The Merlin Gerin 685836A is a secondary injection test set. In layman’s terms, it’s a specialized tool used by electricians to safely test certain components of electrical systems without actually connecting them to high voltage.
Here’s a breakdown of what it means:
Testing Trip Units: The main application is testing trip units, which are the parts of circuit breakers responsible for tripping (interrupting) the circuit in case of overload or fault conditions. The test set simulates overload or short circuit scenarios by injecting a controlled current into the trip unit, verifying its functionality and response time.
Specific to ST and CM Trip Units: According to available information, this test set is designed to work specifically with ST and CM trip units manufactured by Merlin Gerin. These are likely model designations for specific types of trip units within their product line.
Safe Alternative to High Voltage Testing: Using a secondary injection test set is a much safer alternative to testing trip units with live high voltage. It minimizes the risk of accidents and equipment damage.
- Improve safety and reliability of circuit breakers
- Reduce downtime and maintenance costs
- Increase productivity and efficiency
- Extend the life of circuit breakers
