Crabtree 70D/50 Polestar Compact 50A D Curve 16kA SP MCB

The Crabtree 70D/50 Polestar Compact Miniature Circuit Breaker is a heavy-duty 50A single pole MCB engineered for circuits with very high inrush currents. With a D curve trip characteristic and a high 16kA breaking capacity, it delivers dependable circuit protection in demanding commercial and industrial environments.

Key Features

• 50A rated current with D curve trip characteristic (10–20 In)
• High breaking capacity of 16kA to BS EN 60898-1
• 15kA rating to BS EN 60947-2
• Single pole MCB – 1 module width
• Energy limiting Class 3 performance

Applications

Ideal for protecting circuits supplying motors, transformers, compressors, UPS systems, and industrial machinery where high inrush currents are expected.

Standards & Compliance

Manufactured to comply with BS EN 60898-1 and BS EN 60947-2, ensuring reliable operation, safety, and full regulatory compliance.

Documentation

Download the manufacturer’s data sheet