Description
Honeywell Zelix S03 Series Spring Return Direct Coupled Actuator
The Honeywell MS7503A2130 is a feature-rich Zelix S03 Series spring return direct coupled actuator engineered for precise damper and valve control in commercial HVAC and building automation applications. Powered by a 24 VAC/DC supply, this actuator delivers reliable, fail-safe spring return operation, ensuring your system returns to a safe position in the event of a power loss.
Key Features
- Spring return fail-safe operation for reliable system protection
- 24 VAC/DC power supply for broad compatibility
- 27 lb-in torque output for dependable damper and valve actuation
- Multiple control signal inputs: On/Off, SPDT floating, and 0/2-10 Vdc proportional
- 4-20 mA input capability with integrated 500 Ohm resistor for current loop compatibility
- 2-10 Vdc position feedback signal for closed-loop control integration
- 1 internal auxiliary switch for end-of-travel signaling or interlock functions
- 90-second nominal drive time for smooth, controlled actuation
- Direct coupled design for easy shaft mounting without couplers or linkages
Control Signal Options
- On/Off control
- SPDT floating control
- 0/2-10 Vdc proportional control
- 4-20 mA with 500 Ohm resistor (current-to-voltage conversion built in)
Feedback & Auxiliary
- 2-10 Vdc position feedback output for BAS/DDC integration
- 1 internal auxiliary switch for status indication or interlock wiring
Applications
- Commercial HVAC air handling units (AHUs)
- Variable air volume (VAV) systems
- Building automation and DDC control systems
- Damper and valve actuation requiring fail-safe spring return
Specifications
- Brand: Honeywell
- Series: Zelix S03
- SKU / Part Number: MS7503A2130
- Power Supply: 24 VAC/DC
- Torque: 27 lb-in
- Control Signal: On/Off, SPDT Floating, 0/2-10 Vdc, 4-20 mA (with 500 Ohm resistor)
- Position Feedback: 2-10 Vdc
- Auxiliary Switch: 1 internal
- Drive Time: 90 seconds nominal
- Actuator Type: Spring Return, Direct Coupled
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