Belimo verifies the design endurance of all actuators with test equipment. Belimo designs this test equipment for the specific purpose of performing both life cycle and partial cycle testing. Belimo provides the design life and partial cycle data as guidelines to estimate useful product life. The actual life of a Belimo actuator depends on the installed application.
Belimo control actuator cycle life varies by mode but are designed for up to 100,000 full stroke cycles and up to 1,000,000 partial cycles that are typical for modulating control.
Belimo Fire and Smoke actuators are tested for a minimum of 30,000 full cycles at full rated torque load. Given typical 365 operations per year this is over 50 years. Each damper manufacturer has individually performed the UL 555S tests where the damper and actuator are tested together.
Please see the attached Life Cycle Statements for details on specific actuator products.