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庫存編號 177-0256
製造零件編號3NJ6900-4HH22
BrandSiemens
HK$1,364.35
單位
300A AC - - - - - - - CE Certified 5 → 300A 5A 3NJ6900
RS庫存編號 186-2451
BrandRS PRO
HK$199.19
單位
50 (Input)A AC Moving Iron 72mm 72mm 54 (<30 A) mm, 62 (30 → 60 A) mm 1 % -10°C +65°C - 0 → 50 (Input)A 0 (Input)A -
RS庫存編號 186-2487
BrandRS PRO
HK$245.86
單位
1 (Input)mA DC Moving Coil 72mm 72mm 54 (<4 A)mm 1 % -10°C +65°C - 0 → 1 (Input)mA 0 (Input)mA -
RS庫存編號 914-5389
製造零件編號D72SD5A/0-400A
BrandHOBUT
HK$241.44
單位
0/400A For 400/5A 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 0/400A For 400/5A CT 0A D72SD
RS庫存編號 388-5488
製造零件編號CUB4I000
BrandRed Lion
HK$1,425.15
單位
- DC - 33mm 68mm 49.8mm ±0.1 % 0°C +60°C - - - -
RS庫存編號 287-2122
製造零件編號PD72MIS5A2/2-001 0/200/400A
BrandHOBUT
HK$321.39
單位
0/200/400A For 200/5A CT AC Moving Iron 72mm 72mm 30.5mm Class 1.5 -25°C +40°C - 0/200/400A For 200/5A CT - -
RS庫存編號 186-2504
BrandRS PRO
HK$242.85
單位
- DC Moving Coil 96mm 96mm 54 (<4 A) mm, 67 (5 → 60 A) mm, 67 (60 → 100 A) mm 1 % -10°C +65°C - - - -
RS庫存編號 798-3788
製造零件編號DMK01R1
BrandLovato
HK$903.38
單位
- AC - 45mm 91mm 105mm ±0.5 % -20°C +60°C - - - -
RS庫存編號 392-9702
製造零件編號9600600025B
HK$325.09
單位
25A DC Moving Magnet 92mm 92mm 53mm Class 1.5 - +23°C - 60mV - -
RS庫存編號 886-2008
製造零件編號PQ74-I18L2N1CAW0ST
HK$223.40
單位
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庫存編號 186-2479
BrandRS PRO
HK$242.85
單位
- DC Moving Coil 48mm 48mm 54 (<30 A) mm, 72 (30 → 60 A) mm 1 % -10°C +65°C - - - -
RS庫存編號 177-0252
製造零件編號3NJ6900-4HH11
BrandSiemens
HK$468.66
單位
300A AC Moving Iron - - - - - - CE Certified 1 → 300A 1A 3NJ6900
RS庫存編號 886-1872
製造零件編號EQ74-I1422N1CAW0ST
HK$126.13
單位
15A AC Moving Iron 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 0 → 15A 0A Sigma
RS庫存編號 186-2537
BrandRS PRO
HK$271.62
單位
10 (Input)A DC Moving Coil 57mm 44mm 45.7mm ±1.5 % 0°C +60°C - 0 → 10 (Input)A 0 (Input)A -
RS庫存編號 186-2431
BrandRS PRO
HK$175.92
單位
- AC Moving Iron 48mm 48mm 54 (<30 A) mm, 72 (30 → 60 A) mm 1 % -10°C +65°C - - - -
RS庫存編號 177-0260
製造零件編號3NJ6900-4HJ22
BrandSiemens
HK$1,364.35
單位
400A AC - - - - - - - CE Certified 5 → 400A 5A 3NJ6900
RS庫存編號 186-2484
BrandRS PRO
HK$240.78
單位
- DC Moving Coil 48mm 48mm 54 (<30 A) mm, 72 (30 → 60 A) mm 1 % -10°C +65°C - - - -
RS庫存編號 186-2413
BrandRS PRO
HK$175.92
單位
Scale)A, 10 (Input AC Moving Iron 48mm 48mm 54 (<30 A)mm 1 % -10°C +65°C - 0 → 10 (Input, Scale)A 0 (Input, Scale)A -
RS庫存編號 202-473
製造零件編號EQB 48 MB: WDL.5/10A SCALA: 0-50/100A
HK$217.49
單位
100A AC Moving Iron 45mm 45mm 53mm Class 1.5 - +23°C - - - -
RS庫存編號 901-0365
BrandRS PRO
HK$135.44
單位
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