SPR3-4150NFF Autonics Power Controller

Autonics SPR3-4150NFF 3-Phase Power Controller | 150A, 440VAC, LED Display, Auto/Manual Control, Feedback Modes

The Autonics SPR3-4150NFF is a high-capacity, intelligent 3-phase power controller designed for industrial applications requiring precise and stable load control. Featuring advanced feedback control modes (constant current, voltage, and power), this unit supports both automatic and manual control with flexible input options and real-time monitoring via a bright LED display.

🔧 Key Features:

• Model: SPR3-4150NFF

• Brand: Autonics

• Product Type: 3-Phase Solid State Power Controller

• Usage/Application: Industrial

• Control Phase: 3-Phase

• Rated Load Voltage: 440 VAC~

• Rated Load Current: 150 A

• Minimum Load Current: 1 A

• Allowable Voltage Range: 90% – 110% of rated voltage

• Control Input:

  • Auto: DC 4–20mA, 1–5VDC, ON/OFF contact (no-voltage), pulse voltage (5–12VDC)

  • Manual: External adjuster (10kΩ), Internal adjuster (output limit)

• Power Supply: 100 – 240 VAC (50/60 Hz)

• Power Consumption: Max. 32 VA

• Cooling Method: Forced Air Cooling (with fan)

• Weight: Approx. 9.7 kg (Net: 8.7 kg)

📊 Control & Display:

• Display Type: 3-digit 7-segment LED

• LED Indicators:

  • Operation/Manual Control: Green

  • Alarm/Output/Unit Indicators (V, A): Red

• Control Methods:

  • Phase Control: Normal / Constant Current / Constant Voltage / Constant Power

  • Cycle Control: Fixed Cycle Mode

  • ON/OFF Control

✅ Output & Accuracy:

• Output Range:

  • Phase Control: 0–98%

  • Cycle Control: 0–100%

  • ON/OFF Control: 0% or 100%

• Output Accuracy:

  • Normal Control: ±10% F.S.

  • Constant Feedback Modes: ±3% F.S.

• Alarm Output: 250VAC 3A / 30VDC 3A (1c resistive load)

🎯 Applications:

Ideal for:

• High-load resistance or inductive systems

• Furnace control, industrial heating, and automation

• Power systems requiring feedback-regulated performance

• Complex process control requiring multiple input/output types

Why Choose Autonics SPR3-4150NFF?
✔️ Heavy-duty 150A load control
✔️ Multi-mode feedback precision (current/voltage/power)
✔️ Supports digital inputs: RUN/STOP, AUTO/MAN, RESET
✔️ LED display with status and alarm indicators
✔️ Reliable thermal management with forced air cooling