Moving-iron panel meters are precision analog measuring instruments designed for AC current and AC voltage measurement in industrial electrical panels. They are suitable for frequency ranges of 15...400 Hz for current measurement and 15...100 Hz for voltage measurement, making them ideal for standard power systems as well as many non-standard AC applications. These instruments display the true RMS value of the waveform, which helps maintain accuracy even when the signal contains harmonics or distorted wave shapes. A key advantage of moving-iron measuring instruments is their ability to operate without polarity concern on the current transformer side, allowing flexible installation and simplified wiring. They are typically calibrated for sinusoidal AC, and for applications exceeding 100 A or involving high voltages, they should be used with measuring transformers for safe and accurate operation. Built for panel mounting, these meters are suited to electrical switchboards, control cabinets, and industrial monitoring systems where reliable analog indication is required. Their overload capacity follows DIN 43780 standards, with continuous overload up to 1.2 times rated value, short-duration overload up to 10 x IN for 5 seconds in ammeters, and up to 2 x UN for 5 seconds in voltmeters. The approximate setting time of 1 minute supports stable and readable indication for operational monitoring. For B2B buyers looking for robust panel-mounted AC measuring devices, moving-iron panel meters offer dependable performance, wide usability in industrial power measurement, and compatibility with transformer-based installations.
Key Features
| Features | Description |
|---|---|
| Measurement Type | AC current and AC voltage measurement |
| Frequency Range | 15...400 Hz for current; 15...100 Hz for voltage |
| True RMS Indication | Displays RMS value even with high harmonics |
| Installation Flexibility | Can be connected in any order on current transformer without polarity observation |
| Transformer Compatibility | Required for current above 100 A or high-voltage applications |
| Overload Capacity | 1.2 x rated value continuously; 10 x IN for 5 s in ammeters; 2 x UN for 5 s in voltmeters |
| Setting Time | Approximately 1 minute |
| Attributes | Description |
|---|---|
| Product Type | Moving-iron panel meter |
| Application | AC current and voltage measurement in electrical panels |
| Current Measurement Frequency Range | 15...400 Hz |
| Voltage Measurement Frequency Range | 15...100 Hz |
| Measured Value | RMS value |
| Waveform Compatibility | Suitable for sinusoidal AC and signals with harmonics |
| Connection Requirement | No polarity observation required on current transformer |
| Calibration | Normally calibrated for sinusoidal AC |
| Use with Measuring Transformers | Required above 100 A or for high voltages |
| Overload Standard | DIN 43780 |
| Continuous Overload Capacity | 1.2 times rated value |
| Short Duration Overload in Ammeter | 10 x IN for 5 seconds |
| Short Duration Overload in Voltmeter | 2 x UN for 5 seconds |
| Setting Time | Approximately 1 minute |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
It indicates the RMS value of the waveform with only minor influence on accuracy from high harmonics, making it suitable for AC systems where waveform distortion is present.
No. For currents above 100 A, the instrument must be connected through a measuring transformer to ensure safe and accurate measurement.
No. Moving-iron instruments can be connected in any order without observing polarity on the current transformer.
The voltage measurement frequency range is 15...100 Hz.
It supports continuous overload up to 1.2 times the rated value, short-duration overload up to 10 x IN for 5 seconds in ammeters, and up to 2 x UN for 5 seconds in voltmeters.
Country Of Origin: Spain
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Krishnagiri , India
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GST- 33bbeps6709j1ze