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. 815-8321
Mfr. Part No.APM-AMP-ANO
BrandTrumeter
TWD3,979.00
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 312-808
Mfr. Part No.D72MIS5A/5-001
BrandHOBUT
TWD784.00
Each
units
FSD 0/5A Dual Scale 0/10A & 0/3A AC Moving Iron 72mm 72mm 38.5mm Class 1.5 -25°C +40°C - FSD 0/5A Dual Scale 0/10A & 0/3A - D72SD
RS Stock No. 183-212
Mfr. Part No.D72MIS5A6/2-001 NO DIAL
BrandHOBUT
TWD729.00
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. 815-8312
Mfr. Part No.APM-AMP-ANN
BrandTrumeter
TWD2,665.00
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 905-5670
Mfr. Part No.PAXLIT00
BrandRed Lion
TWD6,818.00
Each
units
- AC - 44.5mm 91.4mm 104.1mm ±0.5 % 0°C +60°C Canadian Requirements Under the Component, Canadian Safety Standards, CSA C22.2 No. 14-M95, CSA C22.2 No. 61010-1, EN 61010-1, File # E137808, File # E179259, IEC 529, IEC 61010-1, IECEE CB Scheme Test Report # 04ME11209-20041018, IP20 (Rear of Unit), IP6 - - PAXLI
RS Stock No. 815-8315
Mfr. Part No.APM-AMP-APN
BrandTrumeter
TWD2,430.00
Each
units
- AC, DC - 68mm 68mm 53mm 1 % -10°C +60°C - 0 → 5A - APM-AMP
RS Stock No. 711-6036
Mfr. Part No.DIGEM48X24AK5-A1125-D005-RS
TWD7,028.00
Each
units
- DC - 22.2mm 45mm 81mm - 0°C +50°C - - - -
RS Stock No. 798-3804
Mfr. Part No.DMK71R1
BrandLovato
TWD3,813.00
Each
units
- AC - - - 63.1mm ±0.5 % -20°C +60°C - - - -
RS Stock No. 392-8620
Mfr. Part No.9601500000B
TWD1,196.00
Each
units
15A DC Moving Magnet 92mm 92mm 53mm Class 1.5 - +23°C - 15A - -
RS Stock No. 905-3457
Mfr. Part No.DMK01
BrandLovato
TWD3,008.00
Each
units
- AC - 45mm 92mm 105mm - -20°C +60°C CSA C22.2 n° 14, CULus Certification, EAC Certification, IEC/EN 61000-6-2, IEC/EN 61000-6-3, IEC/EN 61010-1, UL508 0.05 → 5.75A - DMK
RS Stock No. 810-3312
Mfr. Part No.DCA5-20PC-2-DC4-RL-C
TWD1,777.00
Each
units
- DC - 21.29mm 33.93mm 25.4mm ±0.15 % 0°C +60°C - - - -
RS Stock No. 388-5545
Mfr. Part No.CUB4I020
BrandRed Lion
TWD5,626.00
Each
units
- DC - 33mm 68mm 49.8mm ±0.1 % 0°C +60°C - - - -
RS Stock No. 886-2036
Mfr. Part No.PQ94-I18L2N1CAW0ST
TWD817.00
Each
units
10mA 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 10mA - Sigma
RS Stock No. 177-0263
Mfr. Part No.3NJ6900-4HK12
BrandSiemens
TWD4,552.00
Each
units
500A AC - - - - - - - CE Certified 1 → 500A 1A 3NJ6900
RS Stock No. 188-3473
BrandRS PRO
TWD5,168.00
Each
units
- - - - - 66mm - -20°C +60°C - 4 → 20mA - -
RS Stock No. 177-0264
Mfr. Part No.3NJ6900-4HK21
BrandSiemens
TWD1,723.00
Each
units
500A AC Moving Iron - - - - - - CE Certified 5 → 100A 5A 3NJ6900
RS Stock No. 312-886
Mfr. Part No.D96MIS25A/1-001
BrandHOBUT
TWD933.00
Each
units
0/25A Direct Connected AC Moving Iron 96mm 96mm 38.5mm Class 1.5 -25°C +40°C - 0/25A Direct Connected - D96SD
RS Stock No. 392-8591
Mfr. Part No.9602500000B
TWD1,196.00
Each
units
25A DC Moving Magnet 92mm 92mm 53mm Class 1.5 - +23°C - 25A - -
RS Stock No. 186-2504
BrandRS PRO
TWD881.00
Each
units
- 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 Stock No. 823-3586
Mfr. Part No.ACA-20RM-4-AC4-RL-C
TWD2,893.00
Each
units
- AC - 35.56mm 53.34mm 6.35mm ±0.4 % 0°C +60°C - - - -