View Larger Image How to Program a CR30 Configurable Safety Relay By Werner Marketing|2019-05-28T13:16:03-05:00May 28th, 2019|Featured Products|0 Comments Watch our step-by-step demonstration on how to program the Rockwell Automation Guardmaster CR30 Safety Relay. If you’d like to learn more, contact Amanda Patteson, Product Specialist with Werner Electric Supply. Please follow and like us: Leave A Comment Cancel replyComment Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email.