Autonics SPR3-435NFF 3-Phase Power Controller
SPR3-435NFF is an Autonics 3-Phase Power Controller for 440VAC three-phase systems with 35A rated load current industrial automation use. Manufactured by Autonics, this controller belongs to Autonics Power Controllers within the SPR3 Series, supporting three-phase control, 440VAC rated load voltage, 35A rated load current, and a 3-digit 7-segment LED display.

| Brand | Autonics |
| Product Type | Power Controller |
| Model Number | SPR3-435NFF |
Autonics SPR3-435NFF 3-Phase Power Controller – Technical Specifications
| Specification | Value |
|---|---|
| Control phase | 3-phase |
| Rated load voltage | 440VAC~ |
| Rated load current | 35A |
| 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 SPR3-435NFF 3-Phase Power Controller is designed for controlled AC power regulation in industrial automation systems. This Autonics controller operates with three-phase control, a 440VAC rated load voltage, and a 35A rated load current. SPR3-435NFF is part of the SPR3 Series and is used where stable three-phase power control is required.
The SPR3-435NFF Autonics 3-Phase Power Controller is applied in conveyors, packaging machines, automated production lines, and assembly systems. Its support for automatic and manual control inputs enables stable output regulation under varying load conditions. The LED display provides clear operational visibility, helping maintain consistent process control in continuous industrial environments.
SPR3-435NFF from Autonics delivers defined electrical ratings and controlled power consumption suitable for industrial use. As a member of the SPR3 Series, it supports reliable three-phase AC power control with standardized interfaces and clear feedback. With specified operating parameters and established brand reliability, the SPR3-435NFF Autonics 3-Phase Power Controller remains suitable for long-term industrial automation applications.




