• 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.FAST-ACTING, TWO-POSITION ACTUATOR. SPRING RETURN CCW. 40LB-IN. 95 DEG. STROKE. 35 SEC. SR TIMING. 2-POS. 24V 50/60HZ. 16 INCH LEADS. (FOR HVAC APPLICATIONS)| Timing, Maximum Driving @ 60 Hz (sec) | 25 sec |
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| Overview | The ML8135 Fast-Acting, Two-Position Actuators are spring return direct coupled actuators (DCA) with an integral junction box for on/off damper control. |
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| Torque/Force (lb-in., lbf) | 40 lb-in. |
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| Torque/Force (Nm, N) | 4.5 Nm |
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| Electrical Connection Length (in.) | 16 in. |
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| Electrical Connection Length (m) | 406 mm |
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| Supply Voltage | 24 Vac +20%, -10% |
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| Fail Safe Mode | Spring Return |
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| Number of Internal Auxiliary Switch | 0 |
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| Ingress Protection Rating | IP54 |
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| Shaft Adapter Type | Aluminum Hub, four set screws |
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| Spring Return Torque/Force (lb-in., lbf) | 40 lb-in. |
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| Spring Return Torque/Force (Nm, N) | 4.5 Nm |
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| Maximum Stall Torque/Force (lb-in., lbf) | 150 lb-in. |
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| Maximum Stall Torque/Force (Nm, N) | 17 Nm |
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| Rotational Stroke | 95 ±3 degrees |
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| Spring Return Direction | CCW |
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| Timing, Maximum Spring Return (sec) | 15 sec |
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| Timing, Nominal Driving @ 60 Hz (sec) | 20 sec |
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| Compatible Damper Shafts (in.) | 3/8 to 1/2 in. square or round |
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| Compatible Damper Shafts (mm) | 10 to 13 mm square/round |
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| Materials | Aluminum housing |
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| External Auxiliary Switches Available | Yes, 32003532-005 |
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| Power Consumption (Driving) | 18 VA |
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| Power Consumption (Holding) | 8.5 VA |
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| Dimensions (in.) | 7.5 in high x 5.13 in wide x 3.32 in deep |
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| Electrical Connections | Two color-coded leads |
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| Temperature Range, Ambient (F) | -40 F to +130 F |
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| Dimensions (mm) | 192 mm high x 129 mm wide x 84 mm deep |
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| Temperature Range, Ambient (C) | -18 C to +55 C |
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| Temperature Range, Storage (F) | -40 F to +140 F |
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| Temperature Range, Storage (C) | -18 C to +60 C |
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| Maximum Noise Rating, Driving (dB(A) @ 1m) | 65 |
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| Maximum Noise Rating, Holding (dB(A) @ 1m) | 20 (no audible noise) |
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| Environmental Rating | NEMA1 |
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| Approvals, Canadian Underwriters Laboratories | cUL C22.2 No. 24-93 |
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| Approvals, CE | 89/336/ECC, 73/23/EEC |
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| Operating Humidity Range (% RH) | 5 to 95% RH, non-condensing |
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| Approvals, Underwriters Laboratories Inc | UL873, Plenum Rated |
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| Comments | Integral junction box with three 7/8 in. conduit openings (fittings not included) |
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Product Family
Cross Reference
| Honeywell, Inc. | ML8135A1003 |
| Control Signal | On/Off |
| Power | 24 |
| Torque (in-lb) | 100 |
| Timing (Seconds) | 15 |
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| Belimo Aircontrols (USA), Inc. | FSNF24 US |
| Belimo Control Signal | On/Off |
| Belimo Power (24V actuators are AC/DC) | 24 |
| Belimo Torque | 133 |
| Belimo Timing | 15 |
| Return Type | Spring Return |
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| Above replacements may require additional mounting accessories. Manufacturer Suggested Replacement |
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All orders are shipped same-day if the order is received by 1:00 PM Central Time. We ship worldwide.
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