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Honeywell ML4115 Fire and Smoke, Fast-Acting, Two-Position Actuators

Fire and Smoke, Fast-Acting, Two-Position Actuators
ML4115
Spring return direct coupled actuators (DCA) for on/off damper
control with an integral junction box. The actuator accepts an on/
off signal from a single-pole, single-throw (SPST) controller. They
are designed to operate reliably in smoke control systems
requiring Underwriter's Laboratories Inc. UL555S ratings up to
350 F.

Spring return direct coupled actuators (DCA) for on/off damper control with an integral junction box. The actuator accepts an on/off signal from a single-pole, single-throw (SPST) controller. They are designed to operate reliably in smoke control systems requiring Underwriter's Laboratories Inc. UL555S ratings up to 350 F.

• Integral spring return.
• No audible noise during holding.
• Electronic circuitry provides efficient operation while eliminating the need for limit switches.
• Ninety-five degree angle of rotation for tight damper closure.
• Die-cast aluminum housing.
• Housing design allows flush mounting to damper.
• Integral junction box with three conduit openings eliminates need for separate wiring box.
• Mounts to 3/8 or 1/2 in. round or square shaft.
• High-temperature indicator included.

Select a link under the "item" tab below to order.

Cat #IncludesControl SignalSpring Return DirectionMaximum Driving @ 60 HzNominal Driving @ 60 HzMaximum Spring ReturnDrivingHoldingSupply VoltageNumber of Internal Auxiliary Switch
ML4115A1009Ground ScrewTwo position; SPSTCCW25 sec18 sec15 sec0.18A, 18W0.11A, 9W120 Vac ±10%0
ML4115B1008Ground ScrewTwo position; SPSTCW25 sec18 sec15 sec0.18A, 18W0.11A, 9W120 Vac ±10%0
Actuator Type: Damper
Rotational Stroke: 95 ±3 degrees
Fail Safe Mode: Spring Return
Torque: (3.4 Nm) 30 lb-in.
Maximum Stall Torque: 150 lb-in. (17 Nm)
Minimum Driving Torque at 350 F: 30 lb-in. (3.4 Nm)
Spring Return Torque: 30 lb-in. (3.4 Nm)
External Auxiliary Switches Available: Yes, 32003532-005
Electrical Connections: Two color-coded leads
Electrical Connection Length: 16 in. (406 mm)
Environmental Rating: NEMA1
Frequency: 60 Hz
Mounting: Direct Coupled
Maximum Noise Rating, Holding (dBA @ 1m): 20 (no audible noise)
Maximum Noise Rating, Driving (dBA @ 1m): 65
Number of Internal Auxiliary Switch: 0
Compatible Damper Shafts: 3/8 to 1/2 inch square or round (10 to 13 square/round)
Shaft Adapter Type: Aluminum Hub, two set screws
Materials: Aluminum housing
Operating Humidity Range (% RH): 5 to 95% RH, non-condensing
Ambient Temperature Range: 0 F to +130 F (-18 C to +55 C)
Storage Temperature Range: -40 F to 140 F (-40 C to +60 C)
Weight: 6 lb (2.72 kg)
Approvals:
Underwriters Laboratories Inc. UL873, Plenum Rated
Underwriters' Laboratories of Canada: cUL C22.2 No. 24-93
Comments: Integral junction box with three 7/8 in. conduit openings(fittings not included)


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