Specifications (PDF)
The JM840A is a high performance AC Current Probe with excellent transformation and low phase shift. The high quality magnetic core and uniform windings provide for accurate measurements up to 500AAC/1000AAC/1800AAC. The “squared” jaw permits multiple conductor or bus bar positionings. Provide excellent TRMS capabilities and reliable signal reproduction.
Features
● Nominal range: 1 to 500AAC, 1 to 1000AAC, 1 to 1500AAC (continuous cycle for the full temperature range)
● Transformation ratio: 500:1, 1000:1, 1500:1
● Output: 2mA/A, 1mAAC/AAC, 0.66mAAC/AAC
● Designed for use on DMMs, power and harmonic meters, recorders or instruments with AC current ranges
Applications
● Electrical utility
● HVAC
● Industrial maintenance
● Laboratory
● Plant maintenance

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