Honeywell ML4125 HVAC, Fast-Acting, Two-Position Actuators
HVAC, Fast-Acting, Two-Position Actuators
ML4125
The Fast-Acting, Two-Position Actuators are spring return direct coupled actuators (DCA) with an integral junction box for on/off damper control.
• 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.
Select a link under the "item" tab below to order.
| Driving | Maximum Spring Return | Includes | Number of Internal Auxiliary Switch | Cat # | Control Signal | Nominal Driving @ 60 Hz | Supply Voltage | Spring Return Direction | Holding | Maximum Driving @ 60 Hz |
| 0.16A, 15W | 25 sec | Ground Screw | 0 | ML4125A1008 | Two position; SPST | 25 sec | 120 Vac +10%,-15% | CCW | 0.10A, 5W | 40 sec |
| 0.16A, 15W | 25 sec | Ground Screw | 0 | ML4125B1007 | Two position; SPST | 25 sec | 120 Vac +10%,-15% | CW | 0.10A, 5W | 40 sec |
| 0.12A, 18.6W | 25 sec | Mounting bracket | 0 | ML4125C1006 | Two position; SPST | 25 sec | 230 Vac ±10% | CCW | 0.10A, 7W | 40 sec |
| 0.12A, 18.6W | 25 sec | Mounting bracket | 0 | ML4125D1005 | Two position; SPST | 25 sec | 230 Vac ±10% | CW | 0.10A, 7W | 40 sec |
| Actuator Type | Damper; Valve |
| Rotational Stroke | 95 ±3 degrees |
| Fail Safe Mode | Spring Return |
| Torque | (11.3 Nm) 100 lb-in. |
| Maximum Stall Torque | 240 lb-in. (27 Nm) |
| Spring Return Torque | 100 lb-in. (11.3 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 |
| Compatible Damper Shafts | 3/8 to 1/2 inch square or round (10 to 13 square/round) |
| Shaft Adapter Type | Aluminum Hub, four set screws |
| Supply Voltage | 120 Vac +10%, -15% |
| Materials | Aluminum housing |
| Ingress Protection Rating | — |
| Operating Humidity Range (% RH) | 5 to 95% RH, non-condensing |
| Ambient Temperature Range | -40 F to +130 F (-40 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 |
