Description

PR1-E-12kW Single-Phase Burst Fire Power Controller for Medium HVAC Loads

The PR1-E-12kW is a medium-capacity single-phase burst fire power controller designed for HVAC and industrial heating applications up to 12kW (50A). It uses burst fire technology for smooth, efficient power delivery with minimal flicker and RFI.

Built-in LED indications, over-temperature trip, sensor and phase fault detection, and voltage-free alarm relay contacts ensure reliability and safety in demanding environments. Designed for ease of installation, the PR1-E-12kW supports multiple control input signals and includes factory-set internal supply (with optional external 24V supply).

Compact and CE-certified, this controller is ideal for medium-scale HVAC heating systems that require efficiency and protection.

Applications

• HVAC heater batteries

• Industrial heating systems

• Air handling units

• Ovens, dryers, and flexible heater mats

• Commercial heating panels

Features

• Burst fire control for reduced RFI and smooth power regulation

• Alarm relay with fault indication (2A @ 125V AC)

• Over-temperature trip at 90°C, reset at 85°C

• LED indications for phase loss and sensor faults

• Supports control signals: 0–10V DC, 0–5V DC, 5kΩ potentiometer

• Robust enclosure with vertical cooling fins

Technical Specifications

• Power Rating: 12kW (50A)

• Input Voltage: 230V RMS ±10%

• Frequency: 50/60Hz

• Control Input: 0–10V DC (default), 0–5V DC, or manual 5kΩ potentiometer

• Alarm Relay: 2A @ 125V AC, voltage-free contacts

• Thermal Protection: Trip at 90°C ±1°C, reset at 85°C ±1°C

• Terminals: 10mm² clamp blocks | Torque 2Nm

• Fusing: 80LET high-speed fuse

• Cooling: Natural convection, vertical heatsink fins

• Dimensions: 200 x 155 x 120mm

• Weight: 2.8kg

Typical Applications

• HVAC air handling units

• Medium commercial heating loads

• Resistive process heating applications