Honeywell MS4609F1210 Two Position Direct Coupled Actuator

The MS4609F1210 is a two-position direct coupled actuator manufactured by Honeywell, designed to drive dampers and valves in HVAC and industrial control systems. Operating on a 230V AC power supply, this actuator delivers an 80 in-lb (9 Nm) torque output and incorporates a spring return mechanism to drive the damper to a safe position upon power loss.

Torque Output and Motor Operation

Driven by a brushed DC motor, the unit provides a consistent 80 in-lb (9 Nm) torque rating for reliable positioning. The rotation range is mechanically limited to 95 degrees plus or minus 3 degrees, and the assembly supports reversible clockwise or counterclockwise mounting configurations depending on damper linkage requirements.

Spring Return and Auxiliary Switch Integration

The integrated spring return mechanism closes the connected damper within 15 to 20 seconds during power interruption. Additionally, the unit is equipped with two single-pole single-throw (SPST) auxiliary switches rated for 5A resistive and 3A inductive loads at 250V AC for external position indication or interlocking.

Electrical and Environmental Specifications

Electrical connections are made via 32-inch 18 AWG wiring leads housed with 7/8-inch knockout holes. The actuator operates within an ambient temperature range of 0 deg F to 130 deg F (-18 deg C to 55 deg C) and withstands storage temperatures from -40 deg F to 140 deg F (-40 deg C to 60 deg C).

Frequently Asked Questions

Q: What is the torque output and power supply requirement for the MS4609F1210?

A: The actuator delivers 80 in-lb (9 Nm) of torque and operates on a 230V AC power supply.

Q: How quickly does the spring return mechanism operate during a power loss?

A: The spring return closes the damper within 15 to 20 seconds.

Q: What electrical ratings do the built-in auxiliary switches carry?

A: It features two SPST auxiliary switches rated for 5A resistive and 3A inductive at 250V AC.