Siemens GRD226.1U Fail-Safe Spring Return Actuator
The SIEMENS GRD226.1U is a fail-safe spring return electric actuator for dampers, featuring a 1/2" round shaft and 30 lb-in torque. It operates on 120V AC input voltage with hardwired plenum rated cables and includes…
SKU 3G-OTH-68538
Also listed as: GRD2261U · GRD226 1U · GRD226-1U
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The SIEMENS GRD226.1U is a fail-safe spring return electric actuator for dampers, featuring a 1/2" round shaft and 30 lb-in torque. It operates on 120V AC input voltage with hardwired plenum rated cables and includes two auxiliary switches for output signaling. This plenum rated actuator is designed for on/off damper control applications.
Frequently Asked Questions
What is the Siemens GRD226.1U electric actuator used for?
The Siemens GRD226.1U is a fail-safe spring return electric actuator designed for on/off damper control in HVAC systems. It provides 30 lb-in torque and is plenum rated, making it suitable for air-handling spaces where fire and smoke dampers require reliable spring-return closure upon power loss.
What are the specifications of the Siemens GRD226.1U actuator?
The Siemens GRD226.1U operates on 120V AC input voltage with a 1/2" round shaft and 30 lb-in torque. It includes two auxiliary switches for output signaling and features hardwired plenum rated cables. The actuator is plenum rated and designed for fail-safe spring return damper applications.
Where to buy the Siemens GRD226.1U actuator worldwide?
You can source the Siemens GRD226.1U actuator through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this fail-safe spring return damper actuator.
How to install the Siemens GRD226.1U spring return actuator?
Mount the actuator directly onto the damper shaft using the provided bracket, ensuring the 1/2" round shaft is fully engaged. Connect 120V AC power via the hardwired plenum rated cables per the wiring diagram. Test spring return operation by removing power to verify fail-safe closure. Follow Siemens installation manual for torque and auxiliary switch setup.
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3G Electric supplies Siemens fail-safe actuators with spring return. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
