Honeywell MS4620F1203 Fire Damper Actuator 230V 20Nm Spring Return

Honeywell MS4620F1203 Spring Return Actuator Fire-Smoke 230V 2-Position Fast-acting, two-position actuator with 175 lb-in., 20 Nm spring return and 230 Vac actuator accepts two-position control with an integral junction box and accepts an on/off signal from a single-pole, single-throw controller. Reliability operates in smoke control systems requiring UL555S ratings up to 350F.

Features: 175 lb-in. (20 Nm) minimum driving torque at 350F (176C) Integral stainless steel spring return ensures return torque level Reversible mounting allows clockwise (cw) or counterclockwise (ccw) spring rotation Fifteen-second spring return timing No special cycing required and no audible noise during long-term holding Models available with integral high temperature (350 F) SPST position-indicating switches (<7 degrees, >85 degrees) Ninety-five degree angle of rotation for tight damper closure Actuator holds rated torque at reduced power level and die-case aluminum housing design allows flush mounting to damper