The Circutor EC72 75A (code M1022B) is a moving iron panel ammeter for visual AC current monitoring. It measures alternating current up to 75 A with a 90-degree scale and class 1.5 accuracy, housed in a compact 72 x 72 mm panel-mount format. No auxiliary power supply is required for standard operation.

Technical specifications:

• Model: EC72 75A
• Circutor code: M1022B
• EAN: 8433059000967
• Product type: Moving iron ammeter
• Measurement range: 75 A
• Accuracy class: 1.5 % FE
• Scale: 90-degree arc, P2
• Module size (panel cutout): 72 x 72 mm
• Overall dimensions (W x H x D): 72 x 72 x 49.2 mm
• Mounting: Panel
• Weight: 0.16 kg
• Frequency range: 20 to 100 Hz
• 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, 50 Hz, less than 1 min
• Front protection: IP 52
• Terminal protection: IP 00
• Working temperature: +10 to +30 C
• Storage temperature: -25 to +40 C
• Maximum installation altitude: 2000 m
• Standards: BS 89, UNE-EN 60051, IEC 144, DIN 43780, IEC 51, UNE 21318
• Certification: CE

Features and benefits:

• Requires no auxiliary power supply, simplifying panel wiring and reducing installation steps.
• True RMS measurement from 100 mA to 100 A delivers accurate current readings across a wide range of AC loads.
• Scales are interchangeable across the EC48, EC72, EC96, EM 45, EC 72 FA and EC 96 FA families, allowing reconfiguration without replacing the instrument body.
• High overload tolerance – 40 In for 1 second – protects the instrument during short-circuit fault conditions.
• IP 52 front protection resists dust ingress and minor water splashing at the panel face.

Applications:

• Motor control centres requiring continuous AC load current monitoring at the panel face.
• Low-voltage distribution boards and main switchgear panels.
• Building electrical installations where direct visual current indication is needed.
• Industrial machinery and process control panels for quick current status checks.

Also known as: Circutor EC72 75A, EC72 75A M1022B, moving iron panel ammeter 75 A, 72 x 72 mm AC ammeter, analogue panel ammeter 75A.