The Circutor EC72 20A (code M10225) is a panel-mounted moving iron ammeter for monitoring alternating current up to 20 A. It fits a 72 x 72 mm panel cutout and requires no auxiliary power supply, operating entirely from the measured current circuit. A 90-degree scale with Class 1.5 accuracy delivers a clear, quick visual reading of current state.

Technical specifications:

• Model: EC72 20A
• Circutor code: M10225
• EAN: 8433059000837
• Product type: Moving iron ammeter
• Measurement range: 20 A
• Scale: 90, P2
• Accuracy class: 1.5 (1.5% FE)
• Module size (panel cutout): 72 x 72 mm
• Overall dimensions (W x H x D): 72 x 72 x 49.2 mm
• Fastening: Panel mount
• Weight: 0.138 kg
• Frequency range: 20 to 100 Hz
• Power consumption: 0.3 to 1.5 VA
• Allowable overload: 1.2 In continuous; 5 In for 30 s; 10 In for 5 s; 40 In for 1 s
• Insulation voltage: 2 kV at 50 Hz (less than 1 min)
• Front protection class: IP 52
• Terminal protection class: IP 00
• Operating temperature: +10 to +30 C
• Storage temperature: -25 to +40 C
• Maximum installation altitude: 2000 m
• 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 meter draws its operating energy from the measured current circuit alone, reducing panel wiring complexity and eliminating a separate supply connection.
• Exchangeable scales are compatible with EC48, EC72, EC96, EM 45, EC 72 FA, and EC 96 FA series instruments, allowing the measurement range to be changed without replacing the meter body.
• Generous overload tolerance – rated for 40 In for 1 s and 5 In for 30 s – gives the meter resilience against transient fault currents without damage.
• IP 52-rated front face protects the display against dust ingress and water spray, making the meter suitable for industrial switchgear and panel board environments.
• Frequency range of 20 to 100 Hz covers standard AC industrial systems, including those operating outside the nominal 50 Hz supply.

Applications:

• Continuous load current monitoring in distribution switchgear and panel boards.
• Current supervision in motor control centers for quick visual detection of overload conditions.
• Current indication on industrial machinery and process equipment control panels.
• General AC electrical installations where a self-powered, panel-flush current indicator up to 20 A is required.

Also known as: Circutor EC72 20A, EC72 20A M10225, Circutor M10225, moving iron panel ammeter 72×72, panel ammeter 20 A.