MS4120A
Honeywell MS4120 175lb-in. (20Nm) torque, spring return, direct-coupled, line voltage actuator accepts two-position control for use in HVAC systems. It drives quarter-turn, final control elements requiring spring return fail-safe operation.
Two-position, SPST, spring return, 175 lb-in., 20 Nm, direct-coupled actuator
Two-position, SPST, spring return, 175 lb-in., 20 Nm, direct-coupled actuator
Overview
Honeywell MS4120 175lb-in. (20Nm) torque, spring return, direct-coupled, line voltage actuator accepts two-position control for use in HVAC systems. It drives quarter-turn, final control elements requiring spring return fail-safe operation.
Features
- Brushless DC submotor with electronic stall protection for floating/modulating models; brush DC submotor with electronic stall protection for two-position models
- Self-centering shaft coupling for various shaft sizes
- For use with two-position, SPST, line- (Series 40) or low- (Series 80) voltage controls
- For use with floating or switched SPDT (Series 60) controls; use with proportional current or voltage (Series 70) controls
- For use with proportional current or voltage (Series 70) controls; available with adjustable zero and span
- Available with combined floating and modulating control in a single device and with line-voltage internal end switches
- Access cover facilitates connectivity
- Field selectable spring return direction and shaft position indicator and scale
- UL listed (cUL), CE compliant and plenum rated per UL873
Product Specifications
- Application
- HVAC
- Dimensions (in.)
- 9.72 in high x 3.94 in wide x 2.95 in deep
- Dimensions (mm)
- 247 mm high x 100 mm wide x 75 mm deep
- Includes
- Mounting bracket, self-centering shaft adapter, 3mm crank
- Weight (lb)
- 6 lb
- Weight (kg)
- 2.72 kg
- Materials
- Aluminum housing, Plenum rated plastic access cover
- Comments
- Integral 1/2 in. NPSM conduit connection.
- Mounting
- Direct Coupled
- Frequency
- 50 Hz; 60 Hz
- Approvals, Underwriters Laboratories Inc.
- UL873, Plenum Rated
- Electrical Connections
- Enclosed screw terminal strip (22 to 14 AWG)
- Operating Humidity Range (% RH)
- 5 to 95% RH, non-condensing
- Supply Voltage
- 100 to 250 Vac
- Power Consumption
- Driving-- 60 VA, Holding-- 13 VA
- Shipping and Storage Temperature Range (F)
- -40 F to +158 F
- Shipping and Storage Temperature Range (C)
- -40 C to +70 C
- Approvals, CE
- 89/336/ECC, 73/23/EEC
- Approvals, Canadian Underwriters Laboratories Inc.
- cUL C22.2 No. 24-93
- Ambient Temperature Range (F)
- -40 F to +140 F
- Ambient Temperature Range (C)
- -40 C to +60 C
- Approvals, C-Tick
- N314
- Environmental, Electrical or Ingress Protection Rating
- NEMA 2
- Internal Auxiliary Switch
- 0
- Maximum Noise Rating
- Driving (dB(A) @ 1m)-- 40; Holding (dB(A) @ 1m)-- 20 (no audible noise)
- Stroke
- 95 ±3 degrees
- Shaft Dimensions (in.)
- 3/8 to 1.06 in. round or 3/8 to 11/16 in. square
- Actuator Type
- Damper; Valve
- Control Signal
- Two position; SPST
- Fail Safe Mode
- Spring Return
- Torque Rating (lb-in.)
- 175 lb-in.
- Torque Rating (Nm)
- 20 Nm
- Spring Return Torque/Force (lb-in., lbf)
- 175 lb-in.
- Spring Return Torque/Force (Nm, N)
- 20 Nm
- Additional Torque Ratings (lb-in.)
- Maximum Stall-- 300 lb-in.
- Additional Torque Ratings (Nm)
- Maximum Stall-- 34 Nm
- External Auxiliary Switches Available
- Yes, SW2-US
- Rotational Stroke Adjustment
- Mechanically limited 5 degree increments
- Timing, Nominal
- Driving @ 60 Hz-- 45 sec
- Spring Return Timing
- Maximum-- 20 sec
- Shaft Adapter Type
- Self-centering clamping
- Manual operation
- Manual crank
- Shaft Dimensions (mm)
- 10 to 27 mm round or 10 to 18 mm square
- Spring Return Direction
- By orientation
