
• Cabinet space for 289 × 160 × 234 mm and a heat budget of about 51 W at full load.

Mounting, heat and clearances for the ATS490C11Y

The datasheet lists degree of protection IP20. At 7 kg and 289 × 160 × 234 mm, the ATS490C11Y needs a back plate or frame that can carry the weight and a cabinet with enough height and depth for the air path. The datasheet requires vertical mounting within ± 10 degrees and tells you to keep the stated minimum clearances so that cooling air can travel from bottom to top. Clearances apply to neighbouring breakers, fuses and contactors, and the starter must not sit above heating elements. The datasheet lists 19 W of load-independent loss and 32 W of current-dependent loss for this rating, which adds up to 51 W at rated current once the internal bypass is closed. Add that figure to the other heat sources in the cabinet.

Ambient is −25 to 40 °C without derating and up to 60 °C with 1 % per degree above 40. Pollution degree 3 and rated insulation voltage 690 V are listed.

Functions, protection and communication of the ATS490C11Y

Starting uses torque control. The datasheet lists controlled deceleration, braking, boost, jog, anti-jam, a second motor set, borehole pump starting, contactor control, pre-heating, smoke extraction, condition and power monitoring, and current limiting from 150 to 700 % of In. The overload profile is 400 % of Ie for 13 s at a 50 % on-load factor and 10 cycles per hour, so a ATS490C11Y is not meant for a motor that restarts every few minutes. A start at 400 % of Ie dissipates 1471 W until the internal bypass closes. Arrange restarts after trips to stay inside it.

Protection covers mains phase failure, thermal protection of motor and starter, overload, underload, long acceleration, phase loss, phase inversion and earth faults, class 10E, with PTC, PT100, PT1000 or KTY84 probe inputs. I/O is five digital inputs (one is STO, SIL 1), three 2 A relay outputs, two open-collector outputs and one analogue in and out. Modbus serial and Modbus TCP / EtherNet/IP have separate RJ45 ports; options cover CANopen, Profibus DP V1 and PROFINET.

Technical specifications of the ATS490C11Y

Normal duty and heavy duty ratings of the ATS490C11Y

The same hardware carries 110 A in normal duty and 88 A in heavy duty, the latter meant for harder or longer starts. Motor sizes for the line connection are shown below.

For the inside-delta connection the datasheet lists 55 kW at 230 V and 90 kW at 400 V in normal duty, and 45 kW at 230 V and 75 kW at 400 V in heavy duty. The same starter is listed at 75 hp (normal) and 60 hp (heavy) at 460 V. Pick the column that matches how the load really starts.

Use in Oman and the GCC, commissioning and care of the ATS490C11Y

At 110 A the ATS490C11Y is aimed at large pumps, compressors, fans and conveyors on process and utility plants, including desalination feed pumps and cooling-water systems in the Gulf. Starting current control keeps the voltage dip on the plant bus within what the supply can accept. Fine dust and sand make filter maintenance part of the plan.

Before first start, verify motor data, connection type (line or inside-delta), control supply and phase rotation, since the unit monitors phase inversion. Set the current limit and start and stop behaviour, and test the STO input and relay outputs. For a spare unit, keep the parameter file so a replacement can be set to the same configuration.

In service, watch the condition and power monitoring values, keep air paths clear, check terminal tightness at shutdowns and keep the motor probe wiring intact. The datasheet records a removable battery, so include it in routine checks.

The ATS490C11Y among neighbouring ATS490 ratings

All ATS490 references in this group share the same supply ranges, functions, communication and protection list; they differ in current, motor size, frame, weight and heat. The nearest ratings by normal duty current are compared below.

When two references both seem to fit, the heavy duty column and the number of starts per hour usually settle the choice.

Information to send with an RFQ for the ATS490C11Y

• Reference ATS490C11Y and quantity.
• Motor power, full-load current, voltage and connection type (line or inside-delta).
• Load type, starting time and number of starts per hour.
• Control supply voltage and the fieldbus or option card needed.
• Ambient temperature and altitude at the installation.
• Delivery location and deadline.

Documents and quotation

The manufacturer datasheet for the ATS490C11Y is attached on this page. It holds the full specification table, the dimension drawings and the mounting and wiring pages summarised above.

Send us the reference ATS490C11Y, the quantity and the delivery location and Seven Star LLC will reply to your request for quotation. We are an independent supplier based in Muscat.