Crabtree 73B/63 Polestar Compact 63A B Curve 16kA TP MCB

The Crabtree 73B/63 Polestar Compact Miniature Circuit Breaker is a high-performance 63A triple pole MCB designed to provide reliable protection for three-phase electrical circuits against overloads and short circuits. Featuring a B curve trip characteristic and a robust 16kA breaking capacity, it ensures consistent and balanced protection across all three phases in commercial and industrial installations.

Key Features

• 63A rated current with B curve trip characteristic (3–5 In)
• High breaking capacity of 16kA to BS EN 60898-1
• 15kA rating to BS EN 60947-2
• Triple pole MCB for three-phase circuit protection
• 3 module width format
• Energy limiting Class 3 performance

Applications

Ideal for three-phase lighting, distribution, and control circuits where lower inrush currents are expected. Suitable for a wide range of commercial and industrial electrical environments requiring dependable circuit protection.

Standards & Compliance

Manufactured in accordance with BS EN 60898-1 and BS EN 60947-2, ensuring safe operation, long-term reliability, and full regulatory compliance.

Documentation

Download the manufacturer’s data sheet