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
- 1SFA898121R7000
- Model no
- PSTX1250-600-70
Low stock
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· From Türkiye
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- CE
- CSA
- RoHS
- CCC
ABB 1SFA898121R7000 PSTX1250-600-70 1250A 208-600V AC 3P 710kW Soft Starter
Other ratings in PSTX
All 19 ratings ↓
| Motor power kW | Rated current In (A) | Part number | Stock | Price |
|---|---|---|---|---|
| 315 | 570 | 1SFA898117R7000 | In stock | $6,799.90 |
| 400 | 720 | 1SFA898118R7000 | Low stock | $8,275.22 |
| 450 | 840 | 1SFA898119R7000 | Low stock | $9,095.89 |
| 560 | 1050 | 1SFA898120R7000 | Low stock | $10,765.22 |
| 710 | 1250 | 1SFA898121R7000This part | Low stock | $12,460.14 |
Description
About the PSTX1250-600-70
About the PSTX1250-600-70
The ABB PSTX1250-600-70 (SKU: 1SFA898121R7000) is a 1250 A, 710 kW electronic soft starter from ABB's advanced PSTX series, designed to provide smooth, controlled motor starting and stopping for high-power three-phase AC applications. Operating across a wide supply voltage range of 208–600 V AC with a control voltage of 110–250 V, the PSTX1250-600-70 delivers precise torque control, reduced inrush current, and comprehensive motor protection in a robust industrial package.
Certifications & Standards
- IEC 60529: International standard for degrees of protection provided by enclosures (IP rating)
- IEC 60947-1: International standard for low-voltage switchgear and controlgear — general rules
- EN 60529: European harmonised standard for enclosure protection degrees (IP classification)
- CSA: Canadian Standards Association certification for North American market compliance
- REACH: EU regulation compliance for chemical substances — confirms safe material composition
- RoHS: Restriction of Hazardous Substances directive compliance — lead-free and environmentally responsible
- WEEE: Waste Electrical and Electronic Equipment directive compliance for end-of-life recycling
- CCC: China Compulsory Certification for sale and use in the Chinese market
- CE: European conformity marking confirming compliance with applicable EU directives
Applications & Use Cases
The PSTX1250-600-70 is engineered for demanding industrial motor control scenarios where high starting currents must be limited to protect both the motor and the supply network. Its wide voltage range and 1250 A rating make it ideal for:
- Large pump and compressor drives in water treatment, oil & gas, and HVAC systems
- High-power fan and blower applications in process industries
- Conveyor and crusher drives in mining and bulk material handling
- Centrifugal pumps and mixers in chemical and food processing plants
- Heavy-duty motor starting in power generation and utility infrastructure
By delivering a controlled ramp-up of voltage and torque, the PSTX1250-600-70 eliminates mechanical shock at start, extends motor and driven-equipment service life, and reduces maintenance costs — a key advantage over direct-on-line or star-delta starters in high-inertia load applications.
Frequently Asked Questions
Q: What is the supply voltage range of the PSTX1250-600-70?
A: The PSTX1250-600-70 operates on a supply voltage of 208–600 V AC, making it compatible with most international three-phase industrial networks.
Q: What control voltage does this soft starter require?
A: The control circuit operates at 110–250 V, accommodating both 110 V and 230 V control supplies without additional transformers in most installations.
Q: What motor power rating does the PSTX1250-600-70 support?
A: It is rated for motors up to 710 kW at the nominal voltage range, paired with a 1250 A continuous current capability.
Q: Is the PSTX1250-600-70 suitable for use in China?
A: Yes. The product holds CCC (China Compulsory Certification), confirming it meets Chinese regulatory requirements for import and deployment.
Specification
Full specification
Dimensions 4
| Product Net Width | 435 mm |
|---|---|
| Product Net Height | 565 mm |
| Product Net Depth / Length | 367 mm |
| Product Net Weight | 63.3 kg |
Technical 36
| Rated Operational Voltage | 208 ... 600 V AC |
|---|---|
| Rated Control Supply Voltage (Us) | 100 ... 250 V AC |
| Rated Control Circuit Voltage (Uc) | 24 V DC |
| Rated Frequency (f) | 50/60 Hz, Main Circuit 50 / 60 Hz |
| Rated Operational Power - In-Line Connection (Pe) | (230 V) 400 kW, (400 V) 710 kW, (500 V) 880 kW |
| Rated Operational Current - In-Line Connection (Ie) | 1250 A |
| Rated Operational Power - Inside Delta Connection | at 230 V 670 kW, at 400 V 1200 kW, at 500 V 1500 kW |
| Rated Operational Current - Inside Delta Connection | 2160 A |
| Service Factor Percentage | 100 % |
| Overload Protection | Built-in electronic overload protection |
| Integrated Electronic Overload | Yes |
| Starting Capacity at Maximum Rated Current Ie | 4xIe for 10s |
| Ramp Time | 1 ... 120 s |
| Initial Voltage During Start | 10 ... 99 % |
| Step Down Voltage Special Ramp | 100 ... 10 % |
| Current Limit Function | 1.5 ... 7.5 xle |
| Switch for Inside Delta Connection | Yes |
| Run Signal Relay | Yes |
| By-pass Signal Relay | Yes |
| Fault Signal Relay | Yes |
| Overload Signal Relay | Yes |
| Analog Outputs | 0…10 V, 0…20 mA, 4…20 mA |
| Signal Indication Ready to Start/Standby ON (LED) | Green |
| Signal Indication Running R (LED) | Green |
| Signal Indication Protection (LED) | Yellow |
| Signal Indication Fault (LED) | Red |
| Communication | Modbus-RTU; Modbus-TCP; Ethernet-IP; EtherCAT; DeviceNet; CANopen; Profibus; Profinet; BACnet-IP; BACnet-MSTP |
| Degree of Protection | acc. to IEC 60529, IEC 60947-1, EN 60529 Main Terminals IP00 |
| Terminal Type | Main Circuit: Bars |
| Connecting Capacity Control Circuit | Rigid 1 x 2.5 mm² |
| Connecting Capacity Supply Circuit | Rigid 1 x 2.5 |
| Tightening Torque | Main Circuit 45 N·m |
| Product Main Type | PSTX1250 |
| Function | Auto phase sequence detection, Automatic restart, Current limit, Current limit ramp, Dual current limit, Dynamic brake, Electricity metering, Electronic overload Time-to-cool, Emergency mode, Event log, Full voltage start, Jog with slow speed, forward and reverse, Keypad password, Kick start, Limp mode with two-phase motor control if one set of thyristors is shorted, Motor heating, Pre-start function, Pump cleaning, Real time clock, Sequence start, Soft start with torque control, Soft start with voltage ramp, Soft stop with torque control, Soft stop with voltage ramp, Stand still brake, Start reverse (external contactors), Thyristor runtime measurement, Torque limit, Voltage sags detection |
| Protection Function | Bypass open protection; Current imbalance protection; Current underload protection; Dual overload (separate overload for start and run); Earth fault protection / ground fault protection; Electronic overload protection, EOL; Extension IO failure protection; Fieldbus failure protection; HMI failure protection; Locked rotor protection; Max number of starts/hour; Over voltage protection; Phase reversal protection; Power factor underload protection; PT-100 connection; PTC connection; Too long current limit protection; Too long start time protection; Under voltage protection; User defined protection; Voltage imbalance protection |
| Warning Details | Current imbalance warning; Current underload warning; Electronic overload Time-to-trip; EOL warning; Faulty fan warning; Locked rotor warning; Motor runtime limit warning; Over voltage warning; Phase loss warning (for standby); Power factor underload warning; Short circuit warning (for Limp mode); THD(U) - Total Harmonic Distortion warning; Thyristor overload warning (SCR); Under voltage warning; Voltage imbalance warning |
Technical UL/CSA 3
| Horsepower Rating UL/CSA | (200 ... 208 V AC) Three Phase 400 Hp, (220 ... 240 V AC) Three Phase 500 Hp, (440 ... 480 V AC) Three Phase 1000 Hp, (550 ... 600 V AC) Three Phase 1200 Hp |
|---|---|
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V |
| Tightening Torque UL/CSA | Main Circuit 398.3 |
Show all 73 specifications ↓ Show less ↑30 more values in Identification, Environmental, Material Compliance, External Classifications and Standards, Logistics.
Identification 10
| Part number | 1SFA898121R7000 |
|---|---|
| Type designation | PSTX1250-600-70 |
| Brand | ABB |
| Condition | New, factory sealed |
| Source | ABB and its authorised distributors |
| Warranty | Manufacturer warranty |
| EAN | 7320500510469 |
| eCl@ss | 27370907 |
| Minimum Order Quantity | 1 piece |
| Customs Tariff Number | 85371091 |
Environmental 1
| Ambient Air Temperature | Operation -25 ... +60 °C, Storage -40 ... +70 °C |
|---|
Material Compliance 6
| REACH Declaration | 2CMT2022-006481 |
|---|---|
| RoHS Declaration | 2CMT2022-006500 |
| RoHS Information | Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019 |
| Toxic Substances Control Act - TSCA | 2CMT2023-006524 |
| WEEE B2C / B2B | Business To Business |
| WEEE Category | 4. Large Equipment (Any External Dimension More Than 50 cm) |
External Classifications and Standards 3
| ETIM 7 | EC000640 - Soft starter |
|---|---|
| eClass | V11.0 : 27370907 |
| UNSPSC | 39121521 |
Logistics 10
| Package Level 1 Width | 600 mm |
|---|---|
| Package Level 1 Depth / Length | 616 mm |
| Package Level 1 Height | 800 mm |
| Package Level 1 Gross Weight | 75.3 kg |
| Package Level 1 EAN | 7320500510469 |
| Package Level 1 Units | box 1 piece |
| Shipping weight | 75.3 kg |
| Ships from | Türkiye |
| Dispatch | 11 Nov |
| Stock | Low stock |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for 1SFA898121R7000 1
-
Datasheet
SeriesDownload PDF: Data Sheet, Technical Information 1SFC132012C0201
Data Sheet, Technical Information 1SFC132012C0201
Other ratings
All 19 ratings in PSTX
ABB PSTX series page →
| Motor power | Rated current | Part number | Model no | Stock | Dispatch | Price | Add to cart |
|---|---|---|---|---|---|---|---|
| 15 kW | 30 A | 1SFA898103R7000 | PSTX30-600-70 | In stock | $817.71 | ||
| 18.5 kW | 37 A | 1SFA898104R7000 | PSTX37-600-70 | In stock | $903.41 | ||
| 22 kW | 45 A | 1SFA898105R7000 | PSTX45-600-70 | In stock | $955.18 | ||
| 30 kW | 60 A | 1SFA898106R7000 | PSTX60-600-70 | Low stock | $1,096.23 | ||
| 37 kW | 72 A | 1SFA898107R7000 | PSTX72-600-70 | In stock | $1,143.84 | ||
| 45 kW | 85 A | 1SFA898108R7000 | PSTX85-600-70 | In stock | $1,399.73 | ||
| 55 kW | 105 A | 1SFA898109R7000 | PSTX105-600-70 | In stock | $1,634.22 | ||
| 75 kW | 142 A | 1SFA898110R7000 | PSTX142-600-70 | In stock | $2,027.00 | ||
| 90 kW | 170 A | 1SFA898111R7000 | PSTX170-600-70 | In stock | $2,478.70 | ||
| 110 kW | 210 A | 1SFA898112R7000 | PSTX210-600-70 | In stock | $2,768.52 | ||
| 132 kW | 250 A | 1SFA898113R7000 | PSTX250-600-70 | In stock | $3,004.19 | ||
| 160 kW | 300 A | 1SFA898114R7000 | PSTX300-600-70 | In stock | $3,739.17 | ||
| 200 kW | 370 A | 1SFA898115R7000 | PSTX370-600-70 | Low stock | $4,550.92 | ||
| 250 kW | 470 A | 1SFA898116R7000 | PSTX470-600-70 | In stock | $5,590.61 | ||
| 315 kW | 570 A | 1SFA898117R7000 | PSTX570-600-70 | In stock | $6,799.90 | ||
| 400 kW | 720 A | 1SFA898118R7000 | PSTX720-600-70 | Low stock | $8,275.22 | ||
| 450 kW | 840 A | 1SFA898119R7000 | PSTX840-600-70 | Low stock | $9,095.89 | ||
| 560 kW | 1050 A | 1SFA898120R7000 | PSTX1050-600-70 | Low stock | $10,765.22 | ||
| 710 kW | 1250 A | 1SFA898121R7000 This part | PSTX1250-600-70 | Low stock | $12,460.14 |
Certifications
Certifications and standards
- CE
- CSA
- RoHS
- CCC
Quick answers
Questions about the PSTX1250-600-70
What is the rated current of PSTX1250-600-70?
The rated current of PSTX1250-600-70 is 1250 A.
Which supply voltage is PSTX1250-600-70 rated for?
The rated operational voltage of PSTX1250-600-70 is 208–600 V AC.
What motor power is PSTX1250-600-70 rated for?
The rated motor power of PSTX1250-600-70 is 710 kW.
Which control voltage does PSTX1250-600-70 need?
The control voltage range of PSTX1250-600-70 is 100–250 V.
What is the HS code of PSTX1250-600-70 for customs?
The tariff (HS) code on file for PSTX1250-600-70 is 853710.
What is the EAN of PSTX1250-600-70?
The EAN (GTIN) of PSTX1250-600-70 is 7320500510469.
Where does PSTX1250-600-70 ship from, and how fast?
PSTX1250-600-70 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Guides
Guides for soft starters
Soft Starter vs Autotransformer Starter Compared
A side-by-side comparison of soft starters and autotransformer (Korndorfer) starters covering torque, supply-side current, transition type, maintenance, cost, and load fit.
Different Types of Soft Starters: A Complete Guide for Engineers
Explore the different types of soft starters, from analog to digital and solid-state models, with key features for industrial motor control. Shop at Stoklink.
Reviews
Customer reviews
Series
ABB PSTX
- Brand
- ABB
- Series
- PSTX
- Motor power
- 15–710 kW
- Rated current
- 30–1250 A
- Supply voltage
- 208–600 V AC
- Ratings listed
- 19
