EWC Controls ND Series 18X12 ND Rectangular Motorized Damper, 18" x 12" Opening Size, Rectangular, 24 VAC, Slip-In, Side/Bottom Mount (Motor), 1.5 In. Wc. Pressure Rating, Power Open/Power Close, Non-Spring Return, 18 in-lb
EWC Controls ND Series 18X12 ND Rectangular Motorized Damper, 18" x 12" Opening Size, Rectangular, 24 VAC, Slip-In, Side/Bottom Mount (Motor), 1.5 In. Wc. Pressure Rating, Power Open/Power Close, Non-Spring Return, 18 in-lb
| Amperage Rating | : | 1.5 A |
| Blade Type | : | Overlapping Parallel |
| Color | : | Silver |
| Dimensions | : | 12" H x 18" 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 |
| Height | : | 22 |
| Length | : | 14 |
| Material Standard | : | UL Listed (Motor Actuator), NEMA 1 (Motor Housing) |
| Material | : | Extruded Aluminum (Frame/Blades), Nylon (Bearings) |
| Model | : | 18X12 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 | : | 18" x 12" |
| Phase | : | 1 |
| Pressure Rating | : | 1.5 in. wc. |
| Rated Velocity | : | 1,500 fpm |
| Series | : | ND Series |
| Shape | : | Rectangular |
| Size | : | 18" x 12" |
| Temperature Rating | : | 185 °F (Maximum, Operating) |
| Timing Range | : | 40 seconds |
| Torque Rating | : | 18 in-lb |
| Voltage Rating | : | 24 VAC |
| Width | : | 7 |
The ND Damper is constructed using heavy-duty 0.80" extruded aluminum with nylon bearings for quiet operation. Its overlapping parallel blade design ensures low leakage and is designed to operate at static pressures up to 1.5" W.C. and duct velocities up to 1500 FPM.The UL Listed motor actuator is a 24 VAC, 3-wire power open/power close type, rated at 18 in-lbs of torque, which is superior to low-torque spring-return motors. The motor actuator housing has a NEMA1 rating. Integrated end-stop adjustment allows setting minimum and maximum damper positions, while bright green and red LEDs indicate the current open or closed status.
EWC Controls Rectangular Motorized Damper, Model: ND Series, 18" x 12" Opening Size, Rectangular, 24 VAC, 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, 12" H x 18" 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
- Built with a heavy-duty 0.80" extruded aluminum frame and blades for durability.
- Nylon bearings provide smooth and quiet damper operation.
- Overlapping parallel blades ensure low air leakage when closed.
- Reliable performance in systems with static pressures up to 1.5" W.C. and air velocities up to 1500 FPM.
- Features a UL Listed, 24 VAC, 3-wire power open/power close motor actuator with 18 in-lbs of torque.
- Integrated end stops allow adjustment for minimum ventilation or maximum flow limits.
- Bright LED indicators clearly show whether the damper is open or closed.
