Carriere STS100 Secondary Injection Relay Tester

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The Carriere STS100 secondary injection relay tester is a trip device used for the testing of Digital 600 and FB600E/ER trip units on circuit breakers. Designed with features such as a built-in timer, protective circuitry, and an ammeter and current source, the STS100 protects equipment from overheating while performing relay tests. To enhance testing capabilities, the STS100 weighs in at a portable 28 lbs., and contains digital readouts that provide accurate time and current test results and information.