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 Number of Digits
RS stock no. 815-8312
Mfr. Part No.APM-AMP-ANN
BrandTrumeter
R 1,188.85
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP -
RS stock no. 914-6701
Mfr. Part No.APM-CT-APO
BrandTrumeter
R 1,427.46
Each
units
- AC - 68mm 68mm 53mm 0.5 % -10°C +60°C CE, CULus Listed 0 → 10000 (External CT) A, 0 → 5 (CT Output Current) A - - -
RS stock no. 815-8318
Mfr. Part No.APM-AMP-APO
BrandTrumeter
R 1,930.23
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP -
RS stock no. 244-935
Mfr. Part No.R68M-30A-001
BrandHOBUT
R 493.89
Each
units
30A DC Moving Magnet 63.5mm 62.5mm 35mm ±8 % -20°C +40°C - 0/30A - R68M -
RS stock no. 392-8428
Mfr. Part No.9600200100S
R 626.84
Each
units
20mA DC Moving Magnet 92mm 92mm - Class 1.5 - - - 20mA - - -
RS stock no. 392-8557
Mfr. Part No.9642000000B
R 628.64
Each
units
20mA DC Moving Magnet 92mm 92mm 53mm Class 1.5 - +23°C - 0/4 → 20mA - - -
RS stock no. 886-1875
Mfr. Part No.EQ74-I1122N1CAW0ST
R 265.02
Each
units
5A AC Moving Iron 68mm 68mm 54mm - -10°C +55°C CE, DIN 40050, DIN 43701, DIN 43718, DIN 43802, DIN 43807, DIN 46200, DIN 46282, DIN EN 60051, DIN IEC 61554, EC 51, EC 529, IEC 1010, IS:1248, IS:9249, U, 2004 / 108 / EC (EMC Directive), 2006 / 95 / EC (Low Voltage Directive) and Amendment 93 / 68 / EEC 0 → 5A 0A Sigma -
RS stock no. 815-8321
Mfr. Part No.APM-AMP-ANO
BrandTrumeter
R 1,191.52
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP -
RS stock no. 196-8272
Mfr. Part No.IS 10992
R 1,338.68
Each
units
100µA DC Moving Coil 20.2mm 42.4mm 31.2mm ±2.5 % -25°C +55°C - - - - -
RS stock no. 259-561
BrandRS PRO
R 143.45
Each
units
100µA - - - 50mm 14mm ±20 % -10°C +55°C RoHS Compliant - - RS PRO -
RS stock no. 259-549
BrandRS PRO
R 143.63
Each
units
100µA - - - 50mm 14mm ±20 % -10°C +55°C RoHS Compliant - - RS PRO -
RS stock no. 244-862
Mfr. Part No.F3PAM1801-10A
BrandHOBUT
R 72.34
Each
units
10A DC Moving Iron - - 15mm ±8 % -20°C +40°C - 0/10A - F3PAM -
RS stock no. 886-1917
Mfr. Part No.EQ94-I1122N1CAW0ST
R 281.76
Each
units
5A AC Moving Iron 96mm 96mm 54mm - -10°C +55°C CE, DIN 40050, DIN 43701, DIN 43718, DIN 43802, DIN 43807, DIN 46200, DIN 46282, DIN EN 60051, DIN IEC 61554, EC 51, EC 529, IEC 1010, IS:1248, IS:9249, U, 2004 / 108 / EC (EMC Directive), 2006 / 95 / EC (Low Voltage Directive) and Amendment 93 / 68 / EEC 0 → 5A 0A Sigma -
RS stock no. 202-467
Mfr. Part No.EQB48 MB: WDL.5/10A SCALA: 0-100/200A
R 405.13
Each
units
200A AC Moving Iron 45mm 45mm 53mm Class 1.5 - +23°C - - - - -
RS stock no. 823-3605
Mfr. Part No.DCA5-20PC-1-DC1-RL-C
R 911.74
Each
units
- DC - 32.51mm 46.38mm 4.75mm ±0.15 % 0°C +60°C - - - - -
RS stock no. 313-514
Mfr. Part No.D481MCS75MV/4-001 0/30A
BrandHOBUT
R 858.21
Each
units
0/30A For Shunt 75mV DC Moving Coil 48mm 48mm 43mm Class 1.5 -25°C +40°C - 0/30A For Shunt 75mV - D48MC -
RS stock no. 163-8808
Mfr. Part No.PM-2/10A
BrandMonacor
R 409.24
Each
units
10A - Moving Coil - - 23mm Class 2 - - - - - PM-2 -
RS stock no. 196-8317
Mfr. Part No.IS 10996
R 1,342.28
Each
units
50µA DC Moving Coil 20.2mm 42.4mm 31.2mm ±2.5 % -25°C +55°C - - - - -
RS stock no. 810-3309
Mfr. Part No.DCA-20PC-5-DC1-RL-C
R 1,153.33
Each
units
- DC - 21.29mm 33.93mm 26.4mm ±0.15 % 0°C +60°C - - - - -
RS stock no. 388-5488
Mfr. Part No.CUB4I000
BrandRed Lion
R 2,583.49
Each
units
- DC - 33mm 68mm 49.8mm ±0.1 % 0°C +60°C - - - - 3.5