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Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | ABB 1SFB536068D1011 |
| Manufacturer | ABB |
| Product Type | Soft Starter Control Board / Motherboard |
| Compatible Series | PST / PSTB Series (105A Frame Size) |
| Compatible Soft Starter Models | PST105-600-70, PSTB105 |
| Control Supply Voltage | 24V DC (Internal Logic); 100–250V AC (System) |
| Motor Power Range | Up to 75kW (at 400V) / 75 HP (at 480V) |
| Rated Motor Current | 105A (Maximum) |
| Control Functions | Voltage Ramp, Current Limit, Torque Control, Soft Stop, Bypass Management |
| Communication Interface | FieldBusPlug Support (Modbus RTU / Profibus DP / DeviceNet) |
| Protection Logic | Overload, Overcurrent, Phase Loss, Undervoltage, Overtemperature |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions (Approx.) | 210 x 152 x 35 mm |
| Weight (Approx.) | 0.34 kg |
Main Features and Advantages
Advanced Control Algorithms: The ABB 1SFB536068D1011 implements ABB’s proprietary soft start control algorithms, delivering smooth, stepless voltage regulation for three-phase induction motors . By precisely modulating the SCR conduction angle, the ABB 1SFB536068D1011 effectively limits the starting current to less than 3 times the motor’s rated full load current, dramatically reducing the mechanical shock on gearboxes, couplings, and belts, while preventing voltage dips in the power distribution network . This capability extends motor life by up to 30% and reduces the risk of costly unplanned downtime.
Integrated Protection Suite: The ABB 1SFB536068D1011 provides comprehensive motor protection that goes beyond simple soft starting. The ABB 1SFB536068D1011 continuously monitors motor current, voltage, and temperature, enabling real-time detection of electrical and mechanical anomalies . Its integrated protection functions include electronic overload (Class 10/10A), locked rotor protection, underload detection, phase loss, and overtemperature shutdown . With a millisecond-level fault response, the ABB 1SFB536068D1011 immediately shuts down the motor at the first sign of an issue, protecting both the motor and the soft starter itself from catastrophic damage .
Robust Industrial Design: The ABB 1SFB536068D1011 is manufactured to ABB’s stringent quality standards, incorporating conformal coating to protect the PCB from dust, moisture, and chemical contaminants . This anti-corrosion treatment ensures that the ABB 1SFB536068D1011 maintains reliable performance even in harsh environments such as cement plants, mining sites, and water treatment facilities . The board’s high immunity to electromagnetic interference (EMC) ensures stable operation in electrically noisy industrial environments, preventing false tripping and erratic behavior .
Seamless Fieldbus Connectivity: The ABB 1SFB536068D1011 supports optional FieldBusPlug modules, enabling easy integration into modern automation networks using standard protocols such as Modbus RTU, Profibus DP, and DeviceNet . This capability allows for remote monitoring and control of the soft starter parameters, including start/stop commands, status feedback, and real-time current measurements, directly from the central PLC or DCS . This reduces the need for extensive hardwiring and simplifies system diagnostics.
