Secondary Disconnect Terminals - Siemens SENTRON 3WA1 Manual

Description
2.2 Circuit breakers and non-automatic circuit breakers
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:
●
Circuit breaker:
●
Communication-capable non-automatic
●
circuit breaker:
Circuit breaker with ETU600 LSIG Hi-Z:
●
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 298) and Secondary
disconnect terminals for withdrawable circuit breakers (Page 299).
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3 secondary disconnect terminal blocks
(X5 to X7)
4 secondary disconnect terminal blocks
(X5 to X8)
4 secondary disconnect terminal blocks
(X5 to X8)
5 secondary disconnect terminal blocks
(X5 to X9)
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06