24X20 ND-RSD NC | Rectangular Damper | 24X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
This damper is 24" by 20". The motor/lever is installed on the 20" side. Full dimensional specifications are in the datasheet below.
Documents and manuals
EWC Controls 24X20 ND-RSD NC Documents
Overview
Details for 24X20 ND-RSD NC
Rectangular Damper | 24X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED
Model 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 ( Synchronous motor. It is typically a Power Close / Spring Open construction. The damper can be ordered as Power Open / Spring Close. The Model ND-RSD cannot be field-reversed. The 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. 6watt / 8va) Synchronous See reverse side for wiring solutions.
Specifications
| Item Number | 24X20 ND-RSD NC |
| Brand | EWC Controls |
| Motorized | Yes |
| Shape | Rectangular |
| Size (in) | 24 x 20 |
| Spring Return | Spring Return (NC) |
| Type | Rectangular Dampers |
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