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Fluke 1503

Insulation Resistance Tester

Order #: 45515EL

Mfg Part #: FLUKE-1503

$449.99 USD

$404.99 USD


2 In stock

Free shipping over $250

This product is available for shipping to United States, Canada and Puerto Rico only

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Overview :


The Fluke 1503 Insulation Tester is compact, rugged, reliable, and easy to use. With its multiple test voltages, it is ideal for many troubleshooting, commissioning, and preventative maintenance applications.

Additional features, like the remote probe on this tool save both time and money when performing tests.

Product Highlights

  • Fluke Model# 1503
  • Insulation test range:
  • 1503: 0.1 W to 2000 W
  • Insulation test voltages: 1503:500 V, 1000 V
  • Save both time and money with Automatic calculation of Polarization Index and Dielectric Absorption Ratio
  • 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 for added user protection
  • Auto-discharge of capacitive voltage for added user protection
  • AC/DC voltage: 0.1 V to 600 V
  • 200 mA Continuity
  • 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
  • Remote probe, test leads, probes and alligator clips included with each tester
  • Accepts optional Fluke TPAK magnetic hanging system to free your hands for other work
  • Four AA alkaline batteries (NEDA 15 A or IEC LR6) for at least 1000 insulation tests
  • One year warranty

Each Unit Includes

  • TL224 Test Leads
  • TP74 Test Probes
  • Clips PN 1958654 (red) and PN 1958646 (black)
  • Holster
  • Remote probe

Specifications :

AC/DC Voltage Measurement
Accuracy Range 600.0 V
Resolution 0.1 V
50 Hz to 400 Hz ±(% of Rdg + Digits) ±(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 initialization 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)
Temperature coefficient 0.05 x (specified accuracy) per °C for temperatures < 18°C or > 28°C (< 64°F or > 82°F)
Relative humidity    
0% to 95% @ 10°C to 30°C (50°F to 86°F)
0% to 75% @ 30°C to 40°C (86°F to 104°F)
0% to 40% @ 40°C to 55°C (104°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)
Electromagnetic compatibility In an RF field of 3 V/M, accuracy = specified accuracy (EN 61326-1:1997)
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 llife Insulation test use: Tester can perform at least 1000 insulation tests with fresh alkaline batteries at room temperature. These are standard tests of 1000 V into 1 MΩ with a duty cycle of 5 seconds on and 25 seconds off.
Resistance measurements: Tester can perform at least 2500 earth bond resistance measurements with fresh alkaline batteries at room temperature. These are standard tests of 1 Ω with a duty cycle of 5 seconds on and 25 seconds off.
Size (H x W x L) 5.0 x 10.0 x 20.3 cm (1.97 x 3.94 x 8.00 in)
Weight 550 g (1.2 lb)
IP rating IP40
Altitude Operating 2000 m CAT IV 600 V, 3000 m CAT III 600 V
Non-operating (storage) 12,000 m
Over-range capability 110% of range
Included accessories TL224 Test Leads, TP74 Test Probes, clips PN 1958654 (red) and PN 1958646 (black), holster and remote probe

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