The Columbia Electric Manufacturing P-30 Tong Test is an industrial clamp-style current measuring instrument designed to measure electrical current up to 30 amps. Its tong-style design lets a conductor be measured without disconnecting the circuit, covering a 0–30 A range for quick checks. Ideal for field electrical maintenance and installation work, it supports in‑place current verification on panels, feeders, and machines in industrial environments. This model—P-30 Tong Test—offers a direct, noninvasive way to confirm current draw during servicing and commissioning.
