SPC1-50-E Autonics Power Controller
Autonics SPC1-50-E Single Phase SCR Power Controller (50A, 220 VAC)
High-capacity single-phase SCR power controller rated at 50 A for accurate control of industrial resistive heating loads.
Supports Phase, Cycle, and ON/OFF control modes with multiple analog and contact inputs.
The Autonics SPC1-50-E is a single-phase SCR power controller engineered for stable and precise control of resistive heating loads up to 50 A. With selectable phase/cycle/ON-OFF control, soft-start, and multiple control input options, it is widely used in industrial furnaces, ovens, heaters, and temperature control panels.
Key Features
Single-phase SCR power controller
Rated load current: 50 A
Supports Phase control / Cycle control / ON-OFF control
Accepts 4–20 mA, 1–5 VDC, external adjuster (1 kΩ), contact input
Soft-Start function to protect heaters from inrush current
Output limit (OUT ADJ) function
Automatic 50/60 Hz frequency detection
Output indication LED
Natural air cooling
Compact, panel-mount design
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SPC1-50-E |
| Series | SPC |
| Control Phase | Single Phase |
| Rated Load Current | 50 A |
| Power Supply | 220 VAC ±10%, 50/60 Hz |
| Control Methods | Phase/Cycle/ON-OFF |
| Control Inputs | 4–20 mA, 1–5 VDC, External Adjuster, Contact |
| Applied Load | Resistive load |
| Output Range | 0–98% (Phase), 0–100% (Cycle), ON/OFF |
| Cooling Method | Natural air cooling |
| Control Circuit | MICOM control |
| Protection | Fuse break protection (external fuse required) |
| Operating Temperature | 0 to 50 °C |
| Storage Temperature | −25 to +65 °C |
| Insulation Resistance | ≥ 100 MΩ (500 VDC) |
Applications
Electric furnaces & ovens
Industrial heaters & heater banks
Plastic processing machines
Textile & drying systems
Infrared heater control
OEM heater control panels
What’s in the Box?
SPC1-50-E Power Controller
Mounting bolts × 2
Instruction manual
FAQ
Q1. What load type is supported?
Designed for resistive heating loads only.
Q2. What control signals are supported?
4–20 mA, 1–5 VDC, external adjuster (1 kΩ), and ON/OFF contact input.
Q3. Is soft start available?
Yes, Soft-Start (0–50 sec) is available (except in ON/OFF mode).
Q4. Can it replace an SSR?
Yes, in ON/OFF control mode, it functions similarly to an SSR.
Q5. Is forced cooling required?
No, natural air cooling is sufficient with proper panel ventilation.