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AC/DC Current Probe Model MR521 (Discontinued. Replaced by Model 526 Cat. #1200.83)

The MR521 is a general purpose 1500A AC or DC current probe designed for use with DMMs, loggers, oscilloscopes and other instruments that have voltage inputs. The MR521 has dual selectable range probes. The MR521 has an integral 5 ft (1.5m) lead terminated by shrouded banana plugs. The jaw design on these probes make then well-suited for measuring current in both cable and bus bar type conductors.

Discontinued - Replaced by Model MR526 Cat. #1200.83

NOTE: Our complete catalog is not available for direct online purchase, refer to the Status Column for purchasing options. Items that do not have an Add to Cart button must be purchased from an Authorized Distributor.
Model Cat. # Description List Price Quantity/Status Distributor Stock Check
MR521 1200.69 AC/DC Current Probe Model MR521 (Discontinued. Replaced by Model MR526 Cat. #1200.83) $0.00 Discontinued
ModelMR521
Cat. #1200.69
DescriptionAC/DC Current Probe Model MR521 (Discontinued. Replaced by Model MR526 Cat. #1200.83)
List Price$0.00
Discontinued
Print
Maximum Conductor Size 1.6" (42mm) or 2 bus bar 1.96 x 0.19” (50 x 5mm)
Current Range 0.2 to 100AAC, 150ADC & 0.5 to 1000AAC, 1500ADC
Measurement Range 0.2 to 100AAC, 150ADC & 0.5 to 1000AAC, 1500ADC
Output 5 ft (1.5m) lead with 4mm safety banana plug
Transformation Ratio N/A
Output Signal 10 mV/A  (1V @ 100A) & 1mV/A   (1V @ 1000A)
Accuracy 50/60Hz 1.5% R ± 0.5A @ 100A & 2.5% R ± 0.5A @ 800A
Frequency Range 40Hz to 10KHz
Phase Shift At 50Hz 3° @ 100A & 2.5° @ 800A
Open Secondary Voltage N/A
Load Impedance 1MΩ
Battery and Battery Life 9V (6LR61), 100H typical
Overload 1000A continuous up to 1kHz
Dimensions  (H x W x D) 9.31 x 3.82 x 1.73” (236 x 97 x 44mm)
Weight 15 oz (480g)
Operating Temperature 14° to +131°F  (-10° to +55°C)
Storage Temperature -40° to +176°F  (-40° to +80°C)
Operating Humidity 90% RH
Pollution degree 2     
Ingress Protection (IP) IP40
EMC EN 61326-1
Safety Compliance EN/IEC 61010-1 600V CAT III,
EN/IEC 61010-032

User Manuals

Datasheets

Brochures

Comparison Charts

Application Notes

Technical Bulletins

Model Cat. # Description List Price Quantity/Status Distributor 
Stock Check
1017.45 Adapter - 4mm non-insulated for safety leads $20.50
2118.09 Case – General Carrying Case — Dimensions: (13 x 9.5 x 3) in $73.50
2118.46 Adapter - Banana (Female) - BNC (Male) (XM-BB) for use with AmpFlex Sensors, Models K100/K110 and SLII Data Loggers
(600V CAT III)
$46.25
5100.00 Clip - Safety Alligator - Red (1000V CAT IV, 15A, UL V2) $12.00
5100.04 Clip - Safety Alligator - Blue (1000V CAT IV, 15A, UL V2) $12.00
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. #1017.45
DescriptionAdapter - 4mm non-insulated for safety leads
List Price$20.50
Model
Cat. #2118.09
DescriptionCase – General Carrying Case — Dimensions: (13 x 9.5 x 3) in
List Price$73.50
Model
Cat. #2118.46
DescriptionAdapter - Banana (Female) - BNC (Male) (XM-BB) for use with AmpFlex Sensors, Models K100/K110 and SLII Data Loggers
(600V CAT III)
List Price$46.25
Model
Cat. #5100.00
DescriptionClip - Safety Alligator - Red (1000V CAT IV, 15A, UL V2)
List Price$12.00
Model
Cat. #5100.04
DescriptionClip - Safety Alligator - Blue (1000V CAT IV, 15A, UL V2)
List Price$12.00
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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