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. 244-935
Mfr. Part No.R68M-30A-001
BrandHOBUT
$47.31
Each
units
30A DC Moving Magnet 63.5mm 62.5mm 35mm ±8 % -20°C +40°C - 0/30A - R68M
RS Stock No. 392-8591
Mfr. Part No.9602500000B
$62.43
Each
units
25A DC Moving Magnet 92mm 92mm 53mm Class 1.5 - +23°C - 25A - -
RS Stock No. 244-884
Mfr. Part No.F3PAM1801-20A
BrandHOBUT
$13.01
Each
units
20A DC Moving Iron - - 15mm ±8 % -20°C +40°C - 0/20A - F3PAM
RS Stock No. 244-941
Mfr. Part No.R68M-50A-001
BrandHOBUT
$46.93
Each
units
50A DC Moving Magnet 63.5mm 62.5mm 35mm ±8 % -20°C +40°C - 0/50A - R68M
RS Stock No. 313-407
Mfr. Part No.D72SD5A/2-001 SCALED 0/5A
BrandHOBUT
$52.37
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
RS Stock No. 815-8321
Mfr. Part No.APM-AMP-ANO
BrandTrumeter
$265.16
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 886-2023
Mfr. Part No.PQ94-I12L2N1CAW0ST
$44.56
Each
units
1mA DC Moving Coil 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 Maximum of 1mA - Sigma
RS Stock No. 312-729
Mfr. Part No.D48MIS5A/2-004
BrandHOBUT
$45.48
Each
units
0/5A AC Moving Iron 48mm 48mm 43mm Class 1.5 -25°C +40°C - 0/5A - D48SD
RS Stock No. 313-514
Mfr. Part No.D481MCS75MV/4-001 0/30A
BrandHOBUT
$87.75
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. 446-2143
Mfr. Part No.DPM 742-BL
BrandLascar
$151.77
Each
units
- DC - 32mm 62mm 13mm ±0.1 % 0°C +50°C - - - -
RS Stock No. 815-8312
Mfr. Part No.APM-AMP-ANN
BrandTrumeter
$186.05
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 244-862
Mfr. Part No.F3PAM1801-10A
BrandHOBUT
$10.36
Each
units
10A DC Moving Iron - - 15mm ±8 % -20°C +40°C - 0/10A - F3PAM
RS Stock No. 905-3457
Mfr. Part No.DMK01
BrandLovato
$157.08
Each
units
- AC - 45mm 92mm 105mm - -20°C +60°C CSA C22.2 n° 14, CULus Certification, EAC Certification, IEC/EN 61000-6-2, IEC/EN 61000-6-3, IEC/EN 61010-1, UL508 0.05 → 5.75A - DMK
RS Stock No. 810-3315
Mfr. Part No.DCA-20PC-6-DC4-RL-C
$104.72
Each
units
- DC - 21.29mm 33.93mm 26.4mm ±0.15 % 0°C +60°C - - - -
RS Stock No. 202-451
Mfr. Part No.EQB 48 MB: 10/20A SCALA: 10/20A
$43.89
Each
units
20A AC Moving Iron 45mm 45mm 53mm Class 1.5 - +23°C - - - -
RS Stock No. 315-9515
Mfr. Part No.PD721MCS50A/1-001
BrandHOBUT
$120.54
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
$15.87
Each
units
100µA - - - 50mm 14mm ±20 % -10°C +55°C RoHS Compliant - - RS PRO
RS Stock No. 886-1923
Mfr. Part No.EQ94-I1522N1CAW0ST
$25.16
Each
units
20A 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 → 20A 0A Sigma
RS Stock No. 221-2839
Mfr. Part No.DMS-30LCDA-4/20S-C
$136.57
Each
units
- - - 22.3mm 53.8mm 21.88mm ±1 % 0°C +60°C - - - -
RS Stock No. 815-8315
Mfr. Part No.APM-AMP-APN
BrandTrumeter
$175.57
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP