How to Select and Size a Soft Starter for a Motor
How to size a soft starter correctly by full-load current, IEC 60947-4-2 duty class, starting torque against the load, control method, wiring topology and...
- Part number
- ATSU01N206LT
- Model no
- ATSU01
- UL
- CSA
- CCC
Schneider Electric ATSU01N206LT ATSU01 3P 6A 200-480V 0.75-3kW Altistart Soft Starter
Description
About the ATSU01
About the ATSU01
The Schneider Electric ATSU01N206LT is a 3-phase electronic soft starter from the Altistart ATSU01 series, designed to provide smooth reduced-voltage starting and stopping for AC induction motors rated 0.75 to 3kW. The ATSU01 delivers controlled torque ramp-up, limiting inrush starting current and mechanical stress on driven equipment across a wide supply voltage range of 200 to 480V AC. Ideal for pump, fan, and conveyor applications where gentle motor acceleration is critical.
Applications & Use Cases
- Pump Systems: Eliminates water hammer and pressure surges on start by controlling ramp-up of starting current.
- Fans & Blowers: Reduces mechanical stress on belts and couplings during acceleration with torque control.
- Conveyors: Prevents load shifting and belt slip through smooth, configurable motor start sequences.
- Compressors: Limits inrush current peaks, protecting upstream switchgear and supply infrastructure.
- Light Industrial Machinery: Suitable for any 0.75–3kW 3-phase AC motor application requiring electronic soft starting and reduced voltage starting.
Specification
Full specification
Main 14
| Range of Product | Altistart U01 and TeSys U |
|---|---|
| Product destination | Asynchronous motors |
| Product or Component Type | Soft starter |
| Product Specific Application | Simple machine |
| Device short name | ATSU01 |
| Phase | 3 phase |
| [Us] rated supply voltage | 200...480 V - 10...10 % |
| Motor power kW | 3 kW, 3 phase 400 V, 0.75 kW, 3 phase 230 V, 2.2 kW, 3 phase 400 V, 1 kW, 3 phase 230 V, 1.5 kW, 3 phase 400 V |
| Maximum Horse Power Rating | 1 hp, 3 phase 230 V, 2 hp, 3 phase 460 V, 3 hp, 3 phase 460 V, 1.5 hp, 3 phase 230 V |
| IcL starter rating | 6 A |
| Utilisation category | AC-53B EN/IEC 60947-4-2 |
| Current consumption | 65 mA |
| Type of start | Start with voltage ramp |
| Power dissipation in W | 1.5 W at full load and at end of starting, 61.5 W in transient state |
Complementary 31
| Assembly style | With heat sink |
|---|---|
| Function Available | Integrated bypass |
| Supply voltage limits | 180…528 V |
| Supply frequency | 50...60 Hz - 5...5 % |
| Network Frequency | 47.5...63 Hz |
| Output voltage | <= power supply voltage |
| [Uc] Control circuit voltage | 24 V DC +/- 10 % |
| Starting time | 1 s / 100, 5 s / 20, 10 s / 10, Adjustable from 1 to 10 s |
| Deceleration time symb | Adjustable from 1 to 10 s |
| Starting torque | 30...80 % of starting torque of motor connected directly on the line supply |
| Discrete input type | Logic LI1, LI2, BOOST) stop, run and boost on start-up functions <= 8 mA 27 kOhm |
| Discrete input voltage | 24...40 V |
| Input output isolation | Galvanic between power and control |
| Discrete input logic | Positive LI1, LI2, BOOST 13 V, >= 0.5 mA |
| Discrete output current | 2 A DC-13, 3 A AC-15 |
| Discrete output type | Open collector logic LO1 end of starting signal, Relay outputs R1A, R1C NO |
| Discrete output voltage | 24 V 6...30 V) open collector logic |
| Minimum switching current | 10 mA 6 V DC relay outputs |
| Maximum switching current | Relay outputs 2 A 30 V DC cos phi = 0.5 20 ms inductive, Relay outputs 2 A 250 V AC AC-15 cos phi = 0.5 20 ms inductive |
| Maximum switching voltage | 440 V relay outputs |
| Display type | 1 LED Green)starter powered up, 1 LED Yellow)nominal voltage reached |
| Tightening torque | 16.8…22.1 lbf.in (1.9…2.5 N.m), 4.4 lbf.in (0.5 N.m) |
| Electrical connection | 4 mm screw clamp terminal - rigid 1 1...10 mm² 8 AWG power circuit, Screw connector - rigid without cable end 1 0.5...2.5 mm² 14 AWG control circuit, 4 mm screw clamp terminal - rigid 2 1...6 mm² 10 AWG power circuit, Screw connector - rigid 2 0.5...1 mm² 17 AWG control circuit, Screw connector - flexible with cable end 1 0.5...1.5 mm² 16 AWG control circuit, 4 mm screw clamp terminal - flexible without cable end 1 1.5...10 mm² 8 AWG power circuit, Screw connector - flexible without cable end 1 0.5...2.5 mm² 14 AWG control circuit, 4 mm screw clamp terminal - flexible with cable end 2 1...6 mm² 10 AWG power circuit, 4 mm screw clamp terminal - flexible without cable end 2 1.5...6 mm² 10 AWG power circuit, Screw connector - flexible without cable end 2 0.5...1.5 mm² 16 AWG control circuit |
| Marking | CE |
| Operating position | Vertical +/- 10 degree |
| Height | 9.2 in (234 mm) |
| Width | 1.8 in (45 mm) |
| Depth | 5.9 in (150 mm) |
| Net Weight | 0.75 lb(US) (0.34 kg) |
| Power range | 0.55…1 kW 200…240 V 3 phase, 1.1…2 kW 380…440 V 3 phase, 2.2…3 kW |
| Motor starter type | Soft starter |
Environment 11
| Electromagnetic compatibility | Conducted and radiated emissions level B conforming to CISPR 11, Conducted and radiated emissions level B conforming to IEC 60947-4-2, Damped oscillating waves level 3 conforming to IEC 61000-4-12, Electrostatic discharge level 3 conforming to IEC 61000-4-2, EMC immunity conforming to EN 50082-1, EMC immunity level B conforming to EN 50082-2, Harmonics level 3 conforming to IEC 1000-3-2, Harmonics level 3 conforming to IEC 1000-3-4, Immunity to electrical transients level 4 conforming to IEC 61000-4-4, Immunity to radiated radio-electrical interference level 3 conforming to IEC 61000-4-3, Voltage/current impulse level 3 conforming to IEC 61000-4-5, Conducted and radiated emissions level 3 conforming to IEC 61000-4-6, Immunity to conducted interference caused by radio-electrical fields level 4 conforming to IEC 61000-4-11 |
|---|---|
| Standards | EN/IEC 60947-4-2 |
| Product Certifications | CCC, UL, C-tick, CSA |
| IP Degree of Protection | IP20 |
| Pollution degree | 2 EN/IEC 60947-4-2 |
| Vibration resistance | 1 gn (f= 13…150 Hz) conforming to EN/IEC 60068-2-6, 1.5 mm peak to peak (f= 3…13 Hz) conforming to EN/IEC 60068-2-6 |
| Shock resistance | 15 gn 11 ms EN/IEC 60068-2-27 |
| Relative humidity | 5…95 % without condensation or dripping water EN/IEC 60068-2-3 |
| Ambient air temperature for operation | 14…104 °F (-10…40 °C) (without derating), 104…122 °F (40…50 °C) (with current derating of 2 % per °C) |
| Ambient air temperature for storage | -13…158 °F (-25…70 °C) EN/IEC 60947-4-2 |
| Operating altitude | <= 3280.84 ft (1000 m) without derating, > 3280.84 ft (1000 m) with current derating of 2.2 % per additional 100 m |
Show all 70 specifications ↓ Show less ↑14 more values in Identification, Contractual warranty, Logistics.
Identification 8
| Part number | ATSU01N206LT |
|---|---|
| Type designation | ATSU01 |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3389110667080 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | DE |
|---|---|
| Shipping weight | 0.34 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for ATSU01N206LT
No documents are on file for this part yet.
Ask us for the datasheet
Certifications
Certifications and standards
- UL
- CSA
- CCC
- EN/IEC 60947-4-2
Quick answers
Questions about the ATSU01
What is the rated current of ATSU01?
The rated current of ATSU01 is 6 A.
Which supply voltage is ATSU01 rated for?
The rated operational voltage of ATSU01 is 200–480 V AC.
What motor power is ATSU01 rated for?
The rated motor power of ATSU01 is 3 kW.
What is the HS code of ATSU01 for customs?
The tariff (HS) code on file for ATSU01 is 853710.
What is the EAN of ATSU01?
The EAN (GTIN) of ATSU01 is 3389110667080.
Where does ATSU01 ship from, and how fast?
ATSU01 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Reviews
Customer reviews
Series
Schneider Electric Altistart U01 (ATSU01)
- Brand
- Schneider Electric
- Series
- Altistart U01 (ATSU01)
