Category mismatch — this is not an MCCB
The 140NOE25100 is listed under Molded Case Circuit Breakers (MCCB), but its description — 10BASE-FO fiber optic TCP/IP communication module — identifies it as a Modicon Quantum series Ethernet module, not a breaker. This is likely a cataloging error in the distributor system. The part is a network interface module for Modicon Quantum PLC racks, providing a 10BASE-FL fiber optic TCP/IP connection to the control network.
Lifecycle status — obsolete, no direct replacement
For a BOM line requiring this exact module, sourcing goes through independent surplus channels. Quantities are lot-specific and confirmed at RFQ; no pin-compatible drop-in replacement exists from the original manufacturer.
Sourcing posture for obsolete network modules
If the customer's approved vendor list (AVL) requires an active Schneider part, a deviation or change request is needed. The functional replacement path typically involves migrating to a newer Modicon Quantum or M580 Ethernet module, which requires a different rack slot and firmware revision.