AC Current Probe Model JM861

The Model JM861 is designed for oscilloscopes, waveform displaying instruments and other instruments able to benefit from its frequency response. The Model JM861 encompasses a special circuit and three ranges to maximize frequency response performance. Accurately measures AC current waveforms and has proportional mV output for direct readings on oscilloscopes. Three-position slide switch on the handle selects ranges. Large jaw window enables use on cables and bus bars.
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Model Cat. # Description List Price Quantity/Status Distributor Stock Check
JM861 2110.90 AC Current Probe Model JM861
(30A, 10mV/A; 300A, 1mV/A & 3000A, 0.1mV/A, BNC)
$750.00
ModelJM861
Cat. #2110.90
DescriptionAC Current Probe Model JM861
(30A, 10mV/A; 300A, 1mV/A & 3000A, 0.1mV/A, BNC)
List Price$750.00
Print
Maximum Conductor Size Cable: 2.52" (64mm)
Bus bar: 1.97 x 5.31” (50 x 135mm), 2.52 x 3.94” (64 x 100mm)
Current Range 30AAC; 300AAC; 2400AAC (3000AAC if ambient temperature <95°F / 35C°)
Measurement Range 1 to 30AAC; 1 to 300AAC; 1 to 2400AAC (3000AAC if ambient temperature <95°F / 35C°)
Output Signal 10mVAC / AAC (0.3V @ 30A); 1mVAC / AAC (0.3V @ 300A); 0.1mVAC / AAC (0.3V @ 3000A)
Output Insulated 6.5 ft (2m) coaxial cable with insulated BNC connector rated 600Vrms
Accuracy 50/60Hz 2% ±1mV @ 30A; 2% ±0.5mV @ 300A; 2% ±0.2mV @ 3000A
Frequency Range 10Hz to 50kHz
Phase Shift 5° @ 30A; 1° @ 300A; 1° @ 3000A
Load Impedance 1MΩ, 47pF
Operating Temperature +14° to +122°F  (-10° to +50°C)
Storage Temperature -40° to +176°F  (-40° to +80°C)
Dimensions  (HxWxD) 4.72 x 12.40 x 1.89” (120 x 315 x 48mm)
Weight 2.65 lbs (1200g)
Pollution Degree 2
Rating UL 94 V0 (handles), ABS UL 94 V2 (jaws)
Ingress Protection IP 20
Safety Compliance IEC 1010-2-32, 600V CAT III

User Manuals

Datasheets

Comparison Charts

Model Cat. # Description List Price Quantity/Status Distributor 
Stock Check
2118.09 General Carrying Case
Dimensions: 13 x 9.5 x 3"
$73.50
2119.94 Adapter - BNC (Female) to 4mm Banana (Male) 600V CAT III $23.25
2133.72 Small Classic Tool Bag for field use.
12 Exterior and 14 Interior pockets
Dimensions: 13.0 x 9.8 x 9.5"
$36.00
2133.73 Bag – Extra Large Classic Tool Bag Replacement for Models 3945/3945-B, 6240, 6250, 6471, 6505, 5050, 5060, 5070, 8333, 8335, 8336, 8436, 8510 & PEL105
Dimensions: 18 x 9 x 12"
$53.00
5100.00 Clip - Safety Alligator - Red (1000V CAT IV, 15A, UL V2) $11.50
5100.04 Clip - Safety Alligator - Blue (1000V CAT IV, 15A, UL V2) $11.50
5100.07 Lead - set of 2, 5 ft color-coded (red/black) PVC w/ 4mm ST/ST plugs $25.00
2140.53 Cat.# 2140.53 DISCONTINUED Click on replacement items: Cat #5000.99: Clip - Safety Alligator - Black (1000V CAT IV, 15A, UL V2)).; $0.00 Discontinued
2140.55 Cat.# 2140.55 DISCONTINUED Click on replacement items: Cat #5100.05: Clip - Safety Alligator - White (1000 V CAT IV, 15 A, UL) $0.00 Discontinued
Model
Cat. #2118.09
DescriptionGeneral Carrying Case
Dimensions: 13 x 9.5 x 3"
List Price$73.50
Model
Cat. #2119.94
DescriptionAdapter - BNC (Female) to 4mm Banana (Male) 600V CAT III
List Price$23.25
Model
Cat. #2133.72
DescriptionSmall Classic Tool Bag for field use.
12 Exterior and 14 Interior pockets
Dimensions: 13.0 x 9.8 x 9.5"
List Price$36.00
Model
Cat. #2133.73
DescriptionBag – Extra Large Classic Tool Bag Replacement for Models 3945/3945-B, 6240, 6250, 6471, 6505, 5050, 5060, 5070, 8333, 8335, 8336, 8436, 8510 & PEL105
Dimensions: 18 x 9 x 12"
List Price$53.00
Model
Cat. #5100.00
DescriptionClip - Safety Alligator - Red (1000V CAT IV, 15A, UL V2)
List Price$11.50
Model
Cat. #5100.04
DescriptionClip - Safety Alligator - Blue (1000V CAT IV, 15A, UL V2)
List Price$11.50
Model
Cat. #5100.07
DescriptionLead - set of 2, 5 ft color-coded (red/black) PVC w/ 4mm ST/ST plugs
List Price$25.00
Model
Cat. #2140.53
DescriptionCat.# 2140.53 DISCONTINUED Click on replacement items: Cat #5000.99: Clip - Safety Alligator - Black (1000V CAT IV, 15A, UL V2)).;
List Price$0.00
Discontinued
Model
Cat. #2140.55
DescriptionCat.# 2140.55 DISCONTINUED Click on replacement items: Cat #5100.05: Clip - Safety Alligator - White (1000 V CAT IV, 15 A, UL)
List Price$0.00
Discontinued

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