ComPact NSX, NSU, NSC 400 – 630 amps
EasyPact CVS, EZC, EZD, EZS, CSU 400 – 630 amps
PowerPact L 250 – 600 amps
Date range of potentially affected items:
TC-2019-W21-3 ~ TC-2019-W22-2
TC-2019-W24-2 ~ TC-2019-W24-4
TC-2019-W46-2 ~ TC-2019-W47-3
TC-2019-W51-5 ~ TC-2021-W14-4
Electrical protection device that is used to protect an electrical circuit from excessive current, which can cause overload or short-circuit.
The moulded case circuit breakers (MCCB) within the scope of the corrective action have been identified as presenting a risk of overheating, potentially resulting in fire, the production of smoke, or arc flash in rare circumstances.
The affected MCCBs may contain a non-conforming component, which may result in the circuit breaker not operating as intended under certain conditions. A short circuit on the electrical downstream network will not trigger the safety protection of the MCCB because of this non-conforming component. Consequently, high current will flow in the load, cable and MCCB, which may lead to fire and smoke depending on the size of the installation and of the short-circuit level.
The moulded case circuit breakers within the scope of the corrective action do not meet the requirements of the Electrical Equipment (Safety) Regulations 2016.