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