Description
M-SYSTEM FR-3A-L
Provides reliable electrical isolation and signal conditioning for industrial control systems, helping protect control equipment from ground loops, noise, and voltage differences.
| Brand | M-SYSTEM |
| Model | FR-3A-L |
| Voltage | 24 V DC |
| Country of Origin | Japan |
| Weight | Approximately 0.2 kg |
| Dimensions | 72 x 36 x 110 mm |
| Warranty | 6 months |
| Certifications | CE, UL, RoHS |
| SKU / MPN | FR-3A-L |
| What’s in the box | M-SYSTEM FR-3A-L signal isolator, mounting hardware, instruction manual |
| Product Type | Signal isolator and signal conditioner |
| Input Signal | Industrial analog signal, model-dependent |
| Output Signal | Isolated analog signal, model-dependent |
| Isolation | Input-to-output and power isolation |
| Accuracy | Approximately 0.1% of span |
| Mounting | DIN rail or compact panel mounting |
Key benefits: Galvanic signal isolation, improved noise immunity, compact construction, dependable industrial operation, and simplified integration with PLC and DCS systems.
Typical applications: Process instrumentation, PLC and DCS interfaces, factory automation, control panels, sensor signal conditioning, and ground-loop prevention.
Lifecycle: Active product; availability and specifications should be confirmed with M-SYSTEM or an authorized distributor.
Our Advantages
Exact match for many brands
We make replacements easy with an exact match for almost any brand.
We use OEM catalogs to match your part number
Don't worry about ordering the wrong part by matching your part number with our OEM catalogs.
Competitively priced
Shop with confidence knowing we are offering very competitive pricing!
Orders usually ship the same day
Rest assured your order will arrive as soon as possible knowing we usually ship the same day.
Individually inspected
Before any package is shipped we carefully inspect every product to ensure quality.
Guaranteed for one full year
All of our New Surplus and Reconditioned products come with a 1 year warranty.
Run Business
Building a reputation for quality products at a reasonable price. Our inventory is far more extensive than what can be represented on our web site, so please call one of our knowledgeable salesmen with your specific needs.







Michael T. –
Received the connectors and cables quickly. All items were as described.