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Square Type Moving Iron AC Voltmeters1. Feature: W/O cover on the movement(C), With cover on the movement(F)[the former is default]2. Model: 90° SF-144-3 SF-96-3 SF-72-3 SF-48-3> Measuring the alternative voltage with frequency ranging from 15Hz to 100Hz, these meters indicate true RMS values and are substantially independent of system waveform.The nominal mark is T.(br) Accuracy: Class1.5 3. Specification: 30V,50V,75V,100V,120V,150V,200V,250V,450V,500V,600V. For 450-450KV, meters can use potential transformer with secondary voltage 100V or 110V4. Case: Non-combustile ABS plastic material is used for making SF series'external case,and PPO plastic material is used for SF series's base; while Non-combustible PC plastic material is used for making SFT series'external case and base. Both of which will not suffer deformity under long-term use at 70 and 120 respectively.5. Mounting: SF series is flush mounting with bracket.
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Square Type Moving Iron AC Voltmeters