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RM858-X Series Featured Image

RM858-X Series

The RM858-X series is a lineup of compact single-phase digital meters for AC power monitoring, including a dedicated ammeter (RM858AI-□X1), voltmeter (RM858AV-□X1), frequency meter (RM858F-□X1), and all-in-one combination meter (RM858UIF-□X1). All units feature a high-clarity LED display and are compatible with multiple standard panel cutout sizes (76×76, 91×91, 67×67, 45×45, 91×45 mm) for flexible installation. The ammeter supports 5A AC current input with a 1:1–5000 CT ratio; the voltmeter and frequency meter run on 80–500V AC input with no auxiliary power required. The combination meter integrates voltage, current and frequency measurement in a single device, delivering reliable, space-saving power monitoring for industrial and commercial electrical systems.


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  • RM858-X Series
  • RM858-X Series
  • RM858-X Series
  • RM858-X Series

Product Detail

Single phase AC digital ammeter

RM858A-口X1

Model: RM858AI-□X1

Hole size(mm): 76×76,91×91,67×67,45×45,91×45.

Display data: single phase AC current 5A,CT:1-5000

Display mode:LED display

Network: single phase

Auxiliary Power:

Single phase AC digital voltmeter

RM858AV-□X1

Model:RM858AV-□X1

Hole size(mm):76×76,91×91,67×67,45×45,91×45.

Display data:single phase AC voltage 80-500V

Display mode:LED display

Network:single phase

Auxiliary Power:no

Single phase frequency meter

RM858F-□X1

Model:RM858F-□X1

Hole size(mm):76×76,91×91,67×67,45×45,91×45.

Display data: single phase AC voltage 80-500V

Display mode:LED display

Network: single phase

Auxiliary Power:no

Single phase combination meter

RM858UIF-口X1

Model: RM858UIF-□X1

Hole size(mm):76×76,91×91,67×67,45×45,91×45.

Display data: single phase AC80-500V,5A,CT:1-5000

Display mode:LED display

Network: single phase

Auxiliary Power:no

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