X10631 UNITEDAUTOMATION

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V YOU MUST READ THIS BEFORE INSTALLATION ELECTRICAL SAFETY INSTALLATION REQUIREMENTS USER RESTRICTIONS USAGE ENVIRONMENT HOT SURFACE WARNING WARNING: RISK OF ELECTRIC SHOCK Always consult the Installation & Maintenance Instructions before connecting this product to the power supply. WARNING: Disconnect Power Before Servicing Ensure the electrical supply is safely disconnected before connecting to any supply, load, or control terminals. WARNING: Installation by Qualified Personnel Only This product must only be installed or fitted by a competent, qualified installer familiar with the relevant electrical standards and installation practices. WARNING: Not for Use by Vulnerable Individuals This product is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they are supervised or instructed by a person responsible for their safety. WARNING: Industrial Use Only This is an industrial-grade product and is not intended for household use. WARNING: Hot Surfaces On certain models, surfaces marked with this symbol become hot during use. Avoid direct contact and follow all thermal safety precautions. More Info: https://united-automation.com/general-product-safety-regulation-gpsr/

9 January 2026 | Issue: 7 Page 1 of 2

HVAC | HEATER BATTERY CONTROLLER PR1-(DIN-F) SERIES X10631 1.5kW, 3kW and 6kW DIN-Rail Mounted HVAC Controller Phase Burst Fire Power Controller 0044 (0) 1704-516 501 enquiries@united-automation.com www.united-automation.com CONTACT US: KEY FEATURES: The PR1-(DIN-F) Series-1 Phase Burst Fire Power Controller is a robust, DIN-rail mounted power control solution designed for precise and reliable regulation of resistive heating loads in HVAC and industrial applications. Available in 1.5kW, 3kW and 6kW variants, this controller operates in burst fire mode, delivering efficient power modulation while minimising electrical noise and thermal stress on connected loads. Engineered for professional installations, the PR1-(DIN-F) series incorporates advanced safety features including over-temperature protection, sensor fault detection and fail-safe fusing. Its compact stack design, combined with simple clamp terminals and DIN-rail mounting, makes installation fast, secure and space-efficient.  Burst Fire Power Control: Delivers stable and efficient proportional control for resistive loads.  Over-Temperature Protection: Automatic trip at 90°C with reset at 85°C to protect the unit and connected equipment.  Temperature Sensor Loss Detection: LED fault indication ensures rapid fault diagnosis.  DIN-Rail Mounting: Secure TS35 DIN-rail fixing for quick installation and removal.  Wide Power Range: Available in 1.5kW, 3kW and 6kW models to suit varied load requirements.  Control Signal Options:0–10V DC (factory set), 0–5V DC and Manual control via 5kΩ potentiometer (not supplied)  Integrated Fail-Safe Fuse: Ensures unit protection and compliance with safety standards.  LED Status Indicator: Tracks control signal intensity and provides clear fault diagnostics.  Compact, Naturally Cooled Design: Optimised for vertical mounting and natural convection cooling. TECHNICAL SPECIFICATIONS RMS Input Voltage 230V RMS ± 10% Frequency 50/60Hz Control Input Options Signal: 0 to 10V DC (factory set) OR 0 to 5V Manual: Manual control (using 5kΩ Potentiometer – NOT supplied) Status Indicator (Tracking control signal) LED indicator changes Intensity Over-temperature Trip in temperature @ 90°C ±1°C (LED indicator ‘flashes’ continuous fast pulsing) Trip out temperature @ 85°C, ± 1°C Sensor Loss Detection LED indicator ‘flashes’ at 1 sec. on/off intervals Cable Terminations Power & Earth (6kW) 4mm2 Maximum cable entry Power & Earth (1.5kW & 3.0kW) 2.5mm2 Maximum cable entry Control Signal (All models) 2.5mm2 Maximum cable entry Terminal Torque Settings 0.5Nm for all power and earth terminals. Fusing 1.5kW F10A (6mm ø x 32mm) – ceramic quick blow type ferrule fuse 3kW F16A (6mm ø x 32mm) – ceramic quick blow type ferrule fuse 6kW 30A (10mm ø x 38mm) – high-speed semiconductor type ferrule fuse Max. Ambient Temperature 65°C (maximum operational) Dimensions 1.5kW & 3kW 112mm (D) x 95mm (W) x 75mm (H) – includes DIN rail clip 6kW 112mm (D) x 96mm (W) x 85mm (H) – includes DIN rail clip With Perspex fuse cover 112mm (D) x 96mm (W) x 87mm (H) – includes DIN rail clip and cover (supplied separately) Fixing Centres (all) TS35 DIN rail mounting Weight 1.5kW & 3kW 0.3kg 6kW 0.7kg APPLICATIONS: The PR1-(DIN-F) Series is designed for precision power control in a wide range of HVAC and industrial heating applications, including:  HVAC heating systems  Industrial and process heaters  Air handling and ventilation systems  Ovens and drying equipment  Hot plates and thermal process equipment  General resistive heating loads This controller is particularly well suited to installations requiring quiet, efficient power control without the need for remote EMC filtering. MODELS PR1-DIN-F-1.5kW & PR1-DIN-F-3kW PR1-DIN-F-6kW To fit the protective cover, drill two holes—one on each side of the heatsink—using a 2.6 mm drill bit. The cover can be used as a template to mark the required hole positions. Then use 2 × No.4 × 6 mm self-tapping screws to locate and securely fasten the cover. Note: The protective cover is only available for the 6 kW model.

X10631 HVAC | HEATER BATTERY CONTROLLER PR1-(DIN-F) SERIES 1.5kW, 3kW and 6kW DIN-Rail Mounted HVAC Controller, Phase Burst Fire Power Controller BMF House - Wight Moss Way, Southport Business Park Southport PR8 4HQ ENGLAND, UNITED KINGDOM Contact Us:  0044 (0) 1704-516 501  enquiries@united-automation.com  www.united-automation.com unitedautomationltd UA_Limited 9 January 2026 | Issue: 7 Page 2 of 2 INSTALLATION & CONNECTIONS Cooling requirements This robust stack assembly has an operational temperature of 65°C when naturally cooled and has a built in 90°C over temperature trip on the heatsink as a safety feature. The unit should be mounted vertically, with heatsink fins top to bottom, and with sufficient surrounding air space to maximise natural convection cooling. If the unit is mounted in an enclosure or cabinet, adequate ventilation and/or forced air-cooling should be fitted. Load considerations The PR-series of power controllers are designed for resistive-type loads, e.g. Heaters. Unusual heating loads such as Molybdenum, Platinum or Tungsten have a typical, 10:1, hot to cold, resistance ratio and therefore, when cold, draw larger currents than normal. This range is fitted with a TRIAC power device. Fastening The unit is secured by DIN-rail mounting feet for quick installation/removal Connections This unit has simple clamp type terminal connectors for all auxiliary-wiring requirements. FUNCTIONS Over temperature protection When heat sink temperature of above 90ºC is detected by the sensor the LED pulses at 0.5 second on/off intervals. The power to the load will be disconnected and will not return until the temperature drops to 85ºC. Temperature sensor loss The LED pulses at 1 second on/off intervals if the sensor fails. Safety Warning 1. This unit is supplied with a fail-safe fuse for unit protection. See SPECIFICATION/INSTALLATION sections for further details. 2. All HAZARDOUS LIVE terminals. Isolate supply before commencing any installation work. 3. Unit must be secured on DIN rail using the DIN-rail fastening and installed in an additional enclosure/cabinet with adequate ventilation. RECOMMENDATIONS FUSING It is recommended that the specified type fuses (as supplied) be used as replacements for fail-safe protection. See SRA Data sheet X10255 for further information. Other external supplies should be fused accordingly. CE Marking This product family carries a “CE” marking. These burst firing type controllers do not require a filter. For information see recommendation section and contact our sales desk. See the Declaration of Conformity. DOCUMENTS Other documents available on request, which may be appropriate for your application: Code Identity Description X10213 ITA Interaction: Uses for phase angle and for burst fire control X10255 SRA Safety Requirements: Addressing the Low Voltage Directive (LVD) including, Thermal Data/Cooling, Live Parts Warning, Earthing Requirements and Fusing Recommendations X10378 ILR Inductive loads remedy sheet for use with Phase angle controllers P01.1 COS UAL Conditions of Sale regulations (BS7671) by suitably qualified/trained personnel. The regulations contain important requirements regarding installation and safety of electrical equipment. Specific installers should refer to local and national regulations. OPTIONAL EXTRAS Product Code Product Description M20090 KA100 heatsink cover (6kW model only) F80001 Fuse ‘boot-type’ cover (for 6mm x 32mm fuse) A403001 Manual (5K) Potentiometer Knob and Leads PRODUCT CODE AND RELATED PRODUCT CODE Product Code Product Description A407253-HV PR1- (DIN-F) -1.5kW A407254-HV PR1- (DIN-F) - 3kW A407255-HV PR1- (DIN-F) - 6kW