matt:e MTE/A MCB - 100A - 5 pole - Curve C

A PEN fault occurs when the protective earth (PE) and neutral (N) conductors become disconnected or bonded incorrectly. This MCB provides integrated protection against such faults, which is crucial for safety, especially when connecting devices like EV chargers to PME earthing systems.

No, one of the key benefits of this matt:e MTE/A MCB is that it enables the connection of EV charge points to PME earthing facilities without the need for separate earth electrodes.

With manual reset, the MCB needs to be physically reset by hand after a PEN fault. With automatic reset, the MCB attempts to reset itself after a fault has cleared, offering convenience but requiring careful consideration of the installation's safety requirements.

This MCB features a C curve tripping characteristic, which is generally suitable for circuits with moderate inrush currents, such as lighting, socket outlets, and standard EV chargers. For loads with very high inrush currents, a different curve (like D) might be more appropriate, and professional advice should be sought.

The matt:e MTE/A 5P MCB is available in 40A, 63A, and 100A current ratings. This guide specifically covers the 100A model.

The breaking capacity of this MCB is 6kA, meaning it can safely interrupt fault currents up to 6000 Amperes.

A 5-pole MCB is typically required when you need to switch and protect all live conductors (L1, L2, L3) plus the neutral, especially in systems where neutral integrity is critical, such as with some EV chargers or specific industrial applications, and where PEN fault protection is also a requirement.

Verify the load does not exceed the 100A rating. Check for loose connections. Confirm the C curve characteristic is appropriate for the connected load's inrush current.

Ensure the fault condition has been resolved. If set to manual reset, attempt to reset manually. If the issue persists, the unit may require inspection or replacement.

Ensure the MCB is correctly wired and energized. Verify that the PEN fault detection circuit is functioning as expected. Consult the installation manual or a qualified electrician.

Do not attempt to install or use a damaged unit. De-energize the circuit and contact the supplier for a replacement.