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Description
PME / PEN Fault Detection Consumer Unit for 3 x 3 Phase EV Chargers
WCED WMTP36-R40CSP
The WCED WMTP36-R40CSP is a premium 3-phase consumer unit designed for high-demand EV charging systems, capable of supporting 3 x 3 phase EV chargers. It actively monitors PME (Protective Multiple Earthing) systems for faults, including PEN faults or PEN loss, disconnecting all phases and earth when necessary to ensure compliance and safety. This unit simplifies installation by removing the need for an earth rod while providing robust protection against overcurrents and surges.
Understanding PME Faults, PEN Faults, and PEN Loss
- PME Faults: These faults occur within a PME system when the combined Protective Earth and Neutral (PEN) conductor is damaged or disconnected. Such faults can cause hazardous conditions during EV charging.
- PEN Faults: A specific instance of a PME fault where the PEN conductor becomes partially compromised. This can lead to unsafe voltage levels on the earth conductor, posing risks to users and equipment.
- PEN Loss: A complete failure of the PEN conductor. This condition causes the protective earth conductor (PE) to carry live voltage, electrifying connected devices such as EV chargers.
These terms describe the same critical issue within PME systems, where the integrity of the PEN conductor is compromised. Without proper detection, PME faults can cause:
- Electric Shock Risks: Users may experience electric shock when touching electrified EV chargers or vehicles.
- Equipment Damage: Voltage irregularities can harm connected devices and appliances.
- Non-Compliance: Systems without fault detection may fail to meet safety regulations.
The WMTP36-R40CSP ensures safety by detecting and isolating PME faults, including PEN faults and PEN loss, to prevent hazardous situations.
Key Features of 3-Phase PME / PEN Fault Detection Consumer Unit for 3 x 3 Phase EV Charges
- Automatic Monitoring: Continuously checks the 400V supply voltage across all three phases, ensuring stable operation.
- PME Fault Detection: Integrated 5-pole circuit breaker disconnects all phases and earth upon detecting a PME fault.
- Automatic Reset for Under-Voltage: Restores power automatically when voltage levels return to normal.
- Manual Reset for Over-Voltage: Requires pressing the RED “RESET” button after isolation due to over-voltage for added safety.
- No Earth Rod Needed: Eliminates the need for an earth rod, simplifying installation and reducing costs.
- Type 2 Surge Protection: Shields systems from harmful voltage surges, with visual indicators for status: Green (Good) and Red (Replace).
Main Technical Data
- Standard: BS EN 61439-3, BS7671.
- Number of Modules: 36.
- Rated Voltage: 400V.
- Operation Voltage Range: 207-253V AC (4 seconds per phase).
- Main Switch Rated Current: 100A.
- RCBO Rated Current: 40A (Curve C).
- Frequency: 50Hz.
- Cable Entry: Multiple knockouts for flexibility.
- Terminal Type: Cage clamp for secure and reliable connections.
- IP Rating: IP40, suitable for indoor installations.
- Surge Protection: Type 2 SPD with visual indication.
- Device Mounting: 35mm DIN rail.
- Ambient Temperature: -25°C to +55°C.
Applications
- Residential: Protects high-capacity EV chargers, such as Tesla, in PME-based systems by addressing PME faults, PEN faults, and PEN loss.
- Commercial: Ideal for office parking lots and retail EV charging hubs requiring robust fault detection and surge protection.
- Industrial: Essential for high-demand facilities supporting 3 x 3 phase EV chargers.
- Multi-Charger Locations: Specifically designed for properties hosting multiple 3-phase EV chargers, offering reliable safety and fault isolation.
Why This Unit is Essential
The WMTP36-R40CSP 3-Phase PME / PEN Fault Detection Consumer Unit for 3 x 3 Phase EV Charges ensures compliance and safety in demanding EV charging systems. By addressing PME faults, including PEN faults and PEN loss, it mitigates electric shock risks, equipment damage, and non-compliance issues. Its integrated surge protection and overcurrent protection further enhance system reliability, making it an indispensable choice for modern EV installations.
Safety and Compliance
- Qualified Installation Required: Must be installed by a qualified electrician in compliance with IET wiring regulations BS7671.
- Safe Installation Practices: Always disconnect the supply before installation or maintenance. Loose connections can lead to overheating or fires, so ensure proper torque for all terminals.
- Compliant Design: Built to meet BS EN 61439-3 and BS7671 standards for electrical safety and reliability.
Why Buy From Electrical4Less?
Electrical4Less provides trusted solutions for advanced EV charging setups:
- Comprehensive Product Range: Tailored to meet the demands of EV charging safety and compliance.
- Expert Guidance: Professional support to help you choose the right products.
- Competitive Pricing: High-quality products at excellent value.
Explore our range of PME Fault Detection Units and read more in our dedicated posts about EV charging safety. Trust Electrical4Less for reliable and innovative electrical products.
WARNING: This product must be installed by a qualified electrician
