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Current Clamp Adaptors / Current Clamps

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I400 I400 Best Seller

(3 Reviews)

Fluke I400 Current Clamp Adaptor
Catalog: 2277225
  • Type (Current Clamp Adaptors: CT
  • Maximum Current AC: 400 A
  • Maximum Conductor Size: 1.25 IN
  • Warranty: 1 YEARS
  • Warranty Details: N/A
  • Comments: N/A

List Price: $199.99

Your Price: $170.11

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I40S-EL3X/3PK I40S-EL3X/3PK

(1 Review)

Fluke I40S-EL3X/3PK Clamp-on Current Transformers, 3pk
Catalog: 4637409
  • Type (Current Clamp Adaptors: CT
  • Maximum Current AC: 40 A
  • Maximum Conductor Size: 0.59 IN
  • HTS/Schedule B Number: 8536.69.8000
  • ECCN Number: EAR99
  • Country of Origin: Romania

Your Price: $1,094.99

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I410 I410 Best Seller

(6 Reviews)

Fluke I410 AC/DC Current Clamp Adaptor
Catalog: 617727
  • Type (Current Clamp Adaptors: CT
  • Maximum Current AC: 400 A
  • Maximum Current DC: 400 A
  • Maximum Conductor Size: 1.18 IN
  • Warranty: 1 YEARS
  • Product Weight: 1.47 LBS

List Price: $329.99

Your Price: $280.69

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A3001 FC A3001 FC Best Seller

(2 Reviews)

Fluke A3001 FC FC Wireless iFlex AC Current Module
Catalog: 4459439
  • Type (Current Clamp Adaptors: CT
  • Maximum Current AC: 2500 A
  • Maximum Conductor Size: 2.51 IN
  • Warranty: 1 YEARS
  • IP Rating: IP42
  • Product Weight: 0.50 LBS

List Price: $327.59

Your Price: $278.65

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193-24-BK 193-24-BK

(3 Reviews)

AEMC 193-24-BK - AmpFlex Sensor 24"
Catalog: 2140.34
  • Type (Current Clamp Adaptors: Flexible/Rogowski
  • Maximum Current AC: 12000 A
  • Maximum Conductor Size: 7.64 IN
  • Warranty: 12 MONTHS (1 YEARSWhat's This?)
  • Interfaces I/O: N/A
  • Storage: N/A

List Price: $320.00

Your Price: $304.00

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I17XX-FLEX3000/3PK I17XX-FLEX3000/3PK

(2 Reviews)

Fluke i17XX-FLEX3000/3pk 3000A 24 inch, 3 pack iFlex Current Clamp
Catalog: 4637355
  • Type (Current Clamp Adaptors: Flexible/Rogowski
  • Maximum Current AC: 3000 A
  • Warranty: 1 YEARS
  • Product Weight: 175 GRAMS (0.386 LBSWhat's This?)
  • Product Height: 3.00 IN
  • Product Length: 10.60 IN

List Price: $782.99

Your Price: $666.01

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I17XX-FLEX6000/3PK I17XX-FLEX6000/3PK

0 reviews

Fluke i17XX-FLEX6000/3pk 6000A 36 inch, 3 pack iFlex Current Clamp
Catalog: 4637370
  • Type (Current Clamp Adaptors: Flexible/Rogowski
  • Maximum Current AC: 6000 A
  • Warranty: 1 YEARS
  • IP Rating: IP50
  • Product Weight: 230 GRAMS (0.5071 LBSWhat's This?)
  • Data Logging: No

List Price: $941.99

Your Price: $801.26

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I1010 I1010

(2 Reviews)

Fluke I1010 Current Clamp Adaptor
Catalog: 617735
  • Type (Current Clamp Adaptors: CT
  • Maximum Current AC: 600 A
  • Maximum Current DC: 1000 A
  • Maximum Conductor Size: 1.18 IN
  • Warranty: 1 YEARS
  • Storage: N/A

List Price: $534.99

Your Price: $455.06

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I2500-18 I2500-18

0 reviews

Fluke I2500-18 Flexible Current Probe
Catalog: 3676405
  • Type (Current Clamp Adaptors: Flexible/Rogowski
  • Maximum Current AC: 2500 A
  • Maximum Conductor Size: 18 IN
  • Product Height: 2.25 IN
  • Product Length: 11.75 IN
  • Product Width: 8.00 IN

List Price: $229.99

Your Price: $195.63

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I17XX-FLEX6000 I17XX-FLEX6000

0 reviews

Fluke i17XX-FLEX6000 6000A 36 inch iFlex Current Clamp
Catalog: 4637362
  • Type (Current Clamp Adaptors: Flexible/Rogowski
  • Maximum Current AC: 6000 A
  • Warranty: 1 YEARS
  • IP Rating: IP50
  • Product Weight: 230 GRAMS (0.5071 LBSWhat's This?)
  • Data Logging: No

List Price: $317.99

Your Price: $270.48

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193-36-BK 193-36-BK

0 reviews

AEMC 193-36-BK - AmpFlex Sensor 36"
Catalog: 2140.35
  • Type (Current Clamp Adaptors: Flexible/Rogowski
  • Maximum Current AC: 12000 A
  • Maximum Conductor Size: 11.46 IN
  • Warranty: 12 MONTHS (1 YEARSWhat's This?)
  • Product Weight: 5.22 LBS
  • Shipping Weight: 6 LBS

List Price: $370.00

Your Price: $351.50

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MA193-10-BK MA193-10-BK

(1 Review)

AEMC MA193-10-BK - Current Clamp Adaptor
Catalog: 2140.48
  • Type (Current Clamp Adaptors: Flexible/Rogowski
  • Maximum Current AC: 3000 A
  • Warranty: 12 MONTHS (1 YEARSWhat's This?)
  • Product Weight: 2 LBS
  • Shipping Weight: 6.00 LBS
  • Data Logging: No

List Price: $275.00

Your Price: $261.25

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Recommended for you

Current Clamp Adaptors / Current Clamps

Current Clamp Adaptors, or simply Current Clamps, convert measured current signals into a voltage signal suitable for multimeters, oscilloscopes, data recorders and other test instruments

Considerations when buying a clamp adaptor
  • Do not compromise on safety
    Make sure the clamp meter has the correct rating. Check that the design will allow you to use the meter easily while wearing Personal Protective Equipment (PPE). Checkout the convenience of the flexible current clamps utilizing the Rogowski Principle and exciting new wireless models.
     
  • Make sure the clamp meter works where you do
    Check the specifications for the amperage and voltage range you will be working. Also consider the ambient temperature range if you will be working in a hot environment. Is it rated only for indoor use only?
     
  • Consider special features such as:
    • Flexible current clamp adaptors based on the Rogowski Principle
    • Current clamps that draw power from the conductor versus ones requiring batteries
How does a clamp adaptor work?

Clamp meters and adaptors measure this field using one of two technologies. For DC currents, "Hall Effect" is used, while for AC currents "Inductive" technology is used. Hall effect and induction are noncontact technologies based on the principle that for a given current flow, a proportional magnetic field is produced around the current-carrying conductor. Both technologies measure this magnetic field, but with different sensing methods

Hall Effect Technology
The Hall effect sensor consists of three basic components: the core, the Hall effect device, and signal conditioning circuitry. The current conductor passes through a magnetically permeable core that concentrates the conductor's magnetic field. The Hall effect device is carefully mounted in a small slit in the core, at a right angle to the concentrated magnetic field. A constant current in one plane excites it. When the energized Hall device is exposed to a magnetic field from the core, it produces a potential difference (voltage) that can be measured and amplified.

Inductive Technology
The ability of clamp meters to measure large ac currents is based on simple transformer action. AC current constantly changes potential from positive to negative and back again, generally at the rate of 50 Hz or 60 Hz. The expanding and collapsing magnetic field induces current in the windings. This is the principle that governs all transformers. When you clamp the instrument’s “jaws” around a conductor carrying ac current, that current is coupled through the jaws, similar to the iron core of a power transformer, and into a secondary winding which is connected across the shunt of the meter’s input. A much smaller current is delivered to the meter’s input due to the ratio of the number of secondary windings vs. the number of primary windings wrapped around the core.

Usually, the primary is represented by the one conductor around which the jaws are clamped. If the secondary has 1000 windings, then the secondary current is 1/1000 the current flowing in the primary, or in this case the conductor being measured. Thus, 1 amp of current in the conductor being measured would produce 0.001 amps or 1 milliamp of current at the input of the meter. With this technique, much larger currents can be easily measured by increasing the number of turns in the secondary.

What is the Rogowski Principle used by Flexible Current Clamps?
The flexible and lightweight measuring heads utilizing the Rogowski Principle allow quick and easy installation in hard to reach areas. The Rogowski current clamp is a toroidal coil. The magnetic field produced by the conductor induces a voltage proportional to the rate of change or derivative of the current (oops some calculus). The voltage is then integrated in a circuit (more calculus) to produce a linear voltage suitable for multimeters, oscilloscopes, and recorders.

See a Rogowski Flexible Clamp in action
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