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Fluke 1503 Insulation Resistance Tester
  • Fluke 1503 Insulation Resistance Tester
  • Fluke 1503 Insulation Resistance Tester

Fluke 1503 Insulation Resistance Tester

Fluke authorised distributor and calibration house.

Includes: Fluke 1503 Insulation Tester, Remote Probe, Test Leads, Test Probes, Alligator Clips, Holster, User Documentation.

£258.75 Save 25%
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For basic electrical insulation testing, choose the compact Fluke 1503 - a rugged, compact tool that handles the most common tests at a most affordable price. The remote test probe makes it easy to perform insulation and continuity tests in awkward area.

The Fluke 1503 enters the “Sleep mode” and blanks the display if there is no function change or button press for 10 minutes. This is done to conserve battery power. The 1503 comes out of Sleep mode when a key is pressed or when the rotary switch is turned.


Repetitive or hard-to-reach testing is easy with the remote test probe.
Live circuit detection prevents insulation test if voltage > 30 V is detected.
Auto-discharge of capacitive voltage for added user protection.
Save battery power with auto power off.
Read measurements easily with large, backlit display.
CAT IV 600 V overvoltage category rating for added user protection.
Accepts optional Fluke TPAK magnetic hanging system to free your hands for other work.

Fluke 1503 Specifications
AC/DC Voltage Measurement
Range 600.0 V.
Resolution 0.1 V.
Accuracy ± (2 % + 3).
Input impedance 3 MΩ (nominal), < 100 pF.
Common mode rejection ratio
(1 kΩ unbalanced)
> 60 dB at dc, 50 or 60 Hz.
Overload Protection 600 V rms or dc.
Earth Bond Resistance Measurement
Range/Resolution 20.00 Ω - 0.01 Ω
200.0 Ω - 0.1 Ω
2000 Ω - 1.0 Ω
20.00 kΩ - 0.01 kΩ.
Accuracy ± (1.5 % + 3).
Overload Protection 2 V rms or dc.
Open Circuit Test Voltage > 4.0 V, < 8 V.
Short circuit current > 200.0 mA.
Insulation Specifications
Measurement Range 0.01 MΩ to 2000 MΩ.
Test Voltage 500 V, 1000 V.
Test Voltage Accuracy + 20 %, - 0 %.
Short circuit current 1 mA nominal.
Auto Discharge Discharge time < 0.5 second for C = 1 µF or less.
Live circuit indicator Inhibit test if terminal voltage > 30 V prior to initialisation of test.
Maximum Capacitive Load Operable with up to 1 µF load.
Measure Accuracy 500 V: ±(1.5 % + 5)
1000 V: ±(1.5 % + 5) to 2000 MΩ, ±(10 % + 3) above 2000 MΩ.
General Specifications
Maximum voltage applied to any terminal 600 V ac rms or dc.
Storage Temperature -40 °C to 60 °C (-40 °F to 140 °F).
Operating Temperature -20 °C to 55 °C (-4 °F to 131 °F).
Vibration Random, 2 g, 5-500 Hz per MIL-PRF-28800F, Class 2 instrument.
Shock 1 meter drop per IEC 61010-1 2nd Edition (1 meter drop test, six sides, oak floor).
Safety Complies with ANSI/ISA 82.02.01 (61010-1) 2004, CAN/CSA-C22.2 NO. 61010-1-04, and IEC/EN 61010-1 2nd Edition for measurement category IV 600 V (CAT IV).
Certifications CSA per standard CSA/CAN C22.2 No. 61010.1-04; TUV per standard IEC/EN 61010-1 2nd Edition.
Batteries Four AA batteries (NEDA 15A or IEC LR6).
Battery Life 1000 insulation tests (with fresh alkaline batteries at room temperature),
2500 earth bond resistance measurements (with fresh alkaline batteries at room temperature).
IP Rating IP40.
Over-range capability 110 % of range.
Dimensions 5.0 cm H x 10.0 cm W x 20.3 cm L (1.97 in H x 3.94 in W x 8.00 in L).
Weight 550 g (1.2 lb).
Fluke 1503 warranty One year.


Fluke 1503-1507 Datasheet

PDF Specifications of the Fluke 1503 & 1507 Insulation Resistance Testers.

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Fluke 1503 Insulation Resistance Tester
C25 Soft meter case. Zippered, with padding and inside pocket. 681114
CXT170 Rugged Pelican hard case. 3352567
TPAK ToolPak™ Magnetic Meter Hanger Kit includes:
9 inch hook and loop strap
Universal hanger clip
Hook hanger for non magnetic surfaces
Strong magnet.

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