Ammeter (moving iron) with switch Wiring Diagram A range of moving iron AC Ammeters with integral phase selection switch in 72 or 96mm square DIN format for use on AC supplies operating from current transformers with 5 amp or 1 amp secondaries. Specify the current transformer primary and scale when ordering. Application Type Code C/T Sec. The EC72/96 FA Ammeter with integral manual changeover switch is specifically designed to measure the currents in each phase of a three phase AC system. EC72FA EC96FA 2 27 391 2 27 395 …/5A …/5A Movement Scale 900 Two times overscale Consumption Current transformers 0.3 VA …/5A …/1A (option) The switch has four positions Off - Phase 1 (L1) Phase 2 (L2) - Phase 3 (L3). Overload 1.2 In permanent 2 In for 30 seconds The scale is 90 degrees with two times overscale and zeroing adjustment. Frequency (please specify) Class limits 50Hz Class limits 60Hz 50 or 60Hz 45 to 55Hz 55 to 65Hz Isolating voltage 2000V for 1 minute Temperature Ambient range -250C…+400C Protection Case Terminals IP52 IP20 (with cover) Weight 0.275 Kg The switch design ensures that the secondaries of the current transformers are shorted out during changeover and any overvoltage produced is eliminated. Dimensions a b c d Cutout EC72FA 72 67.2 43.5 5.7 68sq EC96FA 96 91 43.5 5.7 92sq Standards IEC51, VDE410, DIN43 780, BS89, UL94, EN60051. Options Tropicalisation IP54 or IP55 protection Anti-reflection glass Makrolon glass Grey frame RAL 7037 Starkstrom 256 Field End Rd Eastcote Ruislip Middx HA4 9UW Tel. 020 8868 3732 VISIT OUR WEBSITE AT WWW.STARKSTROM.COM DS97213.DOC - Page 1 of 1 - Issue 1 - 16.1.98