PROTECTIVE RELAY PANELS
AZZ | BLENKHORN & SAWLE • 100 Grantham Ave. South • St. Catharines, Ontario, L2P 3H2
Phone: 905.684.9251 • Fax: 905.684.9555
©2010 AZZ incorporated. All rights reserved
AZZ | Blenkhorn & Sawle Limited - Protective Relay Panels
Custom manufacturing in our ISO 9001:2000 of protective relay, control and metering
panel systems for utility and industrial applications.
With over 50 years of excellence in relay panel design, construction, fabrication and
testing, BSL offers quality and reliability second to none.
Thorough inspection and testing ensure the product leaves the factory ready to serve
your needs.  Using the latest secondary injection equipment, all relays and meters are
functionally tested prior to shipment. 
 
Applications include:
• Utility substation monitoring and control
• Industrial process
• Power plant control and generation protection
• Wind farm collector substations
• Wind farm interconnect substations