Honeywell, Inc. ML4125D1005 ML4125; ML4135; ML8125; ML8135 HVAC Fast Acting, Two-Position Actuators

SKU: ML4125D1005
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• Integral spring return.
• -40 C to 130 F (-40 C to 54 C) operating temperature range.
• No audible noise during holding.
• Electronic circuitry provides efficient operation while eliminating the need for limit switches.
• Ninety-five degree angle of rotation.
• Die-cast aluminum housing. Housing design allows flush mounting to damper.
• Integral junction box with three conduit openings eliminates need for separate wiring box.
• Direct mounting to 3/8 or 1/2 in. round or square shaft.
• Not intended for smoke control systems.100 lb-in HVAC Fast-Acting, Two-Position Actuator, CCW

Timing, Maximum Driving @ 60 Hz (sec)40 sec
OverviewThe ML4125 Fast-Acting, Two-Position Actuators are spring return direct coupled actuators (DCA) with an integral junction box for on/off damper control.
Actuator TypeDamper
Application TypeHVAC
Torque/Force (lb-in., lbf)100 lb-in.
Torque/Force (Nm, N)11.3 Nm
Electrical Connection Length (in.)16 in.
Electrical Connection Length (m)406 mm
Supply Voltage230 Vac ±10%
Fail Safe ModeSpring Return
Number of Internal Auxiliary Switch0
Control SignalTwo position
List Price479.53
Ingress Protection RatingIP54
Shaft Adapter TypeAluminum Hub, two set screws
Spring Return Torque/Force (lb-in., lbf)100 lb-in.
Spring Return Torque/Force (Nm, N)11.3 Nm
Maximum Stall Torque/Force (lb-in., lbf)240 lb-in.
Maximum Stall Torque/Force (Nm, N)27 Nm
Rotational Stroke95 ±3 degrees
Spring Return DirectionCW
Timing, Maximum Spring Return (sec)25 sec
Timing, Nominal Driving @ 60 Hz (sec)25 sec
Compatible Damper Shafts (in.)3/8 to 1/2 in. square or round
Frequency60 Hz
Compatible Damper Shafts (mm)10 to 13 mm square/round
MaterialsAluminum housing
External Auxiliary Switches AvailableYes, 32003532-005
Power Consumption (Driving)0.12A, 18.6W
Power Consumption (Holding)0.10A, 7W
MountingDirect Coupled
Dimensions (in.)7.5 in high x 5.13 in wide x 3.32 in deep
Electrical ConnectionsTwo color-coded leads
Temperature Range, Ambient (F)-40 F to +130 F
Dimensions (mm)192 mm high x 129 mm wide x 84 mm deep
Temperature Range, Ambient (C)-18 C to +55 C
Temperature Range, Storage (F)-40 F to +140 F
Temperature Range, Storage (C)-18 C to +60 C
Maximum Noise Rating, Driving (dB(A) @ 1m)65
Maximum Noise Rating, Holding (dB(A) @ 1m)20 (no audible noise)
Environmental RatingNEMA1
Approvals, Canadian Underwriters LaboratoriescUL C22.2 No. 24-93
Weight (lb)6 lb
Approvals, CE89/336/ECC, 73/23/EEC
Weight (kg)2.72 kg
Operating Humidity Range (% RH)5 to 95% RH, non-condensing
Approvals, C-TickN314
Approvals, Underwriters Laboratories IncUL873, Plenum Rated
IncludesMounting bracket
CommentsIntegral junction box with three 7/8 in. conduit openings (fittings not included)

Product Family

Model NumberDecriptionManufacturerPriceAvail. Qty 
ML4125A1008 100 lb-in HVAC Fast-Acting, Two-Position Actuator, CW Honeywell, Inc. $240.11 2    Add To Cart
ML4125B1007 100 lb-in HVAC Fast-Acting, Two-Position Actuator, Honeywell, Inc. Call for Pricing 0    View More Info
ML4125C1006 ML4125; ML4135; ML8125; ML8135 HVAC Fast Acting, Two-Position Actuators Honeywell, Inc. Call for Pricing 0    View More Info
ML4125D1005 ML4125; ML4135; ML8125; ML8135 HVAC Fast Acting, Two-Position Actuators Honeywell, Inc. Call for Pricing 0    View More Info
ML4135A1007 40 lb-in HVAC Fast-Acting, Two-Position Actuator, CW Honeywell, Inc. Call for Pricing 0    View More Info
ML4135B1006 40 lb-in HVAC Fast-Acting, Two-Position Actuator, CCW Honeywell, Inc. Call for Pricing 0    View More Info
ML8125A1003 ML4125; ML4135; ML8125; ML8135 HVAC Fast Acting, Two-Position Actuators Honeywell, Inc. Call for Pricing 0    View More Info
ML8125A1004 100 lb-in HVAC Fast-Acting, Two-Position Actuator, CW Honeywell, Inc. Call for Pricing 0    View More Info
ML8125B1003 100 lb-in HVAC Fast-Acting, Two-Position Actuator, CCW Honeywell, Inc. Call for Pricing 0    View More Info
ML8135B1002 40 lb-in HVAC Fast-Acting, Two-Position Actuator, CCW Honeywell, Inc. Call for Pricing 0    View More Info

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Cross Reference

Honeywell, Inc.ML4125D1005
Control SignalOn/Off
Power230
Torque (in-lb)100
Timing (Seconds)25
Replacement
Belimo Aircontrols (USA), Inc.FSAF230 US
Belimo Control SignalOn/Off
Belimo Power (24V actuators are AC/DC)230
Belimo Torque133
Belimo Timing20
Return TypeSpring Return
Above replacements may require additional mounting accessories. Manufacturer Suggested Replacement

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