Fluke 1535 2.5kV Insulation Tester 1 Teraohm Range CAT IV 600V for Motor Testing

The Fluke 1535 sits in the middle of the 1500 series and covers the majority of low voltage motor, cable and switchgear insulation tests. Its 2.5 kV maximum test voltage is enough to polarise most industrial windings, while the 1 TΩ range still resolves very dry insulation so trends stay meaningful year after year.

• New 1500 series control platform with clear test voltage selection
• 2.5 kV output with a 1 TΩ measuring range for dry winding assessment
• Automatic PI and DAR calculation with stored comparison results
• Live circuit warning and automatic capacitive discharge

• Test voltages of 250 V, 500 V, 1000 V and 2500 V
• Insulation resistance up to 1 TΩ
• Polarisation index and dielectric absorption ratio tests
• Timed test function for dielectric absorption measurement
• CAT IV 600 V rating with rugged field housing

Specifications are typical values for the standard version. Accessory sets and calibration options are quoted per project.

• Low voltage motor insulation resistance trending
• Cable insulation tests before re-energising feeders
• Switchgear and busbar insulation verification
• Subcontractor acceptance testing on new installations

The 1535 ships with high voltage test leads, alligator clips, charger, carry case and calibration certificate. Where 5 kV capability is not required, it delivers the same test routines as the 1537 at a lower cost, and we can supply both models for mixed asset registers.