Phase Controller - APR-4 - 8 Pin

Phase Controller - APR-4 - All Machines - 8 Pin
Category: Industrial Phase & Voltage Controller / Phase Monitor
Product Overview
The APR-4 Phase Controller is an 8-pin electronic control device designed to monitor and regulate three-phase power supply conditions. It protects motors, drives, and electrical systems by detecting phase loss, phase reversal, phase imbalance, over/under voltage conditions, ensuring safe operation of CNC machines, woodworking equipment, compressors, pumps, and control panels.
Technical Specifications
Electrical Characteristics
Rated Supply Voltage: 380 V AC (3-Phase) (Standard)
Operating Voltage Range: Typically ±15% of Rated Voltage
Frequency: 50 / 60 Hz
Phase Detection: 3-Phase Monitoring
Phase Imbalance Detection: Yes
Phase Sequence Protection: Yes (Correct phase rotation required)
Under-Voltage / Over-Voltage Protection: Yes
Phase Loss Detection: Yes
Output & Switching
Output Type: Relay
Contact Configuration: SPDT (Single Pole Double Throw)
Rated Contact Capacity:
5 A @ 250 V AC
3 A @ 30 V DC
Response Time: Typically < 1 s
Settings & Adjustments
Adjustable Voltage Set Points:
Over-Voltage Trip Setting
Under-Voltage Trip Setting
Reset Mode: Auto / Manual Reset (depending on variant)
Indicator LEDs:
Power ON
Phase OK / Fault
Mechanical & Installation
Mounting Type: Socket / DIN Rail (via socket)
Pin Base: 8-Pin Sockets
Housing Material: Durable industrial plastic
Terminal Type: Plug-in pin base socket
Dimensions: Compact module (standard industrial size)
Environmental Conditions
Operating Temperature: −10 °C to +55 °C
Storage Temperature: −20 °C to +70 °C
Relative Humidity: 35 % – 85 % RH (Non-condensing)
Protection Rating: Standard industrial enclosure
Typical Applications
Protection of 3-phase motors on CNC routers and machines
Control panel phase monitoring & safety
Air compressors, pumps, HVAC systems
Industrial automation power conditioning
Woodworking machinery electrical protection
Key Features
✅ Protects against phase loss, imbalance, & reversal
✅ Monitors over-voltage and under-voltage
✅ Reliable relay output for control circuits
✅ Easy plug-in 8-pin installation
✅ LED indicators for quick status feedback
✅ Compact & rugged industrial design
Package Includes
1 × APR-4 Phase Controller (8 Pin)