PR1-E-9kW Burst Fire Power Controller | 9kW, 37.5A HVAC Heating Control

The PR1-E-9kW is a robust single-phase burst fire power controller designed for precision control of HVAC heater batteries and resistive loads. Delivering up to 9kW (37.5A), it ensures efficient heating performance with built-in fault alarms, LED indications, and over-temperature protection for safe and reliable operation.

The PR1-E-9kW is the entry-level model in the PR1-E Series, providing 9kW (37.5A) power capacity for HVAC heater batteries and resistive heating systems. Using burst fire technology, it ensures precise control while reducing electrical interference and flicker.

With built-in over-temperature trip (90°C), sensor loss detection, and phase fault monitoring, this controller offers reliability and safety for commercial and industrial heating systems. The factory-set internal supply allows straightforward installation, while the voltage-free alarm relay provides remote monitoring options.

Compact, lightweight, and CE-marked, the PR1-E-9kW is a cost-effective solution for smaller HVAC systems requiring accurate and safe heating control.

Applications

• HVAC heater batteries

• Air handling units

• Commercial heating panels

• Industrial resistive heating systems

• Process ovens, dryers, and flexible heater mats

Features

• Burst fire control for smooth power regulation

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

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

• Sensor and phase loss detection with LED pulse diagnostics

• Factory set for internal supply, optional external 24V AC/DC alarm supply

• Compact enclosed design with natural convection cooling

Technical Specifications

• Power Rating: 9kW (37.5A)

• Input Voltage: 230V RMS ±10%

• Frequency: 50/60Hz

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

• Alarm Relay: 2A @ 125V AC (voltage free contacts)

• Thermal Trip: 90°C ±1°C | Reset at 85°C ±1°C

• Terminals: 10mm² clamp blocks | Torque 2Nm

• Fusing: 50LET (fast-acting semiconductor fuse)

• Cooling: Natural convection, vertical heatsink fins

• Dimensions: 200 x 155 x 120mm (D x W x H)

• Weight: 1.1kg

Typical Applications

• HVAC air handling systems

• Small commercial heater batteries

• Compact resistive heating application