Crabtree 73B/20 Polestar Compact 20A B Curve 16kA TP MCB

The Crabtree 73B/20 Polestar Compact Miniature Circuit Breaker is a dependable 20A triple pole MCB designed to protect three-phase electrical circuits from overloads and short circuits. With a B curve trip characteristic and a high 16kA breaking capacity, it delivers reliable and balanced protection across all three phases.

Key Features

• 20A 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, control systems, and small power circuits where lower inrush currents are present, making it suitable for commercial and industrial electrical installations.

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