Technical specifications and features of the Fluke 1587/1577 insulation multimeters.
The Fluke 1587/1577 Insulation Multimeters combine a digital insulation tester with a true‑RMS multimeter in a compact handheld unit. They are designed for troubleshooting and preventive maintenance on motors, generators, cables, and switch‑gear.
Key capabilities include large backlit display, multiple test voltages, live‑circuit detection, auto‑discharge, CAT III 1000 V / CAT IV 600 V safety ratings, and optional accessories such as a remote probe and magnetic hanging system.
| Insulation test range (1587) | 0.01 MΩ to 2 GΩ |
|---|---|
| Test voltages (1587) | 50 V, 100 V, 250 V, 500 V, 1000 V |
| CAT safety rating | CAT III 1000 V, CAT IV 600 V |
| Battery life (meter use) | 1000 hours |
| Size (H × W × L) | 5.0 cm × 10.0 cm × 20.3 cm |
| Weight | 550 g (1.2 lb) |
The 1587 model tests insulation from 0.01 MΩ up to 2 GΩ.
It can perform at least 1 000 insulation tests with fresh alkaline batteries at room temperature.
It complies with CAT III 1000 V and CAT IV 600 V measurement categories.
The instrument measures 5.0 cm high, 10.0 cm wide, and 20.3 cm long.