Accessories
4.11 Test devices
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
509
Test devices are required in order to perform local tests on 3VA2 molded case circuit
breakers equipped with electronic trip units (ETUs).
Two versions of the test devices are available:
● TD300 activation and trip box
● TD500 test device
Functional scope of test devices
1)
One energy transformer, one Rogowski coil
2)
Via powerconfig
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).
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