Description

PR1-DIN-F-3kW Phase Burst Fire HVAC Power Controller

The PR1-DIN-F-3kW Phase Burst Fire Power Controller is a professional-grade, DIN-rail mounted solution engineered for precise control of resistive heating loads in HVAC and industrial environments. Designed to deliver smooth, proportional power regulation, this controller uses burst fire technology to optimise energy efficiency while significantly reducing electrical noise and thermal stress on connected equipment.

With integrated safety protection, compact construction and flexible control inputs, the PR1-DIN-F-3kW is ideal for modern control panels where reliability, space efficiency and compliance are essential.

Key Features

• Phase Burst Fire Power Control
  Provides stable and efficient proportional power control for resistive heating loads.

• 3kW Power Rating (12.5A @ 240V RMS)
  Optimised for medium-duty HVAC and industrial heating applications.

• Over-Temperature Protection
  Automatic safety trip at 90°C, with reset at 85°C, safeguarding both the controller and load.

• Temperature Sensor Loss Detection
  Integrated fault detection with clear LED indication for rapid diagnostics.

• DIN-Rail Mounted Design
  Secure TS35 DIN-rail mounting for fast installation and maintenance.

• Multiple Control Signal Options
  Supports 0–10V DC (factory set), 0–5V DC, or manual control via 5kΩ potentiometer (not supplied).

• Integrated Fail-Safe Fuse
  Ceramic quick-blow fuse ensures compliance with industrial safety standards.

• LED Status Indicator
  Tracks control signal intensity and displays fault conditions clearly.

• Compact, Naturally Cooled Construction
  Designed for vertical mounting with natural convection cooling—no forced ventilation required.

Applications

The PR1-DIN-F-3kW controller is suitable for a wide range of HVAC and industrial heating applications, including:

• HVAC heating systems

• Industrial and process heaters

• Air handling units (AHUs)

• Ventilation and duct heaters

• Ovens and drying equipment

• Hot plates and thermal processing equipment

• General resistive heating loads

It is particularly well suited to installations requiring quiet operation, reduced EMC emissions, and reliable long-term performance without the need for remote EMC filtering.

Technical Specifications

Power Rating:

• 3.0kW (12.5A) @ 240V RMS

Supply Voltage:

• 230V RMS ±10%

Frequency:

• 50 / 60Hz

Control Input Options:

• 0–10V DC (factory set)

• 0–5V DC

• Manual control via 5kΩ potentiometer (not supplied)

Status Indication:

• LED tracks control signal intensity

Over-Temperature Protection:

• Trip at 90°C ±1°C

• Reset at 85°C ±1°C

• LED fast flash during over-temperature conditions

Sensor Loss Detection:

• LED flashes at 1-second on/off intervals

Cable Terminations:

• Power & Earth: up to 2.5mm²

• Control Signal: up to 2.5mm²

Terminal Torque:

• 0.5Nm (all terminals)

Fusing:

• F16A (6mm × 32mm) ceramic quick-blow ferrule fuse

Maximum Ambient Temperature:

• 65°C (operational)

Dimensions:

• 112mm (D) × 95mm (W) × 75mm (H) including DIN-rail clip

Mounting:

• TS35 DIN-rail

Weight:

• 0.3kg