Extech 380976-K True RMS Power Clamp Meter Kit

Fits single- and three-phase AC power checks that need one True RMS clamp for kW / kVA / kVAR, horsepower, power factor, phase angle, 1000 A, 600 V, Type K temperature, capacitance, and µA flame-rod current — kit ships with CAT IV test-lead set, Type K probe, case, and 9 V battery.

Key advantages

• AC current — 1000 A True RMS; resolution 10 mA; basic accuracy ±2%; jaw 1.6 in (40 mm) opening.
• Power channels — True power 600 kW / 10 W resolution; ±5%; apparent 600 kVA / 100 VA; ±2%; reactive 600 kVAR / 10 VAR; ±5%; HP 800 HP / 0.01 HP; ±5%.
• Phase / PF — Phase angle −60 to +60° / 0.1°; ±6° with lead/lag indicator; lead/lag indication on the dual LCD.
• Extra channels — Voltage AC/DC 600 V auto-detect; ±1%; simultaneous frequency display; frequency 40 Hz to 1 kHz; ±0.5%; Type K −50 to 900 °C (−58 to 1000 °F); capacitance to 7000 µF; µA 1000 µA AC+DC with 10 nA resolution (flame rod).
• Kit / safety — CAT III 600 V; test-lead kit + Type K probe + case + 9 V; 9 × 3 × 1.6 in (228 × 76 × 39 mm); 16.4 oz (465 g).

Typical applications

• Single- and three-phase AC power evaluation on motors, feeders, and generators.
• Motor/generator install and repair checks of kW, PF, and phase angle with lead/lag.
• HVAC flame-rod µA tests (AC+DC µA to 1000 µA / 10 nA resolution).
• Field temperature and capacitance spots alongside clamp current with the included Type K probe.

Selection guide

• Current / jaw — Confirm load ≤1000 A True RMS and conductor fits 1.6 in (40 mm) opening.
• Power need — Lock whether you need kW only or also kVA/kVAR/HP/PF/phase angle before RFQ.
• Voltage / CAT — AC/DC to 600 V; CAT III 600 V — match CAT rating to the measurement location.
• Kit vs meter-only — This SKU is 380976-K (kit with CAT IV lead set + Type K + case); meter-only sibling is 380976.
• Calibration — Base 380976-K vs 380976-K-NIST when NIST-traceable calibration is required.

Common mistakes

• Ordering meter-only 380976 when the job needs the CAT IV lead kit and Type K probe — specify 380976-K for the kit.
• Expecting DC power clamp or CAT IV clamp jaw duty — listed safety is CAT III 600 V; leads in the kit are CAT IV style accessories.
• Using it as a dedicated insulation megger — high resistance to 100 MΩ is not a 1 kV insulation test set.
• Ignoring phase-angle accuracy (±6°) when the duty needs precision PF/phase metering beyond handheld clamp class.

When to RFQ / what to tell us

1. 1φ vs 3φ duty, max expected amps/kW, and whether PF/phase angle/HP are required.
2. Confirm kit (380976-K) vs meter-only (380976), and NIST (380976-K-NIST) yes/no.
3. Quantity, ship-to, and any need for AC line splitter (480172) or spare Type K probes.

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Specs

FAQ

Q: What does the 380976-K kit include? A: True RMS power clamp, CAT IV-style test-lead kit (extensions, probes, jaw clips, alligator clips), general-purpose Type K probe, carrying case, and 9 V battery per OEM kit datasheet.

Q: What power quantities are measured? A: True power to 600 kW, apparent to 600 kVA, reactive to 600 kVAR, horsepower to 800 HP, plus phase angle −60…+60° with lead/lag — alongside 1000 A TRMS and 600 V.

Q: What should I send for a quote? A: 1φ/3φ, amp/kW band, kit vs meter-only, NIST need, quantity, ship-to. Compatible with systems using Extech 380976-K — we do not claim authorized-dealer status.

Links

• Test & measurement instruments · Test & measurement buying guide
• Request a Quote · Get selection help