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Amprobe RS-3 PRO analog clamp meter with 46 mm jaw opening

Amprobe

Amprobe RS-3 PRO analog clamp meter 300 A 600 V CAT IV 600 V 46 mm jaw

SKU CH-25GW-PW8ZA

Measures up to 300 A AC and 600 V AC with a 46 mm jaw, CAT IV 600 V safety rating, and analog rotary display

  • TypeElectronic
  • Measures up to 300 A AC with 46 mm jaw
  • Reads up to 600 V AC for mains-level circuits
  • CAT IV 600 V rating for service-entrance safety
  • Analog rotary scale gives instant needle response
  • Includes battery, test leads and carrying case

Amprobe RS-3 PRO analog clamp meter 300 A 600 V

The Amprobe RS-3 PRO is an analog clamp meter built for electrical testing up to 300 A AC and 600 V AC. Its 46 mm jaw opens to 1.8 in, allowing measurement on large conductors without breaking the circuit. The rotary-scale display provides direct readings for current, voltage and resistance up to 1 000 ohms. It carries a CAT IV 600 V safety rating for service-entrance work.

Who this suits and who should look elsewhere

Electricians and technicians needing a rugged analog instrument for high-energy three-phase panels will find the CAT IV rating and wide jaw appropriate. Buyers who require true-RMS accuracy on distorted waveforms, data logging, DC current ranges or a digital readout should choose a different meter. The average-responding AC circuit and lack of DC functions limit use on variable-speed drives or solar arrays.

Deciding specification — CAT IV 600 V safety rating

The CAT IV 600 V rating is the single figure that determines whether this clamp meter can be used at the service entrance or on utility feeders. Lower-rated CAT III meters must not be connected to those points. If your work stays downstream of the main distribution board, a CAT III instrument would also function, but only the CAT IV marking guarantees compliance for upstream measurements.

Highlights

  • Measures up to 300 A AC with 46 mm jaw
  • Reads up to 600 V AC for mains-level circuits
  • CAT IV 600 V rating for service-entrance safety
  • Analog rotary scale gives instant needle response
  • Includes battery, test leads and carrying case

Specifications

BrandAMPROBE
TypeElectronic

Questions about this item

What test leads and battery are included so the clamp meter works immediately?

The package includes test leads and an installed AAA battery for resistance measurement, so you can start testing AC current and voltage right away.

Will the 46 mm jaw fit around the same conductors I currently measure with my older clamp meter?

The 46 mm jaw capacity matches 1.8 inches, accommodating typical residential and light-commercial conductors that older meters also handle.

How do I confirm the analog needle is reading correctly after I connect the leads?

Select the proper AC range, clamp the jaw around a known live conductor, and verify the rotary-scale needle deflects smoothly toward the expected 300 A or 600 V mark.

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