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ML4105, ML4115, ML8105, ML8115 FAST-ACTING, TWO-POSITION ACTUATORS

63-2540—9

2

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the 

TRADELINE® Catalog or price sheets for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or 

phone:

1.

Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).

2.

Honeywell Customer Care

1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386

In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.

International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, 

Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

SPECIFICATIONS

Models: 

See Table 1.

Dimensions: 

See Fig. 1.

Minimum Damper Shaft Length: 

 1-3/4 in. (45 mm).

Device Weight: 

5 lb (2.3 kg).

Stroke: 

95° ± 3°, mechanically limited.

Electrical Ratings: 

See Table 1.

Electrical Connections:

ML4105A,B, ML4115A,B, ML8105, ML8115: Two color coded 

16 in. leads; includes ground screw.

ML4105C1008, ML4105D1007: Terminal block and ground 

screw with option for connecting thermal switch.

ML4105C1016, ML4105D1015, ML4115C,D: 1m appliance 

cable.

Three 7/8 in. holes for conduit connections (fittings not 

included).

Mounting: 

3/8 to 1/2 in. square or round damper shafts. 

Actuator can be mounted with shaft in any position. Secure 

hub to shaft with:

ML4105A,B, ML8105: Four 1/4-28 UNF set screws. Use 

1/8 in. Allen wrench to tighten set screws.

ML4105C,D: Four 3 mm set screws. Use 3 mm Allen 

wrench to tighten set screws.

ML4115, ML8115: Two 1/4-28 UNF set screws. Use 1/8 in. 

Allen wrench to tighten set screws.

IMPORTANT

Honeywell does not recommend using linkages with 

these actuators because side-loading of the output 

hub reduces actuator life.

Temperature Ratings:

Ambient: 0°F to 130°F (-18°C to 55°C).

Shipping and Storage: -40°F to 140°F (-40°C to 60°C).

IMPORTANT

The actuator is designed to meet UL555S standards 

at 350°F (176°C). The actuator must be tested with 

the damper to achieve this rating.

Humidity Ratings: 

5% to 95% RH noncondensing.

Noise Rating (Maximum):

Driving Open: 65 dBA at 1m.

Holding: 20 dBA at 1m (no audible noise).

Controller Type:

ML4105A,B, ML4115A,B: Line voltage (120 Vac), 

two-position, spst (Series 40).

ML4105C,D, ML4115C,D: Line voltage (230 Vac), 

two-position, spst (Series 40).

ML8105, ML8115: Low voltage (24 Vac), 

two-position, spst (Series 80).

Table 1. ML4105, ML4115, ML8105, ML8115 DCA Models.

Torque Rating (at rated voltage):

Typical Holding: 100 lb-in. (11.3 N•m).

Spring Return: 

ML4105, ML8105: 40 lb-in. (4.5 N•m).

ML4115, ML8115: 30 lb-in. (3.4 N•m).

Stall Maximum: 

ML4105, ML8105: 240 lb-in. (27 N•m).

ML4115, ML8115: 150 lb-in. (17 N•m).

350°F Driving:

ML4105, ML8105: 50 lb-in. (5.7 N•m).

ML4115, ML8115: 30 lb-in. (3.4 N•m).

Model

Spring 

Return 

Direction

Power Consumption

Torque

 in lb-in. 

(N•m)

Voltage

 Input 

in Vac

Running

Holding

ML4105A ccw

0.20A, 18W 0.11A, 9W

50 (5.7) 120 +10%, 

-15%, 60 Hz

ML4105B cw
ML4105C ccw

0.12A, 22W 0.08A, 10W 50 (5.7) 230 ±10%, 

50/60 Hz

ML4105D cw
ML4115A ccw

0.18A, 18W 0.11A, 9W

30 (3.4) 120 ±10%, 

60 Hz

ML4115B cw
ML4115C ccw

0.13A, 18W 0.10A, 11W 30 (3.4) 230 ±10%, 

50/60 Hz

ML4115D cw
ML8105A ccw

20 VA

8 VA

50 (5.7) 24 

+20%, -10%, 

50/60 Hz

ML8105B cw
ML8115A ccw

16 VA

8 VA

30 (3.4)

ML8115B cw

Summary of Contents for ML4105

Page 1: ...al spring return ensures level of return torque Fifteen second spring return timing No special cycling required during long term holding See Operation section No audible noise during holding Patent pending design eliminates need for limit switches to reduce power consumption Models available for 24 120 and 230 Vac Ninety five degree angle of rotation Actuator holds rated torque at reduced power le...

Page 2: ...28 UNF set screws Use 1 8 in Allen wrench to tighten set screws ML4105C D Four 3 mm set screws Use 3 mm Allen wrench to tighten set screws ML4115 ML8115 Two 1 4 28 UNF set screws Use 1 8 in Allen wrench to tighten set screws IMPORTANT Honeywell does not recommend using linkages with these actuators because side loading of the output hub reduces actuator life Temperature Ratings Ambient 0 F to 130 ...

Page 3: ...ication NFPA recommends periodic examination of each fire smoke damper semi annually or annually to ensure proper performance Design Life at Rated Voltage 60 000 full stroke cycles Approvals See Table 2 Environmental Protection Ratings See Table 3 Accessories 201391 Shaft Adapter for 3 8 in shafts not supplied with actuator 205649 Mounting Bracket not supplied with actuator Table 2 Approvals Table...

Page 4: ... the bottom that with a 205649 Mounting Bracket secure it flush to a damper box see Fig 2 When mounted correctly these slots allow the actuator to float without rotating relative to the damper shaft CAUTION Equipment Damage Hazard Tightly securing actuator to damper housing can damage actuator Mount actuator to allow it to float along its vertical axis NOTE ML4105 ML4115 ML8105 and ML8115 Actuator...

Page 5: ... lb in maximum 60 lb in torque Use 1 8 in or 3 mm Allen wrench see Specifications for details to tighten set screws Wiring See Fig 4 through 8 for typical wiring diagrams WARNING Electrical Power Hazard Line voltage can cause death or serious injury and short equipment circuitry Disconnect power supply before installation CAUTION Electrical Shock or Equipment Damage Hazard Low voltage can shock in...

Page 6: ... building IMPORTANT If the indicator turns black replace the actuator NOTE The actuator is designed to operate for 30 minutes during a one time excursion to 350 F 176 C CHECKOUT ML4105A B and ML4115A B 120 Vac model 1 Verify that the indicator has not turned black see Temperature Indicator section 2 Check damper position 3 Connect 120 Vac to the black and white leadwires to drive the damper to the...

Page 7: ... DK Installasjonsinstruks N Installationsinstrukioner SF Asennusohje S Installations Instrukioner E Instrucciones de montage M11874 ASSEMBLY EINBAU MONTAGE MONTAGGIO MONTAGE MONTERE MONTERING ASENTAMINEN MONTERA MONTAJE D F I NL DK N FIN S E 24 VAC 120 VAC M11875 b a M11876 a b c d M12030 a b M11881 b a M11882 HEX 4mm MIN 45 lb in 5 1 Nm MAX 60lb in 6 8 Nm a b c A A1 A4 A3 A5 A2 A6 ...

Page 8: ...Drive North 35 Dynamic Drive Honeywell Building 1140 Brussels 480 Sawgrass Corporate Parkway Golden Valley MN 55422 Scarborough Ontario 17 Changi Business Park Central 1 Belgium Suite 200 M1V 4Z9 Singapore 486073 Sunrise FL 33325 National Fire Codes is a registered trademark of the National Fire Protection Association NFPA 24 VAC 120 VAC M11884 DISASSEMBLY AUSBAU DÉMONTAGE SMONTAGGIO DEMONTAGE AFM...

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