FLUKE 1503 Insulation Resistance Meter
Looking for a tough, easy-to-use tester for everyday insulation checks? The FLUKE 1503 insulation tester is built to deliver reliable, accurate results in a simple and affordable package. Designed for electricians, technicians and maintenance teams, the FLUKE 1503 is perfect for basic residential and commercial insulation resistance testing.
This rugged meter is part of FLUKE’s trusted range of test tools and is known for its reliability and simplicity. Whether you‘re testing wiring, motors or panels, the FLUKE 1503 insulation tester gives you everything you need—and nothing you don’t.
▶ Video: FLUKE Insulation Testers - Part Of Your Preventive Maintenance Plan
What Is the FLUKE 1503?
The FLUKE 1503 is a compact insulation resistance tester made for basic insulation testing tasks. It features two selectable test voltages—500 V and 1000 V—and can measure insulation resistance from 0.1 MΩ up to 2000 MΩ.
It‘s an excellent tool for electricians working in homes, schools, offices, and small industrial settings. With helpful extras like a remote probe, auto discharge of capacitive voltage, and live circuit detection, the FLUKE 1503 insulation tester saves time while keeping the user safe.
Key Features of the FLUKE 1503
| Feature | Details |
| Insulation Test Range | 0.1 MΩ to 2000 MΩ |
| Test Voltages | 500 V and 1000 V |
| AC/DC Voltage Measurement | 0.1 V to 600 V (AC DC voltage measurements) |
| Continuity Testing | Earth bond resistance testing with 200 mA |
| Resistance Measurement | Resistance measurements from 0.01 Ω to 20.00 kΩ |
| Live Circuit Detection | Stops insulation testing if voltage exceeds 30 V |
| Auto-Discharge | Auto discharge of capacitive voltage after insulation testing |
| Remote Probe | Ideal for hard-to-reach or repetitive testing |
| Display | Large, easy-to-read backlit screen |
| Safety Rating | CAT IV 600 V overvoltage protection, compliant with IEC 61010 |
| Power Source | 4 × AA alkaline batteries (NEDA 15A or IEC LR6) |
| Battery Life | Performs over 1000 insulation tests on one battery set |
| Auto Power Off | Extends battery life when not in use |
| Mounting Options | Compatible with optional FLUKE TPAK hanging system |
| Operating Temperature | 0°C to 50°C (operating temperature range) |
| Measurement Capabilities | Supports measurements ranging from 0.1 MΩ up to 2000 MΩ |
| Test Range | Comprehensive test range with selectable voltage levels |
| Warranty | 1-year manufacturer warranty |
Built for the Real World
The FLUKE 1503 insulation tester is small but strong. It’s designed to handle the knocks and bumps of daily use. The included remote probe makes it much easier to test in tight spots or perform the same test repeatedly. With the auto power-off function, you won’t waste battery power if you forget to switch it off.
It also features auto discharge of capacitive voltage and CAT IV safety protection for enhanced user safety. The built-in live circuit detection feature will block testing if voltage exceeds 30 V, ensuring both the operator and equipment stay safe.
Where Can the FLUKE 1503 Be Used?
This meter is perfect for:
- Home and commercial electrical installations
- Periodic inspection and testing
- Checking insulation in appliances or motors
- General maintenance and repair work
Whether you’re working in a new building, troubleshooting faults, or maintaining existing equipment, the FLUKE 1503 insulation tester helps ensure everything is safe and up to standard.
Why Choose the FLUKE 1503?
- ✅ Easy to Use – Straightforward controls and clear results make it suitable for beginners and professionals alike.
- ✅ Accurate and Trusted – Built by FLUKE, one of the most respected names in electrical testing.
- ✅ Safe and Reliable – Designed with essential safety features like auto discharge and CAT IV protection.
- ✅ Portable – Lightweight and compact for use on the move or in awkward locations.
- ✅ Cost-Effective – High performance without the high price tag.
What comes with the FLUKE 1503?
- FLUKE 1503 Insulation Resistance Meter
- Remote Test Probe
- Test Leads
- Test Probes
- Alligator Clips
- User Documentation / Manual
The FLUKE 1503 insulation tester is a must-have for anyone performing regular insulation checks. It‘s compact, dependable and packed with safety features like auto discharge of capacitive voltage, CAT IV protection, and IEC 61010 compliance. If you’re looking for a trusted, no-fuss solution that delivers accurate results, the FLUKE 1503 is the tool for the job.
❓ Frequently Asked Questions (FAQ)
Q1: Can the FLUKE 1503 test live circuits?
A. No. The FLUKE 1503 insulation tester will not perform an insulation test if it detects more than 30 V on the circuit. This protects the user from shock and prevents false readings.
Q2: What kind of batteries does it use?
A. The FLUKE 1503 runs on four standard alkaline batteries and can perform over 1000 insulation tests on one set.
Q3: Does it come with all necessary accessories?
A. Yes. The meter comes with test leads, a remote probe, test probes, alligator clips, and a user manual.
Q4: Is it suitable for students or trainees?
A. Absolutely. The clear display and simple operation make it ideal for training environments or apprentices.
Q5: How accurate is it?
A. The FLUKE 1503 offers excellent accuracy for basic insulation testing needs, with precise resistance measurements across all ranges.