Overview
The Amprobe RS-3 clamp meter is a rugged analog multimeter designed for field electrical testing and troubleshooting. Measures AC current up to 300A, voltage to 600 VAC, resistance, and continuity. This CAT IV 600 V safety rated analog clamp is a great tool for tough electrical applications. The analog scale display eliminates dependency on battery power for voltage and amperage readings, making it reliable in remote locations and extreme conditions.
Key Features
- Measures AC current up to 300 A, Voltage up to 600 V AC, Resistance and continuity
- Pointer lock – data hold
- Easy to use rotary scale – Measures volts and amps, no batteries required
- Works in temperatures from 5 F to 122 F
- Operates on 50 and 60 Hz frequency
- CAT IV 600 V safety rated
Technical Specifications
- AC Voltage Ranges: 150 V, 300 V, 600 V AC
- AC Current Ranges: 6 A, 15 A, 40 A, 100 A, 300 A
- Resistance Range: 1000 Ω
- Continuity: Yes
- Jaw Opening/Conductor Diameter: 41mm (1.64″)
- Display Type: Analog scales with clamping needle
- Operating Temperature: 5 °F to 122 °F
- Frequency: 50/60 Hz
- Safety Rating: CAT IV 600 V
- Voltage Accuracy: ± 3 % of full scale
- Input Impedance: 1.5 MΩ
Typical Applications
The RS-3 is ideal for HVAC technicians, electricians, facility maintenance staff, and electrical contractors performing routine circuit diagnostics, motor circuit analysis, load testing, and electrical system troubleshooting. The battery-free operation for AC measurements makes it particularly valuable for remote installations and areas with temperature extremes where digital meters may fail.
Compatibility & Replacements
Compatible With
- Single-phase and three-phase AC circuits (industrial and commercial)
- Standard electrical distribution systems (residential, commercial, industrial)
- HVAC/R equipment and control circuits
- Motor circuits and branch circuits
Replaces / Drop-In Replacement For
The Amprobe RS-3 is part of the legacy RS series. Current equivalent units include the RS-3 PRO (CAT IV 600V rated variant) for applications requiring modern safety certifications. Verify compatibility with your equipment before ordering.
Works With
- Standard test leads and probes
- Clamp-type current measurement (no additional adapters required)
- Industry-standard electrical measurement protocols
