The TD300 activation and trip box
The TD300 activation and trip box is a mobile, battery-operated local test device. Its purpose is:
To supply the ETU with power so that the ETU can be parameterized when the molded case circuit breaker is switched off and de-energized.
To test and service the electronic trip unit (ETU).
The power supply is provided by two AA batteries included in the scope of supply.
The TD300 activation and trip box is designed for ease of handling with dimensions of 76 x 107 x 25 mm (W x H x D).