The Circutor EC72 300V (code M10426) is a panel-mount moving iron voltmeter for alternating current circuits. It measures AC voltage up to 300 V with class 1.5 accuracy and fits a standard 72 x 72 mm panel cutout, operating directly from the measured circuit without any separate auxiliary power supply.Technical specifications: Model: EC72 300V Circutor code: M10426 EAN: 8433059003722 Measurement range: 300 V AC Accuracy: 1.5 % FE Scale: 90°, P1 Module size: 72 x 72 mm Depth: 49.2 mm Weight: 0.132 kg Frequency range: 20 to 100 Hz Power consumption: 1 to 4 VA Maximum continuous voltage: 1.5 x rated voltage; 2 x rated voltage for 5 s Insulation voltage: 2 kV at 50 Hz for 1 minute Front protection: IP 52 Terminal protection: IP 20 Working temperature: +10 to +30 °C Storage temperature: -25 to +40 °C Certification: CE Standards: BS 89, UNE-EN 60051, IEC 144, DIN 43780, IEC 51, UNE 21318 Features and benefits: No auxiliary power supply required - the instrument draws its operating power from the measured voltage circuit, reducing panel wiring complexity. True RMS measurement provides accurate voltage readings across a broad range of AC waveforms. Scales are interchangeable with EC48, EC72, EC96 and EM 45 series instruments, giving flexibility when reconfiguring panels. IP 52 rated front face protects the dial against dust ingress and water splashes in typical industrial enclosures. Frequency response from 20 to 100 Hz covers standard grid frequencies as well as variable-speed and generator applications. Applications: Continuous AC voltage monitoring on industrial switchboards and motor control centres. Voltage indication in power distribution cabinets where a compact 72 x 72 mm panel instrument is specified. Visual voltage checks in commercial building electrical installations and main distribution boards. Generator set and UPS output panels requiring direct, self-powered voltage indication. Also known as: Circutor EC72 300V, EC72 300V M10426, Circutor M10426 voltmeter, moving iron panel voltmeter 300 V, AC panel voltmeter 72 x 72 mm.
