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. 446-2143
Mfr. Part No.DPM 742-BL
BrandLascar
MYR301.02
Each
units
- DC - 32mm 62mm 13mm ±0.1 % 0°C +50°C - - - -
RS Stock No. 315-9492
Mfr. Part No.PD721MCS5A/2-001
BrandHOBUT
MYR321.34
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. 254-9181
Mfr. Part No.DMS-20PC-4/20S-C
MYR325.19
Each
units
- - - 21.29mm 33.93mm 25mm ±1 % 0°C +60°C - - - -
RS Stock No. 196-8468
Mfr. Part No.IS 11009
MYR346.38
Each
units
20mA DC Moving Coil 32.3mm 73.7mm 30.5mm ±1.5 % -25°C +55°C - - - -
RS Stock No. 312-820
Mfr. Part No.D72MIS40A/1-001
BrandHOBUT
MYR123.99
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. 313-520
Mfr. Part No.D481MCS75MV/4-001 0/100A
BrandHOBUT
MYR265.73
Each
units
0/100A For Shunt 75mV DC Moving Coil 48mm 48mm 43mm Class 1.5 -25°C +40°C - 0/100A For Shunt 75mV - D48MC
RS Stock No. 815-8315
Mfr. Part No.APM-AMP-APN
BrandTrumeter
MYR309.30
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 312-836
Mfr. Part No.D72MIS60A/1-001
BrandHOBUT
MYR135.28
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. 196-8654
Mfr. Part No.IS 11026
MYR315.18
Each
units
20mA DC Moving Coil 55.5mm 121mm 30.2mm ±1.5 % -25°C 55°C - - - -
RS Stock No. 313-413
Mfr. Part No.D72MIS10A/1-002
BrandHOBUT
MYR102.13
Each
units
0/10A Direct Connected AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/10A Direct Connected - D72SD
RS Stock No. 313-485
Mfr. Part No.D481MCS75MV/4-001 0/1A
BrandHOBUT
MYR265.73
Each
units
0/1A For Shunt 75mV DC Moving Coil 48mm 48mm 43mm Class 1.5 -25°C +40°C - 0/1A For Shunt 75mV - D48MC
RS Stock No. 315-9515
Mfr. Part No.PD721MCS50A/1-001
BrandHOBUT
MYR347.43
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. 815-8312
Mfr. Part No.APM-AMP-ANN
BrandTrumeter
MYR335.16
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 815-8318
Mfr. Part No.APM-AMP-APO
BrandTrumeter
MYR521.59
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 914-5414
Mfr. Part No.D72MC75MV/0-30A
BrandHOBUT
MYR300.58
Each
units
0/30A For Shunt 75mV DC Moving Coil 72mm 72mm 38.5mm Class 1.5 -25°C +40°C BS89, CE, DIN 43700, DIN 43802, IEC 51, UL 94V0, UL 94V1 0/30A For Shunt 75mV 0A D72MC
RS Stock No. 374-4595
Mfr. Part No.ACA-20PC-2-AC1-RL-C
MYR447.41
Each
units
- AC - 21.3mm 33.9mm - - 0°C +60°C - - - -
RS Stock No. 287-2116
Mfr. Part No.PD72MIS5A2/2-001 0/150/300A
BrandHOBUT
MYR183.32
Each
units
0/150/300A For 150/5A CT AC Moving Iron 72mm 72mm 30.5mm Class 1.5 -25°C +40°C - 0/150/300A For 150/5A CT - -
RS Stock No. 196-8660
Mfr. Part No.IS 11027
MYR464.41
Each
units
20mA DC Moving Coil 55.5mm 121mm 30.2mm ±1.5 % -25°C +55°C - - - -
RS Stock No. 823-3605
Mfr. Part No.DCA5-20PC-1-DC1-RL-C
MYR287.19
Each
units
- DC - 32.51mm 46.38mm 4.75mm ±0.15 % 0°C +60°C - - - -
RS Stock No. 315-9486
Mfr. Part No.PD721MCS1A/2-003
BrandHOBUT
MYR321.34
Each
units
0/1A Direct Connected DC DC Moving Coil 72mm 72mm 30.5mm Class 1.5 -25°C 40°C - 0/1A Direct Connected DC - PD72MC