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

Description 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