Autonics SPR3-450NFF 440 V AC Power Controller
SPR3-450NFF is an Autonics 440 V AC Power Controller for three-phase 440VAC systems with 50A rated load current industrial. Manufactured by Autonics, this controller belongs to Autonics Power Controllers within the SPR3 Series, featuring three-phase control, 50A rated load current, a 3-digit 7-segment LED display, and 100–240VAC power supply.
| Brand | Autonics |
| Product Type | Power Controller |
| Model Number | SPR3-450NFF |
Autonics SPR3-450NFF 440 V AC Power Controller – Technical Specifications
| Specification | Value |
|---|---|
| Control phase | 3-phase |
| Rated load voltage | 440VAC~ |
| Rated load current | 50A |
| Display method | 3-digit 7-segment LED |
| Control input | ᆞAuto control: DC4-20mA, 1-5VDC @(=), ON/OFF contact (no-voltage input), pulse voltage (5-12VDC @(=)) ᆞManual control: outside adjuster (10kΩ), inside adjuster (output limit) |
| Digital inputs | RUN/STOP switching, AUTO/MANU switching, RESET |
| Output_Alarm | 250VAC~ 3A, 30VDC @(=) 3A, 1c resistive load |
| Cooling method | Natural cooling |
| Control method | ᆞPhase control: normal control mode, constant current/constant voltage/constant power feedback control modeᆞCycle control: fixed cycle control modeᆞON/OFF control |
| Applied load | ᆞPhase control, ON/OFF control: resistance load, inductive loadᆞCycle control: resistance load |
| Output range | Phase control: 0 to 98%, Cycle control: 0 to 100%, ON/OFF control: 0 to 100% |
| Power supply | 100-240VAC~ 50/60Hz |
| Min. load current | 1A |
| Power consumption | Max. 14VA |
| Insulation resistance | Over 200MΩ (at 500VDC megger) |
| Dielectric strength | 2,000VAC~ 50/60Hz for 1 min (between input terminals and power terminals) |
| Output leakage current | Max. 10mArms |
| Noise immunity | ±2kV the square wave noise (pulse width: 1㎲) by the noise simulator |
| Memory Protection | ≈ 10 years (non-volatile semiconductor memory type) |
| Vibration | 0.75 mm amplitude at frequency of 5 to 55 Hzin each X, Y, Z direction for 2 hours |
| Vibration_Malfunction | 0.5mm amplitude at frequency of 5 to 55Hz in each X, Y, Z direction for 10 min |
| Environment_Ambient temperature | -10 to 55℃, storage: -20 to 80℃ |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Allowable voltage range | 90 to 110% of rated voltage |
| Indicator | ᆞOperation indicator/Manual control indicator: green LEDᆞAlarm indicator/output indicator/unit (V, A) indicator: red LED |
| Output accuracy | ᆞNormal control: within ±10% F.S. of rated load voltageᆞConstant current feedback control: within ±3% F.S. of rated load currentᆞConstant voltage feedback control: within ±3% F.S. of rated load voltageᆞConstant power feedback control: within ±3% F.S. of rated load power |
| Setting type | By front keys, by communication |
| Function | Output limit (OUT ADJ), AUTO/MAN selection, control method selection, RESET, SOFT START, SOFT UP/DOWN, output high/low limit, input correction, input slope correction, monitoring (control input, load voltage/current/power/resistance, power supply frequenc |
| Function_Alarm | Overcurrent alarm, overvoltage alarm, fuse break alarm, SCR error alarm, heater break alarm, heatsink overheat alarm |
| Accessories | 11-pin connector, isolating barrier: 4 |
| Weight | Approx. 4.9kg(approx. 4.1kg) |
The Autonics SPR3-450NFF 440 V AC Power Controller is designed for regulated AC power control in industrial automation systems. This Autonics power controller supports three-phase control, operates at a 440VAC rated load voltage, and manages a 50A rated load current. SPR3-450NFF belongs to the SPR3 Series and is used where stable three-phase power regulation is required.
The SPR3-450NFF Autonics 440 V AC Power Controller is applied in conveyors, packaging machinery, automated production lines, and industrial assembly systems. Its support for automatic and manual control inputs enables stable output regulation under changing load conditions. The integrated LED display provides clear operating visibility, supporting consistent process control across continuous industrial operations.
SPR3-450NFF from Autonics provides defined electrical ratings, controlled power consumption, and standardized control interfaces for industrial use. As part of the SPR3 Series, it supports dependable three-phase AC power control with clear feedback and stable operation. With specified operating parameters and proven brand reliability, the SPR3-450NFF Autonics 440 V AC Power Controller remains suitable for long-term industrial automation applications.
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