The Circutor EC72 100A (code M1022C) is a moving iron panel ammeter for alternating current measurement up to 100 A. It mounts in a standard 72 x 72 mm panel cutout and provides true RMS current readings at Class 1.5 accuracy across a frequency range of 20 to 100 Hz. No auxiliary power supply is required for this model.

Technical specifications:

• Model: EC72 100A
• Circutor code: M1022C
• EAN: 8433059000974
• Measurement range: 100 A AC
• Accuracy class: 1.5% FE
• Scale: 90, P2
• Panel cutout: 72 x 72 mm
• Overall depth: 49.2 mm
• Weight: 0.24 kg
• Mounting: Panel
• Front protection: IP 52
• Terminal protection: IP 00
• Working temperature: +10 to +30 C
• Storage temperature: -25 to +40 C
• Measurement: True RMS
• Consumption: 0.3 to 1.5 VA
• Frequency range: 20 to 100 Hz
• Overload capacity: 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)
• Standards: BS 89, UNE-EN 60051, IEC 144, DIN 43780, IEC 51, UNE 21318
• Certifications: CE

Features and benefits:

• No auxiliary power supply needed, simplifying panel wiring and reducing component count
• Exchangeable scales are compatible with EC48, EC72, EC96, EM 45, EC 72 FA, and EC 96 FA instruments, enabling flexible reconfiguration
• True RMS measurement delivers accurate readings independent of waveform shape
• High short-time overload tolerance – up to 40 times nominal current for 1 s – protects the meter during fault events
• IP 52 front protection suits enclosed panel installations in demanding environments

Applications:

• Visual current monitoring in AC distribution boards and main switchboards
• Current indication in motor control centres and industrial control panels
• Quick visual status checking of AC circuit load levels
• Panel instrumentation in building services and industrial installations requiring a 72 x 72 mm format meter

Also known as: Circutor EC72 100A, EC72 100A M1022C, moving iron ammeter 100A, panel ammeter 72×72, Circutor M1022C.