Damper actuators Yes End switch
![Siemens GQD126.1P Damper Actuator | Spring Return | 24 VAC/DC | On/Off | 20 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/GQD126.1P_medium.jpg?v=1709073182)
![Siemens GDE164.1P Damper Actuator | Non-Spring Return | 24 VAC | 0-10 Vdc | 44 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GDE164.1P_d5f839d9-32ef-4e25-ad7c-bf4c1bb1cb48_medium.jpg?v=1715709675)
![Siemens GMA126.1U Damper Actuator | Spring Return | 24 VAC/DC | On/Off | 62 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/GMA126.1U_medium.jpg?v=1692722858)
![Siemens GCA166.1P Damper Actuator | Spring Return | 24 VAC/DC | 0-10 Vdc | 160 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/GCA166.1P_medium.jpg?v=1692722772)
![Siemens GCA166.1U Damper Actuator | Spring Return | 24 VAC/DC | 0-10 Vdc | 160 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/GCA166.1U_56dc2139-98cd-4bc2-9158-c7d14ec9b6af_medium.jpg?v=1709071962)
![Siemens GMA126.1P Damper Actuator | Spring Return | 24 VAC/DC | On/Off | 62 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GMA126.1P_medium.jpg?v=1719241833)
![Schneider Electric MS41-7153-502 Damper Actuator | 133 in-lb | Spg Rtn | 24V | Modulating | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MS41-7153-502_medium.png?v=1711999251)
![Belimo FSAF24A-S Fire & Smoke Actuator | 180 in-lb | Spring Return | 24V | On/Off | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/FSAF24A-S-product_retina_09f95958-e301-4bb9-b2da-add87f40fb16_medium.jpg?v=1717426078)
![Johnson Controls M9220-BGC-3 DAMPER ACTUATOR 20 NM SR; 20 NM SR DPR ACT ON-OFF 24 VAC 50/60 HZ 24 VDC 2 AUX SWITCHES | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/M9220-BGC-3_medium.png?v=1715733362)
![Belimo AFXUP-S N4 Damper Actuator | 180 in-lb | Spg Rtn | 24 to 240V (UP) | On/Off | SW | NEMA 4 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/AF_NF_-S_N4_web-product_retina_5c556ddc-0edc-467e-8d53-d1f0fc2b1750_medium.jpg?v=1714682138)
![Siemens GGD226.1U Damper Actuator | Spring Return | 120 VAC | On/Off | 142 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44048_en_medium.jpg?v=1715960122)
![Siemens GCA126.1U Damper Actuator | Spring Return | 24 VAC/DC | On/Off | 160 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GCA126.1U_eb53f386-3db4-4896-a09e-1e333095b1e9_medium.jpg?v=1717709009)
![Siemens GJD226.1U Damper Actuator | Spring Return | 120 VAC | On/Off | 20 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GJD226.1U_504f7bd3-876c-4cec-898c-0864edebe259_medium.jpg?v=1718031833)
![Schneider Electric MS40-7043-501 Damper Actuator | 35 in-lb | Spg Rtn | 24V | Modulating | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MS40-7043-501_medium.png?v=1711999267)
![Schneider Electric MA40-7040-501 Damper Actuator | 35 in-lb | Spg Rtn | 120V | On/Off | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MX40-704X_SX_300X_245a101f-23cf-4fd4-ae4f-1e32ae72a78f_medium.jpg?v=1711999214)
WHAT IS A DAMPER ACTUATOR END SWITCH?
End switches are an essential component in HVAC systems, providing safety and control for airflow and other components. They are typically mounted to a fan and/or light as an open/closed indicator. When the damper is set to open, one of the blades makes contact with the spring rod of the end switch, completing a connection and allowing power to flow. When the damper is set closed, the blade breaks contact with the spring rod, disconnecting power. End switches are important in maintaining the proper operation of HVAC systems and should be checked regularly for any signs of damage or malfunction of the unit.
You can also add end switches as a safety measure in certain types of industrial environments, depending on the application. For example, some HVAC systems use them to shut off the system if smoke or dangerous levels of carbon monoxide are detected. This helps prevent fires and other disasters from occurring within a building.
In addition, end switches can be used to control dampers in various types of applications such as fire safety systems. In these systems, the end switch will be mounted and wired to a fire alarm and actuate the dampers in the event of an emergency. The end switches allow the users to effectively control airflow during potentially dangerous situations.
SHOP FOR DAMPER ACTUATORS WITH END SWITCH PRODUCT SUPPLY TODAY!
At Blackhawk Supply, we offer thousands of product lines for all your HVAC and zoning system control applications. Whether you are looking for an actuator with an end switch, spring return, or fail-safe - we've got you covered! Place your order today!
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