Product OverviewThe Hioki CM3281 is a high-performance, compact AC clamp meter designed for professional electrical maintenance and industrial diagnostics. It stands out for its slim, "card-style" form factor combined with a surprisingly wide measurement capability, allowing it to handle currents up to 2000 A AC. By utilizing an average rectification method, it provides a stable and accurate measurement of the fundamental wave component, making it an excellent, cost-effective choice for general electrical work, distribution panel inspections, and maintenance of electrical machinery where waveform distortion is minimal.Key FeaturesHigh-Current Capacity: Measures AC current up to 2000 A, making it suitable for high-power distribution systems and heavy industrial machinery.Compact & Slim Design: Features a thin, 16mm-thick body and a 46mm diameter jaw, enabling users to easily clamp around conductors in densely wired electrical panels where access is restricted.Multi-Functionality: Beyond current measurement, it offers voltage (AC/DC), resistance, and continuity testing, effectively replacing the need for a separate digital multimeter in many field scenarios.Flexible Sensor Compatibility: Can be paired with the optional CT6280 Flexible Current Sensor to measure currents up to 4200 A AC or to access extremely confined wiring configurations where a rigid jaw won't fit.Rugged Field Durability: Built to withstand harsh environments with a wide operating temperature range (-25°C to 65°C) and drop-proof construction (tested for 1-meter falls onto concrete).Power Efficiency: Engineered for long-term field use, with a single CR2032 battery providing up to 120 hours of continuous operation.Technical SpecificationsFeatureSpecificationBrandHiokiModelCM3281AC Current42.00 A to 2000 A (3 ranges, Average rectified)AC Voltage4.200 V to 600 VDC Voltage420.0 mV to 600 VResistance420.0 Ω to 42.00 MΩCore Jaw Diameterφ 46 mm (1.81 in)Safety RatingCAT IV 300 V / CAT III 600 VPower Source1 x CR2032 Lithium batteryDimensions57 x 198 x 16 mmWeightApprox. 103gSEO KeywordsHioki CM3281, AC Clamp Meter, 2000A Clamp Meter, Industrial Clamp Meter, Electrical Diagnostic Tool, Average Rectified Clamp, Slim Clamp Meter, Hioki CM3281 Specs, Pocket Clamp Meter, Electrical Maintenance Equipment.
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