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 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 815-8315
製造零件編號APM-AMP-APN
BrandTrumeter
HK$663.36
單位
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS庫存編號 186-2511
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 287-2150
製造零件編號PD72MIS5A2/2-001 0/400/800A
BrandHOBUT
HK$321.39
單位
0/400/800A For 400/5A CT AC Moving Iron 72mm 72mm 30.5mm Class 1.5 -25°C +40°C - 0/400/800A For 400/5A CT - -
RS庫存編號 186-2536
BrandRS PRO
HK$239.62
單位
100 (Input)µA DC Moving Coil 57mm 44mm 45.7mm ±1.5 % 0°C +60°C - - - -
RS庫存編號 177-0259
製造零件編號3NJ6900-4HJ21
BrandSiemens
HK$468.66
單位
400A AC Moving Iron - - - - - - CE Certified 5 → 400A 5A 3NJ6900
RS庫存編號 186-2483
BrandRS PRO
HK$242.79
單位
- DC Moving Coil 48mm 48mm 54 (<30 A) mm, 72 (30 → 60 A) mm 1 % -10°C +65°C - - - -
全新
RS庫存編號 221-0193
製造零件編號192B3324
BrandSocomec
HK$481.72
單位
125A AC - 72 72 - - - - - - - 192B
RS庫存編號 186-2464
BrandRS PRO
HK$180.51
單位
20 (Input)A AC Moving Iron 96mm 96mm 54 (<30 A)mm 1 % -10°C +65°C - 0 → 20 (Input)A 0 (Input)A -
RS庫存編號 711-6036
製造零件編號DIGEM48X24AK5-A1125-D005-RS
HK$2,074.60
單位
- DC - 22.2mm 45mm 81mm - 0°C +50°C - - - -
RS庫存編號 196-8604
製造零件編號IS 11022
HK$726.48
單位
1mA DC Moving Coil 55.5mm 121mm 30.2mm ±1.5 % -25°C +55°C - - - -
全新
RS庫存編號 221-0144
製造零件編號192A1301
BrandSocomec
HK$598.10
單位
10A AC - 72 72 - - - - - - - 192A
RS庫存編號 810-3315
製造零件編號DCA-20PC-6-DC4-RL-C
HK$620.86
單位
- DC - 21.29mm 33.93mm 26.4mm ±0.15 % 0°C +60°C - - - -
RS庫存編號 186-2428
BrandRS PRO
HK$199.19
單位
80 (Input)A AC Moving Iron 48mm 48mm 54 (<30 A) mm, 72 (30 → 60 A) mm 1 % -10°C +65°C - 0 → 80 (Input)A 0 (Input)A -
全新
RS庫存編號 221-0216
製造零件編號192D3307
BrandSocomec
HK$606.26
單位
150A AC - 72 72 - - - - - - - 192D
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 186-2508
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 312-814
製造零件編號D72MIS25A/1-001
BrandHOBUT
HK$188.49
單位
0/25A Direct Connected AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - 0/25A Direct Connected - D72SD
RS庫存編號 177-0241
製造零件編號3NJ6900-4HE21
BrandSiemens
HK$468.66
單位
150A AC Moving Iron - - - - - - CE Certified 5 → 150A 5A 3NJ6900
全新
RS庫存編號 221-0157
製造零件編號192A3304
BrandSocomec
HK$481.72
單位
40A AC - 72 72 - - - - - - - 192A