Technical Specifications
- Product Model: 150-B24NBDA-J1
- Brand: ALLEN-BRADLEY (Rockwell Automation SMC-50 Soft Starter Series)
- Warranty: One Year
- Input Voltage: 3-phase 200–480 VAC, 50/60 Hz
- Control Supply: 120–240 VAC universal coil
- Operating Temperature: 0°C ~ +50°C
- Storage Temperature: -25°C ~ +70°C
- Response Time: ≤ 100 ms fault detection response
- Protection Class: IP20 enclosure (cabinet mounting)
- Accuracy Class: ±5% motor current measurement
- Output Frequency: Matched incoming line frequency
- Rated Current Range: 24 A continuous motor load
- Communication Interface: RS485 terminal block
- Supported Protocols: Modbus RTU, DeviceNet, DPI
- Overload Capacity: 300% locked rotor current for controlled ramp startup
- Dimensions (W×H×D): 165 mm × 240 mm × 132 mm
Product Overview
The ALLEN-BRADLEY 150-B24NBDA-J1 is a compact SMC-50 intelligent soft starter engineered for smooth three-phase AC motor acceleration and deceleration. This solid-state motor controller eliminates harsh voltage spikes and mechanical shock associated with direct-on-line starting, addressing premature wear on gearboxes, belts, couplings and power distribution infrastructure. Automation engineers, MCC designers and maintenance teams utilising ALLEN-BRADLEY motor control hardware rely on this unit to regulate motor inrush current and deliver flexible motor protection. Integrated monitoring functions capture real-time operating metrics, while standard industrial communication enables seamless integration into PLC and SCADA systems across manufacturing, water treatment and material handling facilities. (Word count: 170)
Key Functions
- Adjustable Soft Start & Soft Stop Control: Configurable voltage ramp and current limit parameters gradually ramp motor torque during startup. Inrush current suppression reduces voltage dip on plant power networks and minimises mechanical stress on driven machinery.
- Comprehensive Motor Protection Suite: Embedded logic detects phase loss, phase imbalance, overcurrent, stall and motor overload conditions. Configurable alarm thresholds enable early warnings or automatic shutdown to prevent permanent motor winding damage.
- Bidirectional Industrial Communication: RS485 connectivity supports Modbus RTU and DPI protocol communication. Operators can remotely adjust parameters, read running status and retrieve fault logs from supervisory control platforms.
- Compact MCC-Friendly Form Factor: Standard enclosure dimensions simplify installation inside motor control centres and control panels. The unit supports bypass contactor integration to reduce internal heat generation during continuous steady-state motor operation.
