Siemens GJD221.1U Fire & Smoke Rated Actuator
The Siemens GJD221.1U is a fire and smoke rated electric actuator for fire and smoke dampers, featuring on/off spring return operation with a 20 lb-in torque rating. It accepts a 1/2" round shaft, operates on 120V AC…
SKU 3G-OTH-66899
Also listed as: GJD2211U · GJD221 1U · GJD221-1U
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The Siemens GJD221.1U is a fire and smoke rated electric actuator for fire and smoke dampers, featuring on/off spring return operation with a 20 lb-in torque rating. It accepts a 1/2" round shaft, operates on 120V AC input voltage, and has a power rating of 5 W (running) and 3 W (holding). This plenum-rated actuator is hardwired and comes in a NEMA 1 / IP40 enclosure.
Frequently Asked Questions
What is the Siemens GJD221.1U electric actuator used for?
The Siemens GJD221.1U is a fire and smoke rated electric actuator designed to open and close fire and smoke dampers in HVAC systems. It provides on/off spring return operation with 20 lb-in torque, ensuring damper closure during a fire event to contain smoke and flames.
What are the specifications of the Siemens GJD221.1U actuator?
The Siemens GJD221.1U operates on 120V AC input, delivers 20 lb-in torque, and accepts a 1/2" round shaft. It has a power rating of 5 W running and 3 W holding, is plenum rated, hardwired, and housed in a NEMA 1 / IP40 enclosure for indoor use.
Where to buy the Siemens GJD221.1U actuator worldwide?
3G Electric supplies the Siemens GJD221.1U fire and smoke damper actuator to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this plenum-rated, 120V AC spring return actuator.
How to install the Siemens GJD221.1U actuator on a damper?
Mount the Siemens GJD221.1U directly onto the damper's 1/2" round shaft using the provided bracket. Ensure the actuator is hardwired to a 120V AC power source per local codes. Verify spring return direction matches damper fail-safe position before commissioning.
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3G Electric supplies Siemens fire & smoke rated actuators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.