25A VARIABLE PHASE ANGLE REGULATOR AVR X10208 INTRODUCTION This fully variable, powerful phase angle regulator is a manually controlled, robust, compact, enclosed unit for direct or transformer coupled, single-phase loads. The high current triac, fuse terminals and all main parts are enclosed and mounted on an integral heatsink to ensure long life with reliable high ambient temperature operation. The large triac enables the unit to handle high in-rush currents with ample safety margin on industrial installations. APPLICATIONS Suitable for conventional resistive heating elements, including ovens, moulders, dryers and some inductive loads e.g. transformers and motors. FEATURES • Integral high speed fuse. • Built in heatsink. • High in-rush capability. • Single entry cable gland. • Control knob and dial supplied. INSTALLATION Fixing/Mounting/Dimensions SPECIFICATIONS: Mains voltage Min. Load current Max. RMS current Main control Peak one cycle surge Heatsink Max operating temp 110 or 230V ac ± 10% @ 50/60 Hz 200mA 25A. Integral 220K pot. 250A 1.3ºC/Watt 0-65ºC Isolation Classification Isolation voltage I2t for SCR fusing Offstate dv/dt Replacement Fuse Storage temp. Max. Cable entry Min. Level set Class II 2500V rms 250A2s 500V/ us 30A 660V SCR type -20ºC to +85ºC 2.5mm2 0-50% via integral cermet FUSING: It is recommended to use semiconductor (fast acting) type fuses or circuit breakers (Semiconductor - MCB) for unit protection. (See SRA Datasheet for further information). CE MARKING This product family carries a “CE marking”. These phase angle type controllers require a suitable remote filter. For information see recommendation section and contact our sales desk. (See Declaration of Conformity). RECOMMENDATION Other documents available on request, which may be appropriate for your applications. CODE IDENTITY DESCRIPTION X10229 RFI Filtering recommendations - addressing the 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; Fusing recommendations. AP02/4 COS UAL Conditions of sale NOTE It is recommended that installation and maintenance of this equipment should be done with reference to the current edition of the I.E.E. wiring regulations (BS7671) by suitably qualified/trained personnel. The regulations contain important requirements regarding safety of electrical equipment. (For International standards refer to I.E.C directive IEC 950). ORDER CODE State part number: AVR + (Mains supply voltage) Optional extras include F-series Filter. Note: When ordering a filter, the current the AVR is to be used at will be required. UNITED AUTOMATION LIMITED 1 Southport Business Park Southport, PR8 4HQ, U.K. Page No 2 of 2 Issue 2 Tel (01704)-565713 Fax (01704)-569760 17/07/98