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.