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 177-0236
製造零件編號3NJ6900-4HD12
BrandSiemens
HK$1,364.35
單位
100A AC - - - - - - - CE Certified 1 → 100A 1A 3NJ6900
RS庫存編號 177-0269
製造零件編號3NJ6900-4HL22
BrandSiemens
HK$1,364.35
單位
600A AC - - - - - - - CE Certified 5 → 600A 5A 3NJ6900
RS庫存編號 177-0238
製造零件編號3NJ6900-4HD22
BrandSiemens
HK$1,364.35
單位
100A AC - - - - - - - CE Certified 5 → 100A 5A 3NJ6900
RS庫存編號 177-0243
製造零件編號3NJ6900-4HF11
BrandSiemens
HK$461.95
單位
200A AC Moving Iron - - - - - - CE Certified 1 → 200A 1A 3NJ6900
RS庫存編號 177-0232
製造零件編號3NJ6900-4HB21
BrandSiemens
HK$461.95
單位
50A AC Moving Iron - - - - - - CE Certified 5 → 50A 5A 3NJ6900
RS庫存編號 177-0262
製造零件編號3NJ6900-4HK11
BrandSiemens
HK$461.95
單位
500A AC Moving Iron - - - - - - CE Certified 1 → 500A 1A 3NJ6900
RS庫存編號 177-0254
製造零件編號3NJ6900-4HH21
BrandSiemens
HK$461.95
單位
300A AC Moving Iron - - - - - - CE Certified 5 → 300A 5A 3NJ6900
RS庫存編號 177-0235
製造零件編號3NJ6900-4HD11
BrandSiemens
HK$461.95
單位
100A AC Moving Iron - - - - - - CE Certified 1 → 100A 1A 3NJ6900
RS庫存編號 177-0268
製造零件編號3NJ6900-4HL21
BrandSiemens
HK$461.95
單位
600A AC Moving Iron - - - - - - CE Certified 5 → 600A 5A 3NJ6900
RS庫存編號 177-0252
製造零件編號3NJ6900-4HH11
BrandSiemens
HK$461.95
單位
300A AC Moving Iron - - - - - - CE Certified 1 → 300A 1A 3NJ6900
RS庫存編號 177-0237
製造零件編號3NJ6900-4HD21
BrandSiemens
HK$461.95
單位
100A AC Moving Iron 46mm 46mm - - - - CE Certified 5 → 100A 5A 3NJ6900
RS庫存編號 177-0242
製造零件編號3NJ6900-4HE22
BrandSiemens
HK$1,364.35
單位
150A AC - - - - - - - CE Certified 5 → 150A 5A 3NJ6900
RS庫存編號 177-0246
製造零件編號3NJ6900-4HF22
BrandSiemens
HK$1,364.35
單位
200A AC - - - - - - - CE Certified 5 → 200A 5A 3NJ6900
RS庫存編號 177-0251
製造零件編號3NJ6900-4HG22
BrandSiemens
HK$1,364.35
單位
250A AC - - - - - - - CE Certified 5 → 250A 5A 3NJ6900
RS庫存編號 177-0244
製造零件編號3NJ6900-4HF12
BrandSiemens
HK$1,364.35
單位
200A AC - - - - - - - CE Certified 1 → 200A 1A 3NJ6900
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 177-0258
製造零件編號3NJ6900-4HJ12
BrandSiemens
HK$1,364.35
單位
400A AC - - - - - - - CE Certified 1 → 400A 1A 3NJ6900
RS庫存編號 177-0230
製造零件編號3NJ6900-4HB11
BrandSiemens
HK$461.95
單位
50A AC Moving Iron - - - - - - CE Certified 1 → 50A 1A 3NJ6900
RS庫存編號 177-0247
製造零件編號3NJ6900-4HG11
BrandSiemens
HK$461.95
單位
250A AC Moving Iron - - - - - - CE Certified 1 → 250A 1A 3NJ6900
RS庫存編號 177-0239
製造零件編號3NJ6900-4HE11
BrandSiemens
HK$461.95
單位
150A AC Moving Iron - - - - - - CE Certified 1 → 150A 1A 3NJ6900