Ewc Spring return (nc) Spring return
We offer over 70 EWC HVAC products, including Bypass Dampers, Damper Controls & Accessories, Rectangular Dampers, Round Dampers, and Zoning Panels.
View Details
![EWC Controls 14X16 ND-RSD NC Rectangular Damper | 14X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_db7bb839-f5a8-4b95-b4d0-e2cb947b00a4_medium.png?v=1713902371)
14X16 ND-RSD NC | Rectangular Damper | 14X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 14X16 ND-RSD NC
View Details
![EWC Controls 12X18 ND-RSD NC Rectangular Damper | 12X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f7024c25-1ea2-4d3a-a0e8-e0505b879b0b_medium.png?v=1713902331)
12X18 ND-RSD NC | Rectangular Damper | 12X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 12X18 ND-RSD NC
View Details
![EWC Controls 10X22 ND-RSD NC Rectangular Damper | 10X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_8c2b01b1-ddfe-463f-990b-86d93701915b_medium.png?v=1713902391)
10X22 ND-RSD NC | Rectangular Damper | 10X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X22 ND-RSD NC
View Details
![EWC Controls 10X12 ND-RSD NC Rectangular Damper | 10X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_45ea24b4-e003-4a42-a35f-b8bf737460b0_medium.png?v=1713902297)
10X12 ND-RSD NC | Rectangular Damper | 10X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X12 ND-RSD NC
View Details
![EWC Controls 8X18 ND-RSD NC Rectangular Damper | 8X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_eeb5dcf2-1672-4f51-91f7-a11921381ec2_medium.png?v=1713902511)
8X18 ND-RSD NC | Rectangular Damper | 8X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 8X18 ND-RSD NC
View Details
![EWC Controls 8X16 ND-RSD NC Rectangular Damper | 8X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_143c2109-5fe2-4f66-b538-787b76ecc86d_medium.png?v=1713902502)
8X16 ND-RSD NC | Rectangular Damper | 8X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 8X16 ND-RSD NC
View Details
![EWC Controls 30X30 ND-RSD NC Rectangular Damper | 30X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_bfe61570-2c60-47fa-a5dd-7248b802ce23_medium.png?v=1713902460)
30X30 ND-RSD NC | Rectangular Damper | 30X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X30 ND-RSD NC
View Details
![EWC Controls 30X20 ND-RSD NC Rectangular Damper | 30X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_2b050bcc-2b10-4410-9a29-e8a74b6837fd_medium.png?v=1713902480)
30X20 ND-RSD NC | Rectangular Damper | 30X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X20 ND-RSD NC
View Details
![EWC Controls 30X18 ND-RSD NC Rectangular Damper | 30X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_20b975a2-86ab-4ff3-bb88-3c2854b0284a_medium.png?v=1713902502)
30X18 ND-RSD NC | Rectangular Damper | 30X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X18 ND-RSD NC
View Details
![EWC Controls 24X12 ND-RSD NC Rectangular Damper | 24X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c75d0705-4a1c-44a9-992b-4485c522f5b0_medium.png?v=1713902418)
24X12 ND-RSD NC | Rectangular Damper | 24X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X12 ND-RSD NC
View Details
![EWC Controls 22X16 ND-RSD NC Rectangular Damper | 22X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_1957a863-2cde-4ed9-bfec-bb7d0f95a748_medium.png?v=1713902475)
22X16 ND-RSD NC | Rectangular Damper | 22X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X16 ND-RSD NC
View Details
![EWC Controls 22X10 ND-RSD NC Rectangular Damper | 22X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_0c810f0a-4643-479f-baf3-8a1ae88012b1_medium.png?v=1713902442)
22X10 ND-RSD NC | Rectangular Damper | 22X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X10 ND-RSD NC
View Details
![EWC Controls 14X14 ND-RSD NC Rectangular Damper | 14X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4164cd5b-7ea0-442c-b328-296c427c4393_medium.png?v=1713902375)
14X14 ND-RSD NC | Rectangular Damper | 14X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 14X14 ND-RSD NC
View Details
![EWC Controls 20X24 ND-RSD NC Rectangular Damper | 20X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_84ee8f44-33de-400c-9299-ff442eeb9fb2_medium.png?v=1713902401)
20X24 ND-RSD NC | Rectangular Damper | 20X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X24 ND-RSD NC
View Details
![EWC Controls 18X20 ND-RSD NC Rectangular Damper | 18X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_dedcea40-f6ed-463d-baea-b75e43a15109_medium.png?v=1713902409)
18X20 ND-RSD NC | Rectangular Damper | 18X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X20 ND-RSD NC
View Details
![EWC Controls 16X28 ND-RSD NC Rectangular Damper | 16X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9f155e90-1f2f-4db5-b991-6ddd517db0b8_medium.png?v=1713902374)
16X28 ND-RSD NC | Rectangular Damper | 16X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X28 ND-RSD NC
View Details
![EWC Controls 16X22 ND-RSD NC Rectangular Damper | 16X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6a590c6a-0125-4228-b6db-a77a28a967fe_medium.png?v=1713902374)
16X22 ND-RSD NC | Rectangular Damper | 16X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X22 ND-RSD NC
View Details
![EWC Controls 14X30 ND-RSD NC Rectangular Damper | 14X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4f14f047-a373-4136-8e8b-919ecee41ae5_medium.png?v=1713902410)
14X30 ND-RSD NC | Rectangular Damper | 14X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X30 ND-RSD NC
View Details
![EWC Controls 14X18 ND-RSD NC Rectangular Damper | 14X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_69f9d7a0-190a-4303-9544-956df8a1d9e0_medium.png?v=1713902395)
14X18 ND-RSD NC | Rectangular Damper | 14X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 14X18 ND-RSD NC
View Details
![EWC Controls 12X28 ND-RSD NC Rectangular Damper | 12X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_eb486c98-fb23-4f31-9295-cfc5e5373357_medium.png?v=1713902328)
12X28 ND-RSD NC | Rectangular Damper | 12X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 12X28 ND-RSD NC
View Details
![EWC Controls 12X20 ND-RSD NC Rectangular Damper | 12X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c99213ac-c8a6-4def-b586-81fd07f1915e_medium.png?v=1713902360)
12X20 ND-RSD NC | Rectangular Damper | 12X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 12X20 ND-RSD NC
View Details
![EWC Controls 10X30 ND-RSD NC Rectangular Damper | 10X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f5ee3974-b873-40ad-b5f9-83dd6bc37d7f_medium.png?v=1713902338)
10X30 ND-RSD NC | Rectangular Damper | 10X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10X30 ND-RSD NC
View Details
![EWC Controls 10X24 ND-RSD NC Rectangular Damper | 10X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_50307fef-3b61-49c5-915d-448b78d37a09_medium.png?v=1713902331)
10X24 ND-RSD NC | Rectangular Damper | 10X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X24 ND-RSD NC
View Details
![EWC Controls 10X20 ND-RSD NC Rectangular Damper | 10X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_0eb209f9-e8d8-4189-ba63-4109b90ec66c_medium.png?v=1713902305)
10X20 ND-RSD NC | Rectangular Damper | 10X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X20 ND-RSD NC
Committed to customer satisfaction
as experts in EWC
Recently Viewed
Popular Products
View all →![Contemporary Controls BASRT-B BASrouter BACnet/IP to MS/TP to Ethernet DIN-Rail Mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/famrouter_597bd9dd-c51e-49b9-9b65-2d9234166d6e_large.jpg?v=1708892792)
BASRT-B | BASrouter BACnet/IP to MS/TP to Ethernet DIN-Rail Mount | Contemporary Controls
Brand: Contemporary Controls
SKU: BASRT-B![Contemporary Controls EIPR-E Skorpion 10/100Mbps IP Router | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/eipr_d8dba850-4a41-4563-b74c-83da2487d744_large.jpg?v=1708892795)
EIPR-E | Skorpion 10/100Mbps IP Router | Contemporary Controls
Brand: Contemporary Controls
SKU: EIPR-E![Belimo FSLF120 US Fire & Smoke Actuator | 30 in-lb | Spg Rtn | 120V | On/Off | 1m Cable | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/FSLF120-US-web_53b86354-0c5c-403d-8790-eae2efed551c_large.png?v=1714683634)
FSLF120 US | Fire & Smoke Actuator | 30 in-lb | Spg Rtn | 120V | On/Off | 1m Cable | Belimo
Brand: Belimo
SKU: FSLF120 US![KMC BAC-5051E Router: BACnet, IP/Enet/Single MSTP | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/BAC-5051E-medium_large.jpg?v=1715960084)
BAC-5051E | Router: BACnet, IP/Enet/Single MSTP | KMC (OBSOLETE)
Brand: KMC
SKU: BAC-5051E