Ammeters

Ammeters provide an accurate way of measuring and displaying current within a circuit. They are designed for panel mounting and are used across a range of industrial applications. These metered instruments measure current flow in amperes. The ampere level of the current is displayed on using either an analogue scale or digital readout. The current is presented in draw (how much current flows) or continuity (how uninterruptable the current is). Learn more about the different types of ammeters in our complete guide to ammeters.

What are digital panel ammeters?

Digital ammeters feature a programmable bar-graph scale that allows both minimum and maximum values to be set, enabling a custom scale, dependant on the needs of the application. The digital display can be programmed to change colour, flash or change annunciator message. These panel meters often feature triggers that can be programmed to sound an alarm when a critical point has been reached. The digital meter can also be set to trip when values exceed, fall behind, are between or are outside set points.

What are analogue panel ammeters?

Analogue panel ammeters determine whether erratic loads exist in electrical circuits. High ampere levels may indicate short-circuiting, unintentional grounding or indicate a defective component in the network. Low current flow points to high resistance or weak flow in the circuit.

Types of analogue panel ammeters

Analogue panel ammeters come in five types:

  • Moving coil: where magnetic deflection causes the coil to move when the current passes through the coil
  • Moving magnet: where the coil is mounted in the metered case, and a permanent magnet moves the needle
  • Moving iron: where an iron needle moves in response to an electromagnetic force from the coil.
  • Electrodynamic: where an electrodynamic magnet responds to alternating and direct current movement
  • Hot wire: where current passes through a wire that expands when heated, indicating low or high ampere levels

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Description Price Maximum Value Current Type Moving Element Cutout Height Cutout Width Depth Meter Accuracy Minimum Temperature Maximum Temperature Approvals Measurement Range Minimum Displayed Value Series
RS Stock No. 201-896
Mfr. Part No.EQB 72 MB: WDL.5/10A SCALA: 0-50/100A
HK$180.58
Each
units
100A AC Moving Iron 68mm 68mm 53mm Class 1.5 - +23°C - - - -
RS Stock No. 202-782
Mfr. Part No.EQB 72 MB: WDL.5/10A SCALA: 0-200/400A
HK$180.58
Each
units
400A AC Moving Iron 68mm 68mm 53mm Class 1.5 - +23°C - - - -
RS Stock No. 287-2043
Mfr. Part No.PD72MIS10A2/1-001
BrandHOBUT
HK$286.34
Each
units
0/10/20A Direct Connected AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/10/20A Direct Connected - PD72SD
RS Stock No. 221-2839
Mfr. Part No.DMS-30LCDA-4/20S-C
HK$616.10
Each
units
- - - 22.3mm 53.8mm 21.88mm ±1 % 0°C +60°C - - - -
RS Stock No. 653-7700
Mfr. Part No.CUB5IR00
BrandRed Lion
HK$1,448.40
Each
units
- DC - 33mm 68mm 43.4mm - -35°C +75°C - - - -
RS Stock No. 392-9128
Mfr. Part No.9651050100B
HK$202.40
Each
units
100A AC Moving Iron 92mm 92mm 53mm Class 1.5 - +23°C - - - -
RS Stock No. 392-8620
Mfr. Part No.9601500000B
HK$296.41
Each
units
15A DC Moving Magnet 92mm 92mm 53mm Class 1.5 - +23°C - 15A - -
RS Stock No. 815-8318
Mfr. Part No.APM-AMP-APO
BrandTrumeter
HK$914.39
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 815-8312
Mfr. Part No.APM-AMP-ANN
BrandTrumeter
HK$666.94
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 914-5379
Mfr. Part No.D72SD5A/0-100A
BrandHOBUT
HK$136.82
Each
units
0/100A For 100/5A CT AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C BS89, CE, DIN 43700, DIN 43802, IEC 51, UL 94V0, UL 94V1 0/100A For 100/5A CT 0A D72SD
RS Stock No. 798-3785
Mfr. Part No.DMK11R1
BrandLovato
HK$970.00
Each
units
- AC - 45mm 91mm 105mm ±0.5 % -20°C +60°C - - - -
RS Stock No. 374-4602
Mfr. Part No.ACA-20PC-3-AC1-RL-C
HK$661.03
Each
units
- AC - 21.3mm 33.9mm - - 0°C +60°C - - - -
RS Stock No. 313-520
Mfr. Part No.D481MCS75MV/4-001 0/100A
BrandHOBUT
HK$435.52
Each
units
0/100A For Shunt 75mV DC Moving Coil 48mm 48mm 43mm Class 1.5 -25°C +40°C - 0/100A For Shunt 75mV - D48MC
RS Stock No. 183-111
Mfr. Part No.D96MIS5A/2-001 NO DIAL
BrandHOBUT
HK$222.53
Each
units
5A AC Moving Iron 96mm 96mm 58.5mm Class 1.5 -25°C +40°C - 0/5A - D96SD
RS Stock No. 259-561
BrandRS PRO
HK$69.77
Each
units
100µA - - - 50mm 14mm ±20 % -10°C +55°C RoHS Compliant - - RS PRO
RS Stock No. 259-549
BrandRS PRO
HK$69.77
Each
units
100µA - - - 50mm 14mm ±20 % -10°C +55°C RoHS Compliant - - RS PRO
RS Stock No. 313-413
Mfr. Part No.D72MIS10A/1-002
BrandHOBUT
HK$203.22
Each
units
0/10A Direct Connected AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/10A Direct Connected - D72SD
RS Stock No. 312-808
Mfr. Part No.D72MIS5A/5-001
BrandHOBUT
HK$203.22
Each
units
FSD 0/5A Dual Scale 0/10A & 0/3A AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - FSD 0/5A Dual Scale 0/10A & 0/3A - D72SD
RS Stock No. 254-9181
Mfr. Part No.DMS-20PC-4/20S-C
HK$582.02
Each
units
- - - 21.29mm 33.93mm 25mm ±1 % 0°C +60°C - - - -
RS Stock No. 287-2166
Mfr. Part No.PD72MIS5A2/2-001 0/500/1000A
BrandHOBUT
HK$284.63
Each
units
0/500/100A For 500/5A CT AC Moving Iron 72mm 72mm 30.5mm Class 1.5 -25°C +40°C - 0/500/100A For 500/5A CT - -
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