The Eaton RT-20A is identified as a Ratio Transformer, a precision voltage divider designed for specific frequency ranges and applications. It is not a miniature circuit breaker as initially described. The available technical information pertains to its function as a voltage divider, its ratio range, and its use in calibration and measurement scenarios.
### Technical Specifications
* **Device Type:** Ratio Transformer / Precision Voltage Divider
* **Manufacturer:** Eaton
* **Model:** RT-20A
### Electrical Specifications
* **Frequency Range:** 50 Hz to 10 kHz
* **Input Impedance:** High
* **Ratio Range:** -0.11111 to +1.11111
### Applications
The Eaton RT-20A Ratio Transformer is suitable for applications requiring precise voltage division and ratio measurements, including:
* Checking resolvers and servos
* Voltmeter calibration
* Computer testing
* Transformer turns ratio measurements
* Ratio arms of bridges
### Physical Characteristics
* **Form Factor:** Available in case or rack mount configurations.
* **Dimensions:** Specific dimensions vary by mount type (case or rack). Rack mount dimensions are approximately 19″L x 5¼”H x 15¾”D. Case mount dimensions are approximately 17″W x 5″H x 16¾”D.
* **Weight:** Approximately 13.5 lbs for rack mount and 16 lbs for case mount.
### Features
* **Precision:** Provides extreme accuracy and high resolution in the measurement and generation of voltage ratios.
* **Stability:** Operates without recalibration over a wide range of environments.
* **Transient Suppression:** Incorporates switching transient suppression, crucial for use in bridge circuits with sensitive null indicators.
* **User Interface:** Features seven in-line control knobs for quick and easy setting of required values.
* **Output Continuity:** Unique circuitry keeps the output connected while settings are being changed, minimizing switching transients.
* **Accuracy Traceability:** Supplied with certificates of accuracy showing traceability to NBS (National Bureau of Standards).
### Compatibility
* **Integration:** Designed for use in instrument standards and calibration laboratories. Can be integrated into automated measurement systems via external calculators or computers when paired with a compatible programmable interface (e.g., Eaton PRT-10 with IEEE-488/GPIB compatibility).
Why Choose Aumictech for the Eaton RT-20A?
At Aumictech, we specialize in supplying high-end test and measurement equipment. Whether you need precision voltage division, accurate ratio measurements, or reliable calibration support for the Eaton RT-20A, our team ensures this instrument delivers maximum performance for your laboratory or enterprise application.


















