Cudis EV Metal IP44 Consumer Unit with 40A RCBO & SPD | CU/CM04-9-40B

Heavy-Duty Pre-Assembled EV Protection Board – Outdoor Rated

The Cudis CU/CM04-9-40B is a metal-clad IP44 EV consumer unit engineered for reliable protection of electric vehicle charging circuits. Supplied pre-assembled with a 2-pole 40A B Curve RCBO (30mA) and a 2-pole Type 2 SPD, it delivers comprehensive overcurrent, earth leakage, and surge protection in a robust, outdoor-ready enclosure.

Designed to meet 18th Edition (BS 7671) requirements, this unit is ideal for domestic and light commercial EV installations where durability and compliance are critical.

What’s Included

• 2-Pole 40A B Curve RCBO (30mA) – RO2SNF-40B/030A
• 2-Pole Type 2 SPD – T21PN
• 4-Way Metal IP65 Enclosure with clear door
• Integrated Earthing Terminal Bar
• Labels and Instruction Sheet

Features

• Purpose-built for EV circuits
• Metal enclosure for enhanced impact resistance and longevity
• Pre-assembled to reduce installation time and errors
• Surge protection included for transient overvoltage events
• Wide earthing compatibility: TN-C-S, TN-S, TT

Electrical

• Rated Current: 100A
• Overcurrent Protection: 40A B Curve
• Residual Operating Current: 30mA
• Residual Current Type: AC / A
• RCBO: 2-Pole
• SPD: 2-Pole Type 2

Enclosure

• Material: Metal, powder-coated
• IP Rating: IP44
• Door: Clear
• Modules: 4
• Earthing: 1 x terminal bar

Compliance

• BS 7671 (18th Edition)
• BS EN 61439-3

Typical Applications

• Domestic EV charge points
• Outdoor EV installations (garages, driveways)
• Commercial EV circuits requiring metal enclosures