Actuators and Dampers

GND, GGD Series

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Product Bar End

GND, GGD Series

Fire and Smoke Damper Actuators GND, GGD Series

Fire and Smoke Damper Actuators


The Siemens GND, GGD Series fire/smoke damper actuators are spring return, 2-position, 15 second actuators designed to operate UL Listed smoke control dampers and combination fire/smoke dampers. The GND Series has 53 in-lb (6 Nm) of torque and the more powerful GGD Series has 142 in-lb (16 Nm) of torque. These actuators have patented built-in electronic fusible links; there is no need to buy/install separate parts to perform that function.


(Wholesale customers, log in for your special pricing)

QtyModelDescriptionIn StockList PriceInternet Price
GGD121.1U 142 IN LB, 2POS FS ACT, 24VACDC, 15 SEC INFO526.00420.80
GGD121.1U/B ACT.F/S,2PT,24V ,142LB-BULK8 INFO3,633.002,906.40
GGD121.3U F/S,2PT,24V,142LB-IN,SPSHAFT INFO496.00396.80
GGD126.1U 142 LB-IN,24VAC,2PT,15 SEC. SWITCHES INFO637.00509.60
GGD221.1U 142 IN LB, 2POS FS ACT, 120VAC, 15 SEC In Stock536.00428.80
GGD221.1U/B ACT.F/S,2PT,115V,142LB-BULK8 INFO3,720.002,976.00
GGD221.1U/BR F/S,2PT,120V,142LB-IN,STSHAFT,105DEG INFO548.00438.40
GGD221.3U F/S,2PT,115V,142LB-IN,SPSHAFT INFO540.00432.00
GGD226.1U 142 LB-IN,120VAC,2-PT,15 SEC. SWITCHES INFO647.00517.60
GGD321.1U F/S,2PT,230V,142LBIN,ST SHAFT INFO561.00448.80
GGD321.1U/B 230V 2PT F/S ACTUATOR 8 PACK INFO3,946.003,156.80
GGD326.1U 142LB-IN,230VAC,2-PT,15 SEC. SWITCHES INFO676.00540.80
GND121.1U 53 IN LB, 2POS FS ACT, 24VACDC, 15 SEC INFO366.00292.80
GND121.1U/B F/S, 2PT, 24V,53 LB-IN,BULK-10 INFO3,325.002,660.00
GND121.1U/F F/S, 2PT, 24V,53 LB-IN,EFL INFO383.00306.40
GND126.1U 53 IN LB, 2POS FS ACT, 24VACDC, 15 SEC, AUX INFO439.00351.20
GND126.1U/B F/S, 2PT, 24V,53 LBIN,S,BULK-10 INFO3,989.003,191.20
GND126.1U/F F/S, 2PT, 24V,53 LB-IN,S,EFL INFO456.00364.80
GND221.1U 53 IN LB, 2POS FS ACT, 120VAC, 15 SEC In Stock407.00325.60
GND221.1U/B F/S, 2PT, 120V,53 LB-IN,BULK-10 INFO3,709.002,967.20
GND221.1U/F F/S, 2PT, 120V,53 LB-IN,EFL INFO427.00341.60
GND221.1U/F/B F/S, 2PT, 120V,53 LBIN,EFL,BULK10 INFO3,893.003,114.40
GND226.1U 53 IN LB, 2POS FS ACT, 120VAC, 15 SEC, AUX INFO489.00391.20
GND226.1U/B F/S, 2PT, 120V,53 LBIN,S,BULK-10 INFO4,451.003,560.80
GND226.1U/F F/S, 2PT, 120V,53 LB-IN,S,EFL INFO510.00408.00
GND321.1U F/S, 2PT, 230V,53 LB-IN INFO441.00352.80
GND321.1U/B F/S, 2PT,230V,53 LB-IN,BULK-10 INFO4,010.003,208.00
GND321.1U/F F/S, 2PT, 230V,53 LB-IN,EFL INFO463.00370.40
GND326.1U F/S, 2PT, 230V,53 LB-IN,S INFO528.00422.40
GND326.1U/F F/S, 2PT, 230V,53 LB-IN,S,EFL INFO550.00440.00


No accessories found
  • Reversible fail-safe spring return for CCW, CW rotation in the same actuator
  • Patented built-in electronic fusible link
  • Fast, 15-second operation
  • 2 year warranty

Power Consumption:

 :GGD Running: 150 VA; Holding: 10 VA

 :GND Running: 20VA/12W; Holding: 8VA/6W; Holding(120VAC): 9VA

Running Torque:

 :GGD 142 lb-in (16 Nm)

 :GND 53 lb-in (6 Nm) (minimum)

Minimum Stall Torque:

 :GGD 350 lb-in (39 Nm)

 :GND 160 lb-in (18 Nm)

Torque Reduction at Elevated Temperature:Less than 10%

Runtime for 90°:

 :Operating with Motor at 60 Hz 15 seconds nominal

 :Closing (On Power Loss) with Spring Return 15 seconds maximum

Manual Override:Yes

Life Expectancy:30,000 full cycles

Auxilliary Switch:2-SPST, 24VDC, 24VAC to 250VAC, 6A resistive, 2 FLA/LRA (optional)

Shaft Diameter:

 :GGD 3/8″ to 1″ (8 to 2.56 cm)

 :GGD221.3U 1.05″ max (2.66 cm)

 :GND 0.5″ (1.27 cm) round

Minimum Shaft Length:0.75" (2.0 cm)

Enclosure Rating:NEMA 1

Housing Material:Die cast aluminum alloy

Operating Temperature:0° to 130℉ (-18° to 55℃);

 :One time 350℉ (177℃) for 1/2 hour (per UL555S)

Storage Temperature:-25° to 158°F (-32° to 70°C)

Humidity:Maximum 95% RH non-condensing

Pre-Cabled Connection:18 AWG

Dimensions:See dimensions table


GGD:4.8 lbs (2.2 kg)

GND:2.9 lbs (1.3 kg)

Agency Certification:UL listed to UL873, cUL certified to Canadian standard C22.2 No. 24-93

Warranty:2 years