Product Description
DCA 120V S/R 142 LB-IN TORQUEOverview
Honeywell MS4120 175lb-in. (20Nm) torque, spring return, direct-coupled, line voltage actuator accepts two-position control for use in HVAC systems. It drives quarter-turn, final control elements requiring spring return fail-safe operation.
Features
- Brushless DC submotor with electronic stall protection for floating/modulating models; brush DC submotor with electronic stall protection for two-position models
- Self-centering shaft coupling for various shaft sizes
- For use with two-position, SPST, line- (Series 40) or low- (Series 80) voltage controls
- For use with floating or switched SPDT (Series 60) controls; use with proportional current or voltage (Series 70) controls
- For use with proportional current or voltage (Series 70) controls; available with adjustable zero and span
- Available with combined floating and modulating control in a single device and with line-voltage internal end switches
- Access cover facilitates connectivity
- Field selectable spring return direction and shaft position indicator and scale
- UL listed (cUL), CE compliant and plenum rated per UL873
Product Specifications | |
| Application | HVAC |
| Dimensions (in.) | 9.72 in high x 3.94 in wide x 2.95 in deep |
| Dimensions (mm) | 247 mm high x 100 mm wide x 75 mm deep |
| Includes | Mounting bracket, self-centering shaft adapter, 3mm crank |
| Weight (lb) | 6 lb |
| Weight (kg) | 2.72 kg |
| Materials | Aluminum housing, Plenum rated plastic access cover |
| Comments | Integral 1/2 in. NPSM conduit connection. |
| Mounting | Direct Coupled |
| Frequency | 50 Hz; 60 Hz |
| Approvals, Underwriters Laboratories Inc. | UL873, Plenum Rated |
| Electrical Connections | Enclosed screw terminal strip (22 to 14 AWG) |
| Operating Humidity Range (% RH) | 5 to 95% RH, non-condensing |
| Supply Voltage | 100 to 250 Vac |
| Power Consumption | Driving-- 60 VA, Holding-- 13 VA |
| Shipping and Storage Temperature Range (F) | -40 F to +158 F |
| Shipping and Storage Temperature Range (C) | -40 C to +70 C |
| Approvals, CE | 89/336/ECC, 73/23/EEC |
| Approvals, Canadian Underwriters Laboratories Inc. | cUL C22.2 No. 24-93 |
| Ambient Temperature Range (F) | -40 F to +140 F |
| Ambient Temperature Range (C) | -40 C to +60 C |
| Approvals, C-Tick | N314 |
| Environmental, Electrical or Ingress Protection Rating | NEMA 2 |
| Internal Auxiliary Switch | 0 |
| Maximum Noise Rating | Driving (dB(A) @ 1m)-- 40; Holding (dB(A) @ 1m)-- 20 (no audible noise) |
| Stroke | 95 ±3 degrees |
| Shaft Dimensions (in.) | 3/8 to 1.06 in. round or 3/8 to 11/16 in. square |
| Actuator Type | Damper; Valve |
| Control Signal | Two position; SPST |
| Fail Safe Mode | Spring Return |
| Torque Rating (lb-in.) | 175 lb-in. |
| Torque Rating (Nm) | 20 Nm |
| Spring Return Torque/Force (lb-in., lbf) | 175 lb-in. |
| Spring Return Torque/Force (Nm, N) | 20 Nm |
| Additional Torque Ratings (lb-in.) | Maximum Stall-- 300 lb-in. |
| Additional Torque Ratings (Nm) | Maximum Stall-- 34 Nm |
| External Auxiliary Switches Available | Yes, SW2-US |
| Rotational Stroke Adjustment | Mechanically limited 5 degree increments |
| Timing, Nominal | Driving @ 60 Hz-- 45 sec |
| Spring Return Timing | Maximum-- 20 sec |
| Shaft Adapter Type | Self-centering clamping |
| Manual operation | Manual crank |
| Shaft Dimensions (mm) | 10 to 27 mm round or 10 to 18 mm square |
| Spring Return Direction | By orientation |
Product Videos
Custom Field
MPN MS4120A1001
