The matt:e MTE/A 5P 40A 5 pole MCB provides a simple, cost-effective solution for PEN fault protec...The matt:e MTE/A 5P 40A 5 pole MCB provides a simple, cost-effective solution for PEN fault protection. This product has a C curve tripping characteristic and enables the connection of an EV charge point to the PME earthing facility without the use of earth electrodes. This product features a selectable manual or automatic reset function if a PEN fault is detected. Specifications: Breaking Capacity 6kA, Current Rating 40A, Mounting DIN Rail, No. of Poles 5, Tripping Characteristic Curve C, Type MCB, Voltage Rating 230/400V.
The matt:e MTE/A 5P 40A is a 5-pole Miniature Circuit Breaker (MCB) designed for electrical installations requiring PEN fault protection, particularly for connecting EV charge points to PME earthing facilities without needing earth electrodes. Its key benefit is simplifying EV charger installations by providing integrated PEN fault detection and protection. A potential consideration is its specific application for EV charging setups, meaning it might be over-specified for standard circuit protection needs. Key features include a C-curve tripping characteristic, 6kA breaking capacity, 40A current rating, DIN rail mounting, and a selectable manual or automatic reset function upon PEN fault detection.
All features
Model Part Number
MTE/A 5P 40A
Brand
matt:e
Extended Product Information
FAQs
What is PEN fault protection?
PEN fault protection refers to safety measures designed to detect a break in the combined Protective Earth (PE) and Neutral (N) conductor (PEN) in an electrical system. This is crucial for systems like PME, where a broken PEN conductor could make metallic parts dangerous.
Can this MCB be used for general circuit protection?
While it offers circuit protection, its primary design is for PEN fault protection with EV charge points on PME systems. For general circuit protection without this specific requirement, a standard MCB may be more appropriate.
What does 'C curve' mean?
A C-curve tripping characteristic means the MCB will trip if the current reaches 5 to 10 times its rated current. This makes it suitable for circuits with expected moderate inrush currents, like EV chargers or motors.
How do I switch between manual and automatic reset?
The method for switching between manual and automatic reset is typically a physical switch or lever on the device itself. Consult the product's detailed installation manual for the exact procedure.
What is a PME earthing system?
PME stands for Protective Multiple Earthing. It's an earthing system common in many UK distribution networks where the neutral conductor is earthed at multiple points along the supply route, effectively acting as a combined neutral and earth conductor (PEN).
What is the breaking capacity of this MCB?
The breaking capacity is 6kA, which indicates the maximum fault current the MCB can safely interrupt without damage.
Do I still need an earth electrode with this device?
No, one of the key benefits of this specific MCB is that it enables the connection of an EV charge point to a PME earthing facility *without* the use of additional earth electrodes.
Troubleshooting
MCB is not switching on or providing power.
Verify that the main power supply is live and correctly connected to the input terminals. Check that the MCB is fully engaged on the DIN rail. Ensure the circuit breaker hasn't tripped due to an overload or fault.
MCB trips immediately upon connecting the EV charger.
Check for a short circuit in the EV charger or its wiring. Ensure the MCB is the correct rating (40A) for the load. Confirm the installation is correctly configured for PME earthing.
PEN fault detected and MCB has tripped (manual reset model).
Investigate the PME earthing system for the cause of the fault. Address the underlying issue in the earthing system before attempting a manual reset. Ensure the reset button is pressed firmly.
Automatic reset function is not engaging after a PEN fault.
Verify the reset function is correctly configured for automatic mode. Ensure the PEN fault condition has been cleared from the system. If the issue persists, a manual inspection of the earthing and the MCB may be required.
Pros and Cons
Pros
Simplifies EV charge point installation on PME systems.