PSTB1050-690-70T
Product ID:72837
Updated: 2026/4/3
Key Features
- 1Operate across 208–690 V AC for versatile application. 2、Deliver up to 1050 A (1810 A inside delta) for heavy-duty use. 3、Save energy and simplify installation from 370 A. 4、Protect motors with dual overload, torque, and PTC protection. 5、Integrate seamlessly via Profibus, Modbus, Devicenet, or CANopen.
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