EWC Controls ND Series 8X20 ND Rectangular Motorized Damper, 8" x 20" Opening Size, Rectangular, 24 VAC, 460 CFM, Slip-In, Side/Bottom Mount (Motor), 1.5 In. Wc. Pressure Rating, Power Open/Power Close, Non-Spring Return
EWC Controls ND Series 8X20 ND Rectangular Motorized Damper, 8" x 20" Opening Size, Rectangular, 24 VAC, 460 CFM, Slip-In, Side/Bottom Mount (Motor), 1.5 In. Wc. Pressure Rating, Power Open/Power Close, Non-Spring Return
| Amperage Rating | : | 1.5 A |
| Blade Type | : | Overlapping Parallel |
| CFM Rating | : | 460 CFM |
| Color | : | Silver |
| Dimensions | : | 20" H x 8" W x 4" D |
| Domestic/Import | : | Domestic |
| Electrical Connection | : | Quick Connecting Terminal Block, 3-Wire |
| Finish | : | Mill Finish (Extruded Aluminum) |
| Frequency Rating | : | 50 Hz, 60 Hz |
| Material Standard | : | UL Listed (Motor Actuator), NEMA 1 (Motor Housing) |
| Material | : | Extruded Aluminum (Frame/Blades), Nylon (Bearings) |
| Model | : | 8X20 ND |
| Motor Specifications | : | 24 VAC, 3-Wire Power Open/Power Close (Floating Function), 18 in-lb Torque, NEMA 1 Housing, UL Listed |
| Motor Type | : | Power Open/Power Close, Non-Spring Return |
| Mounting Type | : | Slip-In, Side/Bottom Mount (Motor) |
| Opening Size | : | 8" x 20" |
| Phase | : | 1 |
| Pressure Rating | : | 1.5 in. wc. |
| Rated Velocity | : | 1,500 fpm |
| Series | : | ND Series |
| Shape | : | Rectangular |
| Size | : | 8" x 20" |
| Temperature Rating | : | 185 °F (Maximum, Operating) |
| Timing Range | : | 40 seconds |
| Torque Rating | : | 18 in-lb |
| Voltage Rating | : | 24 VAC |
The EWC Controls ND Series rectangular motorized damper is designed for easy installation and reliable operation in zoning systems. Constructed with a heavy-duty 0.80" extruded aluminum frame and equipped with nylon bushings, it ensures quiet performance and straightforward setup. The damper features a 24V AC/DC, 3-wire power open/power close motor actuator rated at 18 in-lbs of torque.Integrated features simplify diagnostics and balancing. Bright green and red LEDs provide visual confirmation of the damper's open and closed status, while adjustable end-stops allow setting minimum and maximum positions for airflow control and relief air. The overlapping parallel blade design ensures low leakage and reliable operation in systems up to 1.5" w.c. static pressure and 1500 FPM velocity.
EWC Controls Rectangular Motorized Damper, Model: ND Series, 8" x 20" Opening Size, Rectangular, 24 VAC, 460 CFM, Slip-In, Side/Bottom Mount (Motor), 1.5 In. Wc. Pressure Rating, Power Open/Power Close, Non-Spring Return, 18 in-lb, 40 Seconds Timing Range, 24 VAC, 3-Wire Power Open/Power Close (Floating Function), 18 in-lb Torque, NEMA 1 Housing, UL Listed, 20" H x 8" W x 4" D Dimensions, Quick Connecting Terminal Block, 3-Wire Electrical Connection, Extruded Aluminum (Frame/Blades), Nylon (Bearings), UL Listed (Motor Actuator), NEMA 1 (Motor Housing), Mill Finish (Extruded Aluminum), Silver, Overlapping Parallel, 1,500 FPM, 1.5 A, 185 °F (Maximum, Operating), 50 Hz, 60 Hz, 1 Phase, Domestic
- Constructed with a heavy-duty 0.80†extruded aluminum frame and nylon bearings for quiet operation.
- Features a 24V AC/DC, 3-wire power open/power close motor actuator with 18 in-lb torque.
- Bright green and red LEDs provide visual confirmation of damper open/closed status.
- Integrated, adjustable end-stops allow setting minimum/maximum positions for balancing and relief air.
- Overlapping parallel blade design ensures low leakage operation.
- Reliable performance in systems up to 1.5" w.c. static pressure and 1500 FPM velocity.
- UL Listed motor actuator ensures safety and reliability.
