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. 886-2008
Mfr. Part No.PQ74-I18L2N1CAW0ST
TWD817.00
Each
units
10mA DC Moving Coil 68mm 68mm 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 10mA - Sigma
RS Stock No. 886-2039
Mfr. Part No.PQ94-I20L2N1CAW0ST
TWD801.00
Each
units
20mA 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 20mA - Sigma
RS Stock No. 195-9130
Mfr. Part No.CUB4CL10
BrandRed Lion
TWD8,949.00
Each
units
- DC - 33mm 68mm 49.8mm - 0°C +60°C - 4 → 20 mA, 10 → 50 mA - CUB4CL
RS Stock No. 186-2478
BrandRS PRO
TWD881.00
Each
units
- DC Moving Coil 48mm 48mm 54 (<30 A) mm, 72 (30 → 60 A) mm 1 % -10°C +65°C - - - -
RS Stock No. 901-0359
BrandRS PRO
TWD438.00
Each
units
30A AC Moving Iron 68mm 68mm 36.5mm ±1.5 % -25°C +50°C CE, RoHS Compliant, TUV Certified, UL E327849 0 → 60A 0A RS PRO
RS Stock No. 810-3302
Mfr. Part No.DCA-20PC-5-DC4-RL-C
TWD1,889.00
Each
units
- DC - 21.29mm 33.93mm 26.4mm ±0.15 % 0°C +60°C - - - -
RS Stock No. 244-862
Mfr. Part No.F3PAM1801-10A
BrandHOBUT
TWD137.00
Each
units
10A DC Moving Iron - - 15mm ±8 % -20°C +40°C - 0/10A - F3PAM
RS Stock No. 123-6791
Mfr. Part No.EQ94-I1112N1CAW0ST
TWD420.00
Each
units
5A AC - 96mm 96mm - - - - - 0 → 5A 0A -
RS Stock No. 186-2417
BrandRS PRO
TWD582.00
Each
units
Scale)A, 3 (Input AC Moving Iron 48mm 48mm 54 (<30 A)mm 1 % -10°C +65°C - 0 → 3 (Input, Scale)A 0 (Input, Scale)A -
RS Stock No. 313-463
Mfr. Part No.D96MIS60A/1-001
BrandHOBUT
TWD1,015.00
Each
units
0/60A Direct Connected AC Moving Iron 96mm 96mm 38.5mm Class 1.5 -25°C +40°C - 0/60A Direct Connected - D96SD
RS Stock No. 183-010
Mfr. Part No.D72SD5A/2-001 NO DIAL
BrandHOBUT
TWD742.00
Each
units
5A AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/5A - D72SD
RS Stock No. 815-8318
Mfr. Part No.APM-AMP-APO
BrandTrumeter
TWD3,370.00
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 195-9131
Mfr. Part No.CUB4CL20
BrandRed Lion
TWD8,949.00
Each
units
- DC - 33mm 68mm 49.8mm - 0°C +60°C - 4 → 20 mA, 10 → 50 mA - CUB4CL
RS Stock No. 177-0256
Mfr. Part No.3NJ6900-4HH22
BrandSiemens
TWD5,090.00
Each
units
300A AC - - - - - - - CE Certified 5 → 300A 5A 3NJ6900
RS Stock No. 196-8294
Mfr. Part No.IS 10994
TWD2,516.00
Each
units
1mA DC Moving Coil 20.2mm 42.4mm 31.2mm ±2.5 % -25°C +55°C - - - -
RS Stock No. 201-969
Mfr. Part No.EQB 48 MB: 25/50A SCALA: 0-25/50A
TWD800.00
Each
units
25/50A AC Moving Iron 45mm 45mm 53mm Class 1.5 -25°C +40°C - - - -
RS Stock No. 186-2497
BrandRS PRO
TWD881.00
Each
units
- DC Moving Coil 72mm 72mm 54 (<4 A) mm, 67 (5 → 60 A) mm, 67 (60 → 100 A) mm 1 % -10°C +65°C - - - -
RS Stock No. 244-935
Mfr. Part No.R68M-30A-001
BrandHOBUT
TWD868.00
Each
units
30A DC Moving Magnet 63.5mm 62.5mm 35mm ±8 % -20°C +40°C - 0/30A - R68M
RS Stock No. 810-3306
Mfr. Part No.DCA-20PC-6-DC1-RL-C
TWD1,626.00
Each
units
- DC - 21.29mm 33.93mm 26.4mm ±0.15 % 0°C +60°C - - - -
RS Stock No. 186-2437
BrandRS PRO
TWD582.00
Each
units
5 (Input) A, 200 (Scle) A, 200/5 (CT) A AC Moving Iron 72mm 72mm 54 (<30 A) mm, 62 (30 → 60 A) mm, 66 (100 A) mm 1 % -10°C +65°C - 0 → 200 (Scale) A, 0 → 5 (Input) A, 200/5 (CT) A 0 (Input, Scale)A -