Fluke 1503 Insulation Resistance Meter
A reliable insulation fault today saves a costly motor failure tomorrow. The Fluke 1503 insulation resistance meter is a compact, CAT IV-rated megohmmeter built for electricians and maintenance teams who test wiring, cables, and motor windings on a regular basis. It combines insulation resistance testing, earth bond resistance, and AC/DC voltage measurement in one rugged, battery-powered tool — backed by 100% genuine Fluke warranty and fast delivery across Bangladesh from Tools.com.bd.
Key Specifications
| Parameter |
Specification |
| Insulation resistance range |
0.01 MΩ – 2000 MΩ |
| Test voltages |
500V & 1000V DC |
| Earth bond resistance range |
0.01 Ω – 20.00 kΩ |
| Short circuit current |
>200 mA |
| AC/DC voltage range |
Up to 600V (0.1V resolution) |
| Safety rating |
CAT IV 600V |
| Standards compliance |
IEC/EN 61010-1, ANSI/ISA 82.02.01, CSA |
| Ingress protection |
IP40 |
| Battery life |
1,000+ insulation tests / 2,500+ earth bond tests (4 AA) |
| Dimensions |
5.0 x 10.0 x 20.3 cm |
| Weight |
550g |
| Warranty |
1-year manufacturer warranty |
Why Choose the Fluke 1503?
- 500V & 1000V test voltages — covers standard wiring checks and motor winding inspections, the two voltages used in most real-world jobs
- Built-in earth bond resistance testing — works as a true all-in-one tester, not just an insulation checker
- Live circuit detection — automatically blocks testing if voltage above 30V is detected, protecting both you and the equipment
- Auto-discharge in under 0.5 seconds — clears residual capacitive voltage safely after every test
- CAT IV 600V rated — the highest overvoltage safety category, suitable for industrial environments and the origin of an electrical installation
- Rugged IP40 build — passes 1-meter drop testing (IEC 61010-1) and MIL-PRF-28800F vibration testing
- Remote probe included — makes repetitive or hard-to-reach testing faster and easier
What's in the Box
- Fluke 1503 Insulation Resistance Meter
- Remote probe
- Test leads & test probes
- Alligator clips
- Holster
- User documentation
- 1-year manufacturer warranty
Optional accessory: Fluke TPAK Magnetic Hanging Kit for hands-free operation.
Fluke 1503 vs Fluke 1507 — Quick Comparison
| Feature |
Fluke 1503 |
Fluke 1507 |
| Test voltages |
500V, 1000V |
50V, 100V, 250V, 500V, 1000V |
| Insulation range |
0.01 MΩ – 2000 MΩ |
0.01 MΩ – 10 GΩ |
| Auto PI/DAR calculation |
No |
Yes |
| Pass/Fail compare function |
No |
Yes |
| Best for |
Standard residential/commercial wiring tests |
Advanced industrial & trend analysis |
Read the full Fluke 1503 vs 1507 comparison guide →
Who Is This For?
Residential & commercial electricians, preventive maintenance technicians, and any team that regularly monitors motor and cable insulation condition and wants a dependable, no-fuss megohmmeter without paying for features they won't use.
Why Buy from Tools.com.bd
✔ 100% genuine Fluke product — no grey market, no counterfeits ✔ Full manufacturer warranty honored ✔ Fast delivery across Bangladesh ✔ Dedicated after-sales support
Related products: Fluke Digital Multimeters · Earth Ground Resistance Testers · Full Fluke Range
FAQ
What is the price of Fluke 1503 in Bangladesh? Check current pricing and stock availability at the top of this page. All units are sold with full manufacturer warranty through Tools.com.bd.
What is the maximum insulation resistance the Fluke 1503 can measure? Up to 2000 MΩ. For a higher range up to 10 GΩ, see the Fluke 1507.
What test voltages does the Fluke 1503 support? 500V and 1000V DC — the two most commonly used voltages for standard insulation testing.
Does the Fluke 1503 have PI/DAR functions? No. For automatic PI/DAR calculation, the Fluke 1507 is the right choice.
Is the Fluke 1503 safe for industrial use? Yes. Its CAT IV 600V rating is the highest overvoltage safety category, suitable for use at the origin of an electrical installation, including industrial settings.
How long do the batteries last? At least 1,000 insulation tests or 2,500 earth bond resistance tests on 4 AA alkaline batteries.
What's included in the box? Remote probe, test leads, test probes, alligator clips, holster, user documentation, and a 1-year warranty.
Specifications referenced from the official Fluke 1503 product page.
Fluke 1503 Insulation Resistance Meter
Key features:
- A rugged, compact insulation resistance tester for residential and commercial electricians
- Performs insulation tests from 0.01 MΩ to 2000 MΩ
- Offers two insulation test voltages: 500 V and 1000 V
- Includes live circuit detection to prevent insulation test if voltage >30 V is detected
- Measures resistance from 0.01 Ω to 20.00 kΩ
Specifications: Fluke 1503 Insulation Resistance Meter
| 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 the 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 life |
Insulation test use: |
The 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: |
The 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 the range |
| Included accessories |
TL224 Test Leads, TP74 Test Probes, clips PN 1958654 (red) and PN 1958646 (black), holster and remote probe |
Fluke 1503 Insulation Resistance Meter
Includes:
- Remote probe
- Test leads
- Test probes
- Alligator clips
- User documentation
Accessories: Fluke 1503 Insulation Resistance Meter
Cases (5)
- Fluke C101 Hard Case
- Fluke C25 Large Soft Case for DMMs
- Fluke CAMO-37 Camouflage Carrying Case
- Fluke CAMO-C25 Camouflage Carrying Case
- Fluke CXT170 Extreme Case
Other (1)
- Fluke TPAK ToolPak™ Magnetic Meter Hanger
Write a Review
Solid and dependable insulation resistance meter. It delivers accurate results, is straightforward to operate, and works great for routine testing and maintenance tasks.
Solid and dependable insulation resistance meter. It delivers accurate results, is straightforward to operate, and works great for routine testing and maintenance tasks.
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