Motor Soft-Start Solution — SCHNEIDER ATS48C11Q | Altistart 48 Series
Where This Product Is Used
The SCHNEIDER ATS48C11Q is a high-capacity soft starter engineered for 110 kW (150 HP) three-phase asynchronous motors operating on 208–690 V AC networks. It is deployed across demanding industrial environments where controlled motor acceleration and deceleration are critical to process integrity and equipment longevity.
Typical application sectors include:
- Water & Wastewater Treatment — pump stations, centrifugal pumps, submersible lift stations requiring smooth ramp-up to prevent water hammer
- Mining & Quarrying — conveyor drives, crushers, and ore-handling systems where high inertia loads demand torque-controlled starting
- Oil & Gas Upstream/Midstream — compressor drives, pipeline booster pumps, and wellhead equipment on remote or generator-fed networks
- Cement & Building Materials — ball mills, rotary kilns, and bucket elevators with heavy mechanical loads
- HVAC & Building Services — large chiller compressors, cooling tower fans, and air-handling units in commercial high-rises
- Marine & Offshore — deck machinery, ballast pumps, and cargo handling winches requiring IEC-compliant motor control
- Pulp & Paper / Food & Beverage — process pumps and agitators where frequent starts must not stress mechanical couplings
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | ATS48C11Q |
| Brand / Manufacturer | Schneider Electric |
| Series | Altistart 48 (ATS48) |
| Motor Power (400 V) | 110 kW / 150 HP |
| Rated Current (Ie) | 110 A |
| Supply Voltage Range | 208 – 690 V AC, 3-phase, 50/60 Hz |
| Control Supply Voltage | 110 – 230 V AC (separate control circuit) |
| Starting Current Limitation | Adjustable 150 – 500% of Ie |
| Torque Control | Closed-loop torque ramp (patented) |
| Bypass Contactor | Internal bypass (motor runs at full voltage after ramp) |
| Protection Functions | Thermal overload, phase loss, phase imbalance, under/overvoltage, motor thermistor input (PTC) |
| Communication | Modbus RTU (via RJ45); optional CANopen / Profibus DP |
| Degree of Protection | IP20 (open chassis); IP65 with optional enclosure kit |
| Ambient Temperature | -10 °C to +60 °C (derated above 40 °C) |
| Mounting | DIN rail or panel mount (vertical orientation) |
| Dimensions (H × W × D) | Refer to Schneider Electric datasheet SG-ATS48C11Q |
| Weight | Approx. 4.5 kg |
| Certifications | CE, UL, CSA, IEC 60947-4-2, RoHS |
Why Engineers Specify This Model
- Closed-Loop Torque Control: Unlike voltage-ramp starters, the ATS48 series uses a patented torque-control algorithm that eliminates mechanical shock on couplings, gearboxes, and driven equipment — critical for high-inertia loads.
- Internal Bypass Contactor: Once the motor reaches full speed, the internal bypass routes current directly, eliminating thyristor heat losses during run mode and extending device service life.
- Wide Voltage Tolerance (208–690 V): A single SKU covers global voltage standards, simplifying spare-parts inventory for multinational plant operators.
- Integrated Motor Protection: Replaces separate overload relays and phase-loss relays, reducing panel footprint and wiring complexity.
- Modbus RTU Native: Plug-and-play integration with SCADA, DCS, and PLC systems (Modicon, Siemens, Allen-Bradley) without additional gateways.
- Proven Field Reliability: The Altistart 48 platform has accumulated millions of operating hours across water, mining, and process industries since its introduction.
Complete System Bill of Materials
For a fully engineered soft-start panel using the ATS48C11Q, engineers typically specify the following complementary components — all available through Konmask.com:
- Main Isolator / Disconnect Switch — Schneider Electric Vario or equivalent 160 A rated
- Input Fuses or MCCB — Type gG fuses 160 A or Compact NSX160 MCCB with motor protection trip unit
- Input Line Contactor — LC1D115 or LC1D150 (for upstream switching and emergency stop)
- Control Transformer — 230 V / 24 V DC for PLC I/O interfacing
- PTC Thermistor Relay — if motor does not have built-in PTC wired to ATS48 thermistor input
- Output Motor Cables — sized per IEC 60364-5-52 for 110 A continuous current
- Surge Protection Device (SPD) — Type 2 SPD on incoming supply for lightning-prone installations
- Modbus Communication Cable — Shielded twisted-pair, Belden 9841 or equivalent
- Enclosure — IP54 steel enclosure with forced ventilation for ambient >40 °C
Compliance & Industry Standards
- IEC 60947-4-2 — Low-voltage switchgear: AC semiconductor motor controllers and starters
- IEC 60034-1 — Rotating electrical machines: motor compatibility
- UL 508 — Industrial control equipment (UL listed)
- CSA C22.2 No. 14 — Industrial control equipment (Canada)
- CE Marking — EMC Directive 2014/30/EU; Low Voltage Directive 2014/35/EU
- RoHS 2011/65/EU — Restriction of hazardous substances compliant
- ATEX / IECEx — Not rated for Zone 1/2 hazardous areas in standard configuration; consult Konmask for ATEX-compliant motor control alternatives
Quality Assurance & Sourcing
Konmask.com sources the ATS48C11Q exclusively through authorized Schneider Electric distribution channels and verified secondary-market partners with full traceability documentation. Every unit dispatched from our warehouse undergoes:
- Visual inspection against Schneider Electric genuine-product authentication criteria (holographic label, serial number format, housing finish)
- Packaging integrity check (original Schneider Electric carton, foam insert, and accessory kit completeness)
- Serial number verification against Schneider Electric’s product authentication portal where applicable
- Functional power-on test available on request for high-volume orders (>5 units)
All products are shipped with original manufacturer documentation including the Quick Start Guide and Wiring Diagram. A 12-month warranty against manufacturing defects is provided, with advance replacement available for critical plant applications.
How to Source This Part
- Add to Cart — For standard stock orders, proceed directly to checkout. Lead time: 3–7 business days (China domestic); 7–15 business days (international).
- Request a Quote — For orders of 3+ units, OEM pricing, or project-based procurement, email [email protected] with your project name, quantity, and required delivery date.
- Technical Pre-Sales Consultation — Our application engineers can review your motor nameplate data and confirm ATS48C11Q suitability or recommend an alternative model. Contact us via WhatsApp/WeChat: +0086 19859288691.
- Customs & Export Documentation — We provide commercial invoice, packing list, and certificate of origin for all international shipments. HS Code: 8536.49 (AC motor starters).
Application-Specific FAQ
Q: Can the ATS48C11Q be used with a 690 V motor on a 690 V supply?
A: Yes. The ATS48C11Q is rated for supply voltages up to 690 V AC, making it suitable for European and industrial 690 V networks without any hardware modification.
Q: Does this soft starter support pump-specific deceleration control?
A: Yes. The Altistart 48 includes a configurable deceleration ramp with pump-stop function to prevent water hammer in centrifugal pump applications.
Q: Can I use the ATS48C11Q in bypass mode permanently?
A: The internal bypass is designed for continuous run-mode operation. However, for applications requiring the soft starter to be fully isolated during run (e.g., very high ambient temperature), an external bypass contactor with interlocking is recommended.
Q: Is Modbus RTU communication included as standard?
A: Yes. The RJ45 Modbus RTU port is standard on all ATS48 units. No additional communication card is required for Modbus integration.
Q: What is the difference between ATS48C11Q and ATS48C14Q?
A: The ATS48C14Q is rated for 140 A / 132 kW at 400 V. Specify the C14Q when your motor nameplate current exceeds 110 A or motor power exceeds 110 kW at your supply voltage.
Q: Can Konmask supply the matching Schneider Electric bypass contactor and MCCB as a kit?
A: Yes. Contact our sales team for a complete soft-start panel BOM quotation including all Schneider Electric components.
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Contact: [email protected] | +0086 19859288691
