PSTB1050-690-70T
Product ID:72837
Updated: 2026/7/14
Key Features
- 1Operate across 208–690 V AC for versatile application.
- 2Deliver up to 1050 A (1810 A inside delta) for heavy-duty use.
- 3Save energy and simplify installation from 370 A.
- 4Protect motors with dual overload, torque, and PTC protection.
- 5Integrate seamlessly via Profibus, Modbus, Devicenet, or CANopen.
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Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Product Net Width | 436 mm | Product Net Height | 515 mm |
| Product Net Depth / Length | 381 mm | Product Net Weight | 60 kg |
| Rated Operational Voltage | Main Circuit 400 ... 690 V AC | Rated Control Supply Voltage (Us) | 100 ... 250 V AC |
| Rated Control Circuit Voltage (Uc) | DC Operation 24 V | Rated Frequency (f) | 50/60 Hz Main Circuit 50 / 60 Hz |
| Rated Operational Power - In-Line Connection (Pe) | (400 V) 560 kW (500 V) 730 kW (690 V) 1000 kW | Rated Operational Current - In-Line Connection (Ie) | 1050 A |
| Rated Operational Power - Inside Delta Connection | at 400 V 1000 kW at 500 V 1250 kW at 690 V 1700 kW | Rated Operational Current - Inside Delta Connection | 1810 A |
| Service Factor Percentage | 100 % | Overload Protection | Build-in electronic overload protection |
| Integrated Electronic Overload | Yes | Adjustable Rated Motor Current Ie | 30 ... 115 % |
| Starting Capacity at Maximum Rated Current Ie | 3xIe for 15s | Ramp Time | 0 ... 120 second [unit of time] 1 ... 120 second [unit of time] |
| Initial Voltage During Start | 30 ... 70 % | Step Down Voltage Special Ramp | 100 ... 30 % |
| Current Limit Function | 1.5 ... 7xIe | 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 | 0â¦10 volts 0â¦20 mA 4â¦20 mA | Signal Indication Ready to Start/Standby ON (LED) | Green |
| Signal Indication Protection (LED) | Yellow | Signal Indication Fault (LED) | Red |
| Number of Starts Per Hour at 3.5*Ie for 7 sec. 50% ON Time 50% OFF Time | 10 | Communication | FiledBusPlug(Standard) |
| Degree of Protection | acc. to IEC 60529, IEC 60947-1, EN 60529 Main Terminals IP00 | Terminal Type | Main Circuit: Bars |
| Connecting Capacity Main Circuit | Hole Diameter 12.5 mm Width and Thickness 40x6 mm | Connecting Capacity Control Circuit | Rigid 1 x 2.5 mm² Rigid 2 x 1.5 mm² |
| Connecting Capacity Supply Circuit | Rigid 1 x 2.5 mm² | Tightening Torque | Control Circuit 0.5 N·m Main Circuit 45 N·m Supply Circuit 0.5 N·m |
| Product Main Type | PSTB1050 | Ambient Air Temperature | Operation 0 ... +50 °C Storage -25 ... +70 °C |
| Object Classification Code | Q | ETIM 7 | EC000640 - Soft starter |
| ETIM 8 | EC000640 - Soft starter | ETIM 9 | EC000640 - Soft starter |
| eClass | V11.0 : 27370907 | Manufacturer ID | 1SFA895020R7020 |
Specifications may be subject to change without notice
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