Sparks’ readers will find the new pocket-sized guide from SAFEhouse – A Guide to Miniature Circuit Breakers – Part 1 – on page three of the May issue. This handy guide explains how MCBs work, the two technologies – thermal magnetic and hydraulic magnetic; the principles of operation; time delay curves; breaking capacity and the applicable standards. 

The SAFEhouse guide can also be downloaded here in PDF format.

Contact Crown

Web Manager: Karen Smith
Email: admin(@)

Phone: +27 11 622 4770
Fax: +27 11 615 6108

Crown House
2 Theunis Street
Cnr Sovereign Street
Bedford Gardens
Bedfordview 2007
P.O. Box 140
Bedfordview 2008