Features & Benefits
Three Elements for Three Channels
The Bolt records three current channels, and this set supplies a clamp for each of the three phases — full three-phase coverage without the added cost and bulk of a fourth clamp. It’s the right fit for standard three-phase studies where neutral current isn’t part of the measurement.
Two Ranges in One Clamp
The TLAR-S measures 20 A and 200 A AC on an adjustable range, with a 200 A continuous operating limit. Accuracy is 1.5% of reading ±0.1 A on the 20 A scale and 1.5% of reading ±0.5 A on the 200 A scale, across a 40 Hz to 10 kHz frequency range. Phase shift stays at or below 3 degrees from 1–20 A, 2 degrees from 20–80 A, and 2.5 degrees from 80–200 A, which keeps power and power factor measurements dependable across the full load range rather than only at the top of the scale.
Because the 20 A scale holds the same percentage accuracy at low current, the clamp is well suited to lightly loaded circuits and residential feeders, where a 200 A-only probe would leave you reading noise.
Built for Enclosures That Are Already Full
The clamp accepts conductors up to .59 in (15 mm), with an enclosure measuring 2.36 x 1.38 x 0.67 in. Four-foot probe leads and a 9-inch output cable, both rated to 600 V, give enough reach to route around existing equipment without crowding the recorder.
That compact footprint matters just as much with three clamps. In a panel where a full-size clamp won’t close on a single conductor, fitting three of them side by side often isn’t possible at all — the TLAR-S makes three-channel measurement practical in spaces where it otherwise isn’t.
Safe Installation, No Downtime
As a clamp-style current transformer, the TLAR-S measures without direct electrical contact and without breaking the circuit, so there is no shutdown to schedule and no customer interruption to coordinate. It is rated to IEC 61010-1, 600V CAT III, with IP40 probes, and operates from 14°F to 131°F (-10°C to 55°C) — suitable for both a short study and a permanent installation.
