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. 374-4602
Mfr. Part No.ACA-20PC-3-AC1-RL-C
€94.28
Each
units
- AC - 21.3mm 33.9mm - - 0°C +60°C - - - - -
RS Stock No. 815-8318
Mfr. Part No.APM-AMP-APO
BrandTrumeter
€111.70
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP -
RS Stock No. 914-5382
Mfr. Part No.D72SD5A/0-200A
BrandHOBUT
€20.42
Each
units
0/200A For 200/5A 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 0/200A For 200/5A CT 0A D72SD -
RS Stock No. 815-8312
Mfr. Part No.APM-AMP-ANN
BrandTrumeter
€83.81
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP -
RS Stock No. 815-8315
Mfr. Part No.APM-AMP-APN
BrandTrumeter
€81.77
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP -
RS Stock No. 392-8636
Mfr. Part No.9600600100B
€33.75
Each
units
100A DC Moving Coil 92mm 92mm 53mm Class 1.5 - +23°C - 60mV - - -
RS Stock No. 332-1849
Mfr. Part No.DPM 342
BrandLascar
€64.88
Each
units
- - - 18mm 38mm 17.1mm ±0.1 % 0°C +50°C - - - - -
RS Stock No. 313-407
Mfr. Part No.D72SD5A/2-001 SCALED 0/5A
BrandHOBUT
€22.98
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. 202-805
Mfr. Part No.EQB72 MB: 25/50A SCALA: 25/50A
€22.58
Each
units
50A AC Moving Iron 68mm 68mm 53mm Class 1.5 - +23°C - - - - -
RS Stock No. 254-9175
Mfr. Part No.DMS-30PC-4/20S-24RL-C
€85.53
Each
units
- - - 22.3mm 53.8mm - ±1 % 0°C +60°C - - - - -
RS Stock No. 823-3586
Mfr. Part No.ACA-20RM-4-AC4-RL-C
€107.47
Each
units
- AC - 35.56mm 53.34mm 6.35mm ±0.4 % 0°C +60°C - - - - -
RS Stock No. 886-1897
Mfr. Part No.EQ74-I2022N1CAW0ST
€13.60
Each
units
60A AC Moving Iron 72mm 72mm 62mm - -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 → 60A 0A Sigma -
RS Stock No. 315-9515
Mfr. Part No.PD721MCS50A/1-001
BrandHOBUT
€64.40
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. 315-9492
Mfr. Part No.PD721MCS5A/2-001
BrandHOBUT
€59.57
Each
units
0/5A Direct Connected DC DC Moving Coil 72mm 72mm 30.5mm Class 1.5 -25°C +40°C - 0/5A Direct Connected DC - PD72MC -
RS Stock No. 313-491
Mfr. Part No.D481MCS75MV/4-001 0/3A
BrandHOBUT
€49.26
Each
units
0/3A For Shunt 75mV DC Moving Coil 48mm 48mm 43mm Class 1.5 -25°C +40°C - 0/3A For Shunt 75mV - D48MC -
RS Stock No. 392-8507
Mfr. Part No.9600099995B
€33.75
Each
units
25A DC Moving Magnet 92mm 92mm - Class 1.5 - - - 0 → 60mV - - -
RS Stock No. 392-9134
Mfr. Part No.9600099995B
€33.75
Each
units
20mA DC Moving Coil 92mm 92mm - Class 1.5 - - - 0/4 → 20mA - - -
RS Stock No. 183-212
Mfr. Part No.D72MIS5A6/2-001 NO DIAL
BrandHOBUT
€21.36
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. 815-8321
Mfr. Part No.APM-AMP-ANO
BrandTrumeter
€68.23
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP -
RS Stock No. 798-3785
Mfr. Part No.DMK11R1
BrandLovato
€104.17
Each
units
- AC - 45mm 91mm 105mm ±0.5 % -20°C +60°C - - - - -