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 Priced to Clear Series
RS Stock No. 815-8318
Mfr. Part No.APM-AMP-APO
BrandTrumeter
£71.38
Each
Units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - - APM-AMP
RS Stock No. 446-2143
Mfr. Part No.DPM 742-BL
BrandLascar
£52.95
Each
Units
- DC - 32mm 62mm 13mm ±0.1 % 0°C +50°C - - - - -
RS Stock No. 901-0365
BrandRS PRO
£11.11
Each
Units
20A AC Moving Iron 92mm 92mm 45mm ±1.5 % -25°C +50°C CE, RoHS Compliant, TUV Certified, UL E327849 0 → 40A 0A - RS PRO
RS Stock No. 815-8312
Mfr. Part No.APM-AMP-ANN
BrandTrumeter
£65.44
Each
Units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - - APM-AMP
RS Stock No. 815-8321
Mfr. Part No.APM-AMP-ANO
BrandTrumeter
£71.38
Each
Units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - - APM-AMP
RS Stock No. 312-808
Mfr. Part No.D72MIS5A/5-001
BrandHOBUT
£17.68
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. 183-212
Mfr. Part No.D72MIS5A6/2-001 NO DIAL
BrandHOBUT
£16.43
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. 312-836
Mfr. Part No.D72MIS60A/1-001
BrandHOBUT
£20.25
Each
Units
0/60A Direct Connected AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/60A Direct Connected - - D72SD
RS Stock No. 332-1849
Mfr. Part No.DPM 342
BrandLascar
£48.45
Each
Units
- - - 18mm 38mm 17.1mm ±0.1 % 0°C +50°C - - - - -
RS Stock No. 312-820
Mfr. Part No.D72MIS40A/1-001
BrandHOBUT
£18.03
Each
Units
0/40A Direct Connected AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/40A Direct Connected - - D72SD
RS Stock No. 163-8757
Mfr. Part No.PM-2/100UA
BrandMonacor
£19.81
Each
Units
100µA - Moving Coil - - 23mm Class 2 - - - - - - PM-2
RS Stock No. 886-1831
Mfr. Part No.EQ44-I1422N1CAW0ST
£10.99
Each
Units
15A AC Moving Iron 48mm 48mm 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 → 15A 0A - Sigma
RS Stock No. 315-9515
Mfr. Part No.PD721MCS50A/1-001
BrandHOBUT
£50.53
Each
Units
0/50A Direct Connected DC DC Moving Coil 72mm 72mm 30.5mm Class 1.5 -25°C 40°C - 0/50A Direct Connected DC - - PD72MC
RS Stock No. 259-549
BrandRS PRO
£6.70
Each
Units
100µA - - - 50mm 14mm ±20 % -10°C +55°C RoHS Compliant - - - RS PRO
RS Stock No. 259-561
BrandRS PRO
£6.84
Each
Units
100µA - - - 50mm 14mm ±20 % -10°C +55°C RoHS Compliant - - - RS PRO
RS Stock No. 823-3605
Mfr. Part No.DCA5-20PC-1-DC1-RL-C
£44.29
Each
Units
- DC - 32.51mm 46.38mm 4.75mm ±0.15 % 0°C +60°C - - - - -
RS Stock No. 312-757
Mfr. Part No.D48MIS25A/1-002
BrandHOBUT
£19.45
Each
Units
0/25A Direct Connected AC Moving Iron 48mm 48mm 43mm Class 1.5 -25°C +40°C - 0/25A Direct Connected - - D48SD
RS Stock No. 254-9181
Mfr. Part No.DMS-20PC-4/20S-C
£61.65
Each
Units
- - - 21.29mm 33.93mm 25mm ±1 % 0°C +60°C - - - - -
RS Stock No. 202-467
Mfr. Part No.EQB48 MB: WDL.5/10A SCALA: 0-100/200A
£18.24
Each
Units
200A AC Moving Iron 45mm 45mm 53mm Class 1.5 - +23°C - - - - -
RS Stock No. 313-407
Mfr. Part No.D72SD5A/2-001 SCALED 0/5A
BrandHOBUT
£18.03
Each
Units
0/5A Direct Connected AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/5A Direct Connected - - D72SD