Description
Renishaw RESA30USA100B
High-precision absolute encoder readhead for accurate position feedback in demanding industrial motion systems
| Brand | Renishaw |
| Model | RESA30USA100B |
| Voltage | 5V DC |
| Country of Origin | United Kingdom |
| Weight | Approximately 20 g |
| Dimensions | Approximately 56 x 38 x 16 mm |
| Warranty | 6 months |
| Certifications | CE, UKCA, RoHS compliant |
| SKU / MPN | RESA30USA100B |
| What’s in the box | Encoder readhead, connecting cable, installation documentation |
| Encoder Type | Absolute optical encoder readhead |
| Resolution | 30 nm to 1 nm selectable |
| Interface | BiSS or proprietary serial encoder interface |
| Supply Voltage | 5V DC |
| Operating Temperature | 0°C to 50°C |
| Protection Rating | IP20 |
Key benefits: Non-contact optical measurement, high resolution, compact construction, reliable absolute position capture, straightforward integration with compatible controllers
Typical applications: CNC machine tools, semiconductor equipment, robotics, precision stages, laboratory automation, optical inspection systems
Lifecycle: Active Renishaw precision encoder product, engineered for long-term industrial use and supported through the Renishaw product lifecycle
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.







Robert M. –
Tested the proximity switch, response time is spot on. Recommended for industrial use.