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. 332-1849
Mfr. Part No.DPM 342
BrandLascar
SGD106.20
Each
units
- - - 18mm 38mm 17.1mm ±0.1 % 0°C +50°C - - - -
RS Stock No. 312-808
Mfr. Part No.D72MIS5A/5-001
BrandHOBUT
SGD37.51
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. 905-5490
Mfr. Part No.CUB4CL30
BrandRed Lion
SGD361.85
Each
units
- - - 33mm 68mm 49.8mm - 0°C +60°C - 4 → 20 mA, 10 → 50 mA - CUB4
RS Stock No. 914-5391
Mfr. Part No.D72SD5A/0-600A
BrandHOBUT
SGD41.67
Each
units
0/600A For 600/5A 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 0/600A For 600/5A CT 0A D72SD
RS Stock No. 374-4595
Mfr. Part No.ACA-20PC-2-AC1-RL-C
SGD135.56
Each
units
- AC - 21.3mm 33.9mm - - 0°C +60°C - - - -
RS Stock No. 914-6704
Mfr. Part No.APM-CT-ANN
BrandTrumeter
SGD115.16
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. 183-212
Mfr. Part No.D72MIS5A6/2-001 NO DIAL
BrandHOBUT
SGD34.86
Each
units
0/5/30A AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/5/30A - D72SD
RS Stock No. 123-6777
Mfr. Part No.EQ44-I1112N1CAW0ST
SGD20.11
Each
units
5A AC Moving Iron 48mm 48mm - - - - - 0 → 5A 0A -
RS Stock No. 307-5568
Mfr. Part No.DMS-40PC-4/20S-24RL-C
SGD191.15
Each
units
- - - 22.3mm 53.8mm 26.34mm ±2 % 0°C +50°C - - - -
RS Stock No. 914-5379
Mfr. Part No.D72SD5A/0-100A
BrandHOBUT
SGD33.33
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. 163-8808
Mfr. Part No.PM-2/10A
BrandMonacor
SGD36.72
Each
units
10A - Moving Coil - - 23mm Class 2 - - - - - PM-2
RS Stock No. 374-4630
Mfr. Part No.ACA-20PC-2-DC1-RL-C
SGD135.54
Each
units
- AC - 21.3mm 33.9mm - - 0°C +60°C - - - -
RS Stock No. 815-8321
Mfr. Part No.APM-AMP-ANO
BrandTrumeter
SGD210.02
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 313-457
Mfr. Part No.D96MIS40A/1-001
BrandHOBUT
SGD44.03
Each
units
0/40A Direct Connected AC Moving Iron 96mm 96mm 38.5mm Class 1.5 -25°C +40°C - 0/40A Direct Connected - D96SD
RS Stock No. 914-5389
Mfr. Part No.D72SD5A/0-400A
BrandHOBUT
SGD41.67
Each
units
0/400A For 400/5A 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 0/400A For 400/5A CT 0A D72SD
RS Stock No. 254-9181
Mfr. Part No.DMS-20PC-4/20S-C
SGD116.78
Each
units
- - - 21.29mm 33.93mm 25mm ±1 % 0°C +60°C - - - -
RS Stock No. 446-2143
Mfr. Part No.DPM 742-BL
BrandLascar
SGD106.98
Each
units
- DC - 32mm 62mm 13mm ±0.1 % 0°C +50°C - - - -
RS Stock No. 810-3299
Mfr. Part No.DCA-20PC-4-DC4-RL-C
SGD103.53
Each
units
- DC - 21.29mm 33.93mm 26.4mm ±0.15 % 0°C +60°C - - - -
RS Stock No. 886-1926
Mfr. Part No.EQ94-I1322N1CAW0ST
SGD21.77
Each
units
10A 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 → 10A 0A Sigma
RS Stock No. 183-010
Mfr. Part No.D72SD5A/2-001 NO DIAL
BrandHOBUT
SGD47.47
Each
units
5A AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/5A - D72SD