X10647 UNITEDAUTOMATION

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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/

1 July 2025 | Issue: 9 Page 1 of 2

Variable AC Voltage Regulators PATFC X10647 Phase Angle Triac Firing Circuit 0044 (0) 1704-516 501 enquiries@united-automation.com www.united-automation.com CONTACT US: KEY FEATURES: Introducing the Phase Angle Triac Firing Circuit (PATFC), a versatile thick-film hybrid firing circuit designed for phase control, offering simple and efficient proportional control for driving triac power devices across various load applications. Upgrade your firing circuit with the Phase Angle Triac Firing Circuit (PATFC), offering precise phase control and reliable performance across a wide range of applications. Built with innovative thick film technology, it ensures efficient operation and simplified control for enhanced functionality.  Compact Thick Film Technology: Utilises advanced thick film technology for a compact and efficient design, ensuring reliable performance in demanding environments.  Simple Triggering Device: Offers a straightforward triggering mechanism, simplifying operation and enhancing usability for seamless integration into diverse applications. TECHNICAL SPECIFICATIONS Supply voltage 50V to 250V ac @ 50 to 60Hz Hysteresis (typical) 5% Power rating 5A (max.). Controlled conduction angle 10W (min.); 1kW (max.) Maximum gate current 50mA Storage temperature 0 to 65ºC Total conduction angle 0 to 160º Further Dimensions Overall (max.) 18(H) x 11(W) x 4(D) mm Lead pitch 5 & 2.5mm-pin S.I.L. type Lead length (max.) 10mm Lead diameter 0.5mm (typical) Body length 9mm Body width 11mm Body thickness 4mm APPLICATIONS:  Ovens  Electric Furnaces  Heating Tapes  Smelters  Quartz Lamps / Heat Lamps  Moulders  Dryers  Stress Relieving  Space Heating  Heating Mantles *Note: This product is unsuitable for use with inductive loads.

X10647 Variable AC Voltage Regulators PATFC Phase Angle Triac Firing Circuit 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 1 July 2025 | Issue: 9 Page 2 of 2 INSTALLATION DIMENSIONS & CONNECTIONS WARNING This unit requires fusing. All HAZARDOUS LIVE terminals - isolate supply before commencing any installation work. NOTE Front view - Lead connections are right to left (as above photo). Leads 1 to 2 are 2.5mm pitch; leads 2 to 3 are 5mm pitch. RECOMMENDATIONS FUSING It is recommended to use semiconductor (fast acting) type fuses or circuit breakers (semiconductor - MCB) for unit/device protection. On initial ‘switch on’ some loads may need an increased Factor of Safety (F of S) for unit and /or unit protection. Integral gate protection is provided) but further appropriate fusing should be integrated into the 12V supply (e.g., HRC F1A) and load circuit. See SRA Datasheet for further information. DOCUMENTS Other documents are available on request, which may be appropriate for your applications: Code Identity Description X10229 RFI Filtering recommendation – addressing EMC Directive 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 It is recommended that installation and maintenance of this equipment should be done with reference to the current edition of the I.E.T. regulations (BS7671) by suitably qualified/trained personnel. The regulations contain important requirements regarding the safety of electrical equipment. For International standards refer STANDARDS on D of C. OPTIONAL EXTRAS Product Code Product Description A403027 250kΩ Potentiometer PRODUCT CODE AND RELATED PRODUCT CODE Product Code Product Description D31410 PATFC Angle TRIAC Firing Circuit