Description
2.2 Circuit breakers and non-automatic circuit breakers
3WA Air Circuit Breakers
Equipment Manual, 05/2021, 92310000002-03
33
2.2.2.3 Secondary disconnect terminals
Description
Internal electrical accessory components such as the closing coil receive their supply voltage
via the secondary disconnect terminals.
A maximum of four secondary disconnect terminal blocks are available for size 1 circuit
breakers and up to five for sizes 2 and 3. Included in the scope of supply as standard:
Non-automatic circuit breaker:
3 secondary disconnect terminal blocks (X5 to X7)
4 secondary disconnect terminal blocks (X5 to X8)
Communication-capable
non-automatic circuit breaker:
4 secondary disconnect terminal blocks (X5 to X8)
Circuit breaker with ETU600 LSIG Hi-Z:
5 secondary disconnect terminal blocks (X5 to X9)
All secondary disconnect terminals are designed with push-in technology as standard. With
this innovative technology, solid conductors and conductors with end sleeves are simply
inserted all the way into the clamping point (time savings of up to 50%). Finely stranded
conductors can also be connected without much effort.
As an option, the secondary disconnect terminals are also available with screw-type
technology from the factory.
For more information on the secondary disconnect terminals, see Chapters Secondary
disconnect terminals for fixed-mounted circuit breakers (Page 224) and Secondary disconnect
terminals for withdrawable circuit breakers (Page 227).
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