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Description
3 Phase PME Fault Detection Unit for 2 EV Chargers
WCED WMTP28-R40CSP
The WMTP28-R40CSP is a high-performance 3-phase EV distribution board, designed to ensure safety and compliance in EV charging systems. It actively monitors for PME (Protective Multiple Earthing) faults—commonly referred to as PEN faults or PEN loss—and disconnects all phases and earth if a fault is detected.
These terms all describe the same critical issue: a failure in the PEN conductor that can lead to hazardous conditions during EV charging.
Understanding PME Faults, PEN Faults, and PEN Loss
PME faults, PEN faults, and PEN loss all refer to a problem within PME systems where the combined Protective Earth and Neutral (PEN) conductor becomes compromised. This can occur due to physical damage, corrosion, or wear and tear. When this fault happens, the following risks emerge:
- Electrification: The Protective Earth (PE) conductor may carry live voltage, potentially electrifying the EV or other connected equipment.
- Electric Shock: Users could experience electric shocks when touching the EV or connected devices.
- Equipment Damage: Voltage irregularities can damage chargers and other appliances.
Without proper fault detection, PME faults can cause significant safety hazards. The WMTP28-R40CSP actively monitors for these faults and disconnects the system when they are detected, preventing risks to users and equipment.
Key Features of 3 Phase PME / PEN Fault Detection Unit for 2 x 3 Phase Car Chargers
- Automatic Monitoring: Continuously checks the 400V supply voltage across all phases, ensuring stable and safe operation.
- PME Fault Detection: Detects PME faults (PEN faults or PEN loss) and disconnects all phases and earth to mitigate safety risks.
- Automatic Reset for Under-Voltage: Restores power automatically when normal voltage levels return.
- Manual Reset for Over-Voltage: Requires pressing the RED “RESET” button on the WP9 for added safety after isolation due to over-voltage conditions.
- No Earth Rod Needed: Simplifies installation by eliminating the requirement for an earth rod, reducing costs and complexity.
- Type 2 Surge Protection: Protects connected systems from voltage surges, with visual indicators to show status: Green (Good) and Red (Replace).
Main Technical Data
- Standard: BS EN 61439-3, BS7671.
- Number of Modules: 28.
- Rated Voltage: 400V.
- 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 flexible installation.
- Terminal Type: Cage clamp for secure connections.
- IP Rating: IP40, suitable for indoor installations.
- Surge Protection: Type 2 SPD with visual status indicators.
- Device Mounting: 35mm DIN rail.
- Ambient Temperature: -25°C to +55°C.
Applications
- Residential: Protects Tesla and other 3-phase EV chargers in PME-based systems, addressing PME faults (PEN faults or PEN loss).
- Commercial: Enhances safety for EV charging hubs in office buildings, retail centers, and parking lots.
- Industrial: Provides robust safety for high-demand EV charging facilities requiring advanced monitoring and compliance.
- Multi-Charger Locations: Supports properties with 2 x 3-phase EV chargers, offering comprehensive fault detection and surge protection.
Why This Unit is Essential
The 3 Phase PME / PEN Fault Detection Unit for 2 x 3 Phase Car Chargers is crucial for ensuring the safety of 3-phase EV charging systems. Its ability to detect PME faults, including PEN faults or PEN loss, and its integrated surge and overcurrent protection, make it an indispensable component for secure and compliant installations.
By eliminating the need for an earth rod, it also simplifies installation, making it a cost-effective solution.
Why Buy From Electrical4Less?
Electrical4Less provides trusted, innovative solutions for modern EV charging systems:
- Extensive Product Range: Tailored to meet the needs of EV charging safety and compliance.
- Expert Support: Access professional guidance to select the right products for your setup.
- Competitive Pricing: Premium products at affordable prices without sacrificing quality or reliability.
Explore our range of PME Fault Detection Units and read more in our dedicated posts about EV safety and compliance. Trust Electrical4Less for reliable, innovative electrical products.
WARNING: This product must be installed by a qualified electrician
