EWC Controls 28X22 ND-RSD NC Motorized Damper Spring Return - Normally Closed
EWC Controls 28X22 ND-RSD NC Motorized Damper Spring Return - Normally Closed
General specs
- Product code28X22 ND-RSD NC
- ManufacturerEWC Controls
- SKU28X22 ND-RSD NC
Dimensions
- Dimensions24.00in x 7.00in x 32.00in
- Weight13.60lb
EWC Controls 28X22 ND-RSD NC Motorized Damper Spring Return - Normally Closed
General Features:
The ND-RSD is a rectangular parallel blade damper constructed from heavy duty extruded aluminum with nylon bearings for quiet operation.
The Motor Actuator is a 24vac (6watt / 8va) Synchronous motor.
It is typically a Power Close / Spring Open construction.
The damper can be ordered as Power Open / Spring Close.
The Synchronous motor can get very warm when energized/stalled for extended time periods.
To avoid overheating, do not insulate or encapsulate the motor housing.
Doing so will damage the actuator assembly and void the warranty.
Specifications:
Heavy Duty Frame
Nylon Bushings for Quieter Operation
Revolutionary Motor with greater Reliability
LED’s to Show Damper Operation
Low Leakage
Simple 2-wire Hook-up
Easier Ordering
Motor is always mounted on second dimension specified
Dimensions:
Product Height (in.): 32”
Product Width (in.): 7”
Product Depth (in.): 24”
Unit Weight: 13.6 lbs.
