Accessories
4.11 Test devices
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
511
TD300: Connect, switch on and off, disconnect
Connect the TD300 to the 3VA2 molded case circuit breaker
1.
Disconnect the molded case circuit breaker from the power supply.
2.
Insert the connecting cable in the test socket of the ETU.
Switch the TD300 on and off
1.
Check whether the molded case circuit breaker is disconnected from the power supply. If
it is not, disconnect it.
2.
Push the slide switch to ON.
The LED labeled "ACT" on the TD300 lights up and the ETU display is activated. The
TD300 is ready.
If the "ACT" LED does not light up:
–
Push the slide switch to OFF.
–
Detach the connecting cable from the molded case circuit breaker.
–
Replace the batteries.
–
Follow the correct sequence of steps to connect the unit to the molded case circuit
breaker again.
–
Push the slide switch to ON.
3.
Push the slide switch to OFF.
The LED labeled "ACT" on the TD300 goes out to indicate that the unit is switched off.
Disconnect the TD300 from the 3VA2 molded case circuit breaker
1.
Switch off the molded case circuit breaker (OFF position).
2.
Detach the connecting cable from the molded case circuit breaker.
LED states when the TD300 and the molded case circuit breaker are switched on
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