Cudis B100 100A Single Phase Voltage Optimisation Unit | CPNB100

The Cudis B100 Voltage Optimisation Unit (CPNB100) is a 100A single-phase voltage optimiser designed to reduce incoming supply voltage to a safer, more efficient operating level. By lowering voltage by approximately 6–14%, the unit helps minimise over-voltage stress, reduce energy waste, and extend the service life of connected electrical equipment.

Housed in a robust powder-coated mild steel enclosure, the CPNB60 is suitable for commercial and residential installations where incoming supply regularly exceeds optimal operating voltage. It is independently tested and certified by Intertek and built to comply with key UK and EU electrical standards.

With a maximum load of 100A and integrated protective devices, this unit provides a practical, installer-friendly solution for voltage control and equipment protection.

Features

• 100A Single Phase Voltage Optimiser – For whole-circuit voltage reduction
• Voltage Reduction 6–14% – Helps prevent over-voltage faults
• Improves Efficiency – Reduces excess voltage and energy waste
• Equipment Protection – Lowers electrical stress on appliances
• Intertek Certified – Independently tested and approved
• Heavy-Duty Steel Enclosure – Powder-coated for durability
• Integrated Protection – Includes 100A Type B MCB
• Flexible Cable Entry – Multiple 32mm knockout entries
• 5 Year Warranty – Long-term reliability

Electrical Performance

• Phase: Single phase AC
• Nominal Input Voltage: 235–253V AC, 50Hz
• Nominal Output Voltage: 217–234V AC
• Optimisation Ratio: ~92.5% of input voltage
• Voltage Reduction: Typically 6–14%
• Maximum Load: 100A
• Surge Rating: 4kV
• Over Voltage Category: Class III

Construction & Installation

• Enclosure: Mild steel, powder coated
• IP Rating: IP20
• Electrical Class: Class I
• Cable Entry:
• 2 × 32mm (bottom)
• 2 × 32mm (rear)
• Terminal Capacity: Up to 35mm² (Live & Neutral)
• Approx. Weight: 10kg
• Average Operating Temperature: 60–66°C

Protection & Compliance

• MCB Included: 100A, 10kA, Type B (BS EN 60898-1)
• Independently Certified: Intertek tested
• Standards Compliance:
• BS EN 61558-2-13
• BS EN 61558-1 + A1
• BS EN 61439-1
• BS EN 60076-11
• EN 61000-6 series
• Low Voltage Directive 2014/35/EU

Typical Applications

• Commercial premises with high incoming voltage
• Residential properties with persistent over-voltage
• Equipment protection circuits
• Lighting and mixed-load distribution
• Energy optimisation upgrades