The Circutor EC72 500V (code M10428) is a moving iron AC voltmeter for direct panel mounting in a 72 x 72 mm cutout. It measures alternating voltages up to 500 V with a class 1.5 accuracy and a 90-degree deflection scale, drawing power directly from the measured circuit without any auxiliary supply.

Technical specifications:

• Model: EC72 500V
• Circutor code: M10428
• EAN: 8433059003746
• Measurement range: 500 V AC
• Accuracy class: 1.5% FE
• Scale: 90, P1
• Panel cutout (modules): 72 x 72 mm
• Overall dimensions (W x H x D): 72 x 72 x 49.2 mm
• Weight: 0.136 kg
• Mounting: Panel
• Front protection: IP 52
• Terminal protection: IP 20
• Working temperature: +10 to +30 C
• Storage temperature: -25 to +40 C
• Consumption: 1 to 4 VA
• Operating frequency range: 20 to 100 Hz
• Maximum continuous voltage: 1.5 x rated voltage; 2 x rated voltage for 5 s
• Insulation voltage: 2 kV, 50 Hz, 1 min
• Standards: BS 89, UNE-EN 60051, IEC 144, DIN 43780, IEC 51, UNE 21318
• Certification: CE

Features and benefits:

• Operates solely from the measured circuit – no separate auxiliary supply wiring or terminals required.
• Scales are interchangeable across the EC48, EC72, EC96, and EM 45 series, reducing spare-parts inventory and simplifying field replacement.
• IP 52 front protection guards the face against dust ingress and splash, suited to industrial panel environments.
• Wide frequency acceptance from 20 to 100 Hz covers non-standard supply frequencies and generator outputs.
• Compact 72 x 72 mm panel format fits standard DIN enclosure cutouts across the full CEC 96 range (48, 72, 96, and 144 mm boxes).

Applications:

• Continuous voltage monitoring in industrial switchgear and motor-control panels.
• Mains voltage supervision in building electrical distribution boards.
• Generator and UPS output voltage indication at the panel face.
• Power distribution cabinets where a compact, self-powered analog voltmeter is required.

Also known as: Circutor EC72 500V, EC72 500V M10428, moving iron voltmeter 500V, panel voltmeter 72×72, AC analog panel voltmeter.