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

The Crabtree 73D/63 Polestar Compact Miniature Circuit Breaker is a heavy-duty 63A triple pole MCB engineered to provide reliable protection for high-load three-phase electrical circuits subject to high inrush currents. With a D curve trip characteristic and a powerful 16kA breaking capacity, it is ideal for demanding industrial and commercial applications.

Key Features

• 63A rated current
• D curve trip characteristic (10–20 In)
• 16kA breaking capacity to BS EN 60898-1
• 15kA rating to BS EN 60947-2
• Triple pole MCB for three-phase circuit protection
• 3 module width design
• Energy limiting Class 3 performance

Applications

Ideal for industrial and commercial three-phase installations including main distribution boards, motor control centres, large transformers, compressors, and heavy machinery circuits where high inrush currents are expected.

Standards & Compliance

Manufactured in accordance with BS EN 60898-1 and BS EN 60947-2, ensuring compliance with current UK electrical safety standards.

Documentation

Download the manufacturer’s data sheet