PR3-E-105kW

Description

The PR3-E Series is a robust range of 3-phase burst fire power controllers designed for seamless control of resistive loads in HVAC systems and other high-demand applications. Available in 86kW and 105kW models, these thyristor stacks provide precise, reliable power management using advanced two-thirds control techniques. Ideal for air curtains, furnaces, ovens, and more, the PR3-E Series ensures optimal performance with minimal interference, thanks to fast pulse zero-voltage switching technology.

Key Features:

• Versatile Control: Offers both signal control via a DC input and manual control using a 5kΩ potentiometer, providing flexibility for various applications.
• Advanced Burst Firing: Utilizes fast pulse zero-voltage switching to reduce flicker and eliminate RFI issues, ensuring smooth and efficient operation.
• Built-in Safety Features: Includes automatic resetting temperature trip, integral semiconductor fuses, and heatsink for enhanced protection and durability.
• User-Friendly Design: Easy access to signal and power terminals simplifies installation and maintenance.
• Robust Performance: Supports 3-wire, 3-phase floating-star or closed-delta configured resistive loads, making it suitable for a wide range of industrial and commercial applications.

Applications:

• Heating, Ventilating, and Air Conditioning (HVAC): Perfect for air curtain systems, ensuring consistent and efficient heating.
• Industrial Heating: Ideal for use in furnaces, ovens, dryers, and hot plates where precise temperature control is essential.

Technical Specifications:

• Power/Current Rating: 86kW (120A) and 105kW (146A) at 415V RMS
• Input Voltage: 400V RMS ± 10%
• Control Input Options: 0-10V DC (standard), 0-5V, or manual via 5kΩ potentiometer
• Burst Fire Control: Slow Burst (1-second proportional time base) and Fast Burst (variable, un-proportional time base)
• Alarm Relay: Voltage-free, rated for 125V AC @ 2A, with configurable status options
• Temperature Control: Trips at 90°C with automatic reset at 85°C
• Phase and Sensor Loss Detection: LED indicators provide visual status updates
• Fusing: High-speed semiconductor type fuse (160A for 86kW, 200A for 105kW)
• Dimensions: 272mm (D) x 250mm (W) x 130mm (H)
• Weight: 5.2kg

The PR3-E Series 3-Phase Burst Fire Power Controllers are engineered for durability and efficiency, offering a powerful solution for managing high-capacity resistive loads in demanding environments. Whether for HVAC or industrial heating applications, this range provides precise control, easy installation, and reliable operation, ensuring your systems run smoothly and safely.