Extech 380976-K Single Phase/Three Phase 1000A AC Power Clamp Meter Kit

The 380976-K is designed for technicians and engineers who need a versatile instrument capable of monitoring both single-phase and three-phase electrical systems in industrial, commercial or HVAC environments. With a jaw capable of clamping conductors up to approximately 40 mm (1.6″) and a current range up to 1000 A AC, the meter supports true-RMS current and voltage measurements in high-demand applications. It calculates true power (kW), apparent power (kVA), reactive power (kVAR), horsepower (HP), power factor and phase-angle (lead/lag) — enabling deep insight into system performance. The instrument also supports AC/DC voltage up to 600 V, resistance, capacitance, frequency measurements, and even temperature via a Type-K thermocouple. The dual-LCD display (9999-count) shows both primary measurement and auxiliary information like frequency or phase-angle. Supplied as a full kit, it includes test leads, a thermocouple probe, carrying case and battery, so it is ready for field deployment. With its robust measurement capabilities and accessory set, the 380976-K is a strong all-in-one tool for evaluating power systems, diagnosing faults, verifying motor/generator installations and performing energy-audit tasks.

Features

• True-RMS measurement for both current (up to 1000 A AC) and voltage (up to 600 V AC/DC) in single-phase and three-phase systems.

• Full power-analysis capability: measures true power (kW), apparent power (kVA), reactive power (kVAR), and horsepower (HP).

• Phase-angle and power-factor readings with lead/lag indication, providing insight into system health and load balance.

• Dual-LCD display with a 9999-count resolution, showing main measurement plus supplementary data like frequency or secondary value.

• Wide additional measurement functions: resistance, capacitance (up to 7000 µF), temperature (via Type-K probe), frequency (40 Hz-1 kHz) and micro-current (AC+DC µA with 10 nA resolution) for specialized applications like flame-rod tests.

• Large clamp jaw opening (~40 mm) to accommodate thick conductors or cable bundles in high-current systems.

• Auto-detect AC/DC voltage measurement with simultaneous frequency display, plus Min/Max recording and elapsed-time indicator for trend capture.

• Rugged kit format: includes professional test leads (CAT IV-600 V rated), Type-K thermocouple probe, carrying case and 9 V battery for field readiness.

• Safety rating suitable for professional electrical environments (typically CAT III 600 V) and compact form-factor (approx. 228 × 76 × 39 mm, ~465 g) for portability.

• Capable of measuring both one-phase and balanced three-phase installations (3-wire or 4-wire), making it adaptable across broad applications.

Includes

• Test lead kit
• Type K probe
• Carrying case
• 9V battery