Page 220 - B_ELSB_Cat_2022_01_MCBs

1/220 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 9AKK 107991 A8329
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MCBs technical details
S800 range features

Play it safe: display the operational state
The mechanical drive of the S800 high performance MCB is equipped with a trip-free
release. It therefore switches independent of the actuating force or speed on the actuating
lever.
The trip position display thereby always reliably displays the exact position of the moving
contact. The trip position provides additional trip detection allowing you to easily find the
reason for the cut-off. Because the switch lever moves to the middle position in case
of thermal or magnetic tripping, the user sees at a glance that this is an error state and can
then initiate suitable measures.
*Middle position of switch lever, see picture

Reliable: the disconnector properties
In OFF position (0 position), the S800 high performance MCB guarantees safe electrical
isolation of the circuit compliant to IEC 60947-2.

Flexible: the installation
The S800 high performance MCB can be directly mounted onto any position on the DIN
mounting rail without any impairment to its characteristics. Because the pole dimensions
are identical for all rated currents, installation in switching systems is simplified.
The S800 can be installed in different ways:
• together with other breakers in the same DIN rail horizontally or vertically
• as an individual breaker in a single fixed compartment where the breaker is switched on/
off with a rotary handle from the door, and the breaker is mounted on the wall of the panel
• as an individual breaker in a single withdrawable module, when requirements for high
availability in the installation are a must

Cage and ring terminals
When ordering you can choose between cage terminals or ring terminal connectors. No
matter which type you select, both connection options guarantee a high degree of reliability.

Doesn’t let go: the replaceable terminal adapter *
The S800 standard equipment with interchangeable terminal adapter for wires, cables and
rigid conductors guarantees a high level of flexibility and comfort. Fast and safe connection
of the conductors is ensured by the “onboard terminal shutter” integrated into the body
of the terminal, thereby preventing incorrect underclamping of the connections.
* Available for the S, N, C, U and PV series.