About the Honeywell MS4120F1006/U Honeywell Fast-Acting, Actuator
Honeywell MS4120F1006/U Honeywell Fast-Acting, Actuator. Honeywell MS4209F is a 80 lb-in, spring return, Direct-Coupled, 120 Vac, CW Actuator that accepts Two-Position SPST controls with an integral junction box and on/off signal from a SPST controller. Reliably operates" smoke control systems requiring UL555S ratings up to 350F.