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 FS,142IN-LB,24V,2POS,15SEC-DRV/RETINFO919.00514.64
GGD121.1U/B FS,142IN-LB,24V,2POS,15SEC-DRV/RET,8 PAKINFO6,953.003,893.68
GGD126.1U FS,142IN-LB,24V,2POS,15SEC-DRV/RET,2-SPDTINFO1,110.00621.60
GGD221.1U FS,142IN-LB,115V,2POS,15SEC-DRV/RETIn Stock934.00523.04
GGD221.1U/B FS,142IN-LB,115V,2POS,15SEC-DRV/RET,8 PAKINFO7,121.003,987.76
GGD221.3U FS,142IN-LB,115V,2POS,15SEC-DRV/RETINFO943.00528.08
GGD226.1U FS,142IN-LB,115V,2POS,15SEC-DRV/RET,2-SPDTINFO1,129.00632.24
GGD321.1U FS,142IN-LB,230V,2POS,15SEC-DRV/RETINFO980.00548.80
GGD321.1U/B FS,142IN-LB,230V,2POS,15SEC-DRV/RET,8 PAKINFO7,553.004,229.68
GGD326.1U FS,142IN-LB,230V,2POS,15SEC-DRV/RET,2-SPDTINFO1,179.00660.24
GND121.1U FS,53IN-LB,24V,2POS,15SEC-DRV/RETINFO639.00357.84
GND121.1U/B FS,53IN-LB,24V,2POS,15SEC-DRV/RET,10 PAKINFO6,363.003,563.28
GND126.1U FS,53IN-LB,24V,2POS,15SEC-DRV/RET,2-SPDTINFO766.00428.96
GND126.1U/B FS,53IN-LB,24V,2POS,15SEC-DRV/RET,2-SPDT,10PKINFO7,637.004,276.72
GND126.1U/F F/S, 2PT, 24V,53 LB-IN,S,EFLINFO730.00408.80
GND221.1U FS,53IN-LB,120V,2POS,15SEC-DRV/RETIn Stock713.00399.28
GND221.1U/B FS,53IN-LB,120V,2POS,15SEC-DRV/RET,10 PAKINFO7,099.003,975.44
GND221.1U/F/B FS,53IN-LB,120V,2POS,15SEC-DRV/RET,EFL,10PKINFO7,453.004,173.68
GND226.1U FS,53IN-LB,120V,2POS,15SEC-DRV/RET,2-SPDTINFO852.00477.12
GND226.1U/B FS,53IN-LB,120V,2POS,15SEC-DRV/RET,2-SPDT,10PKINFO8,518.004,770.08
GND226.1U/F FS,53IN-LB,120V,2POS,15SEC-DRV/RET,2-SPDT,EFLINFO889.00497.84
GND321.1U FS,53IN-LB,230V,2POS,15SEC-DRV/RETINFO769.00430.64
GND321.1U/B FS,53IN-LB,230V,2POS,15SEC-DRV/RET,10 PAKINFO7,676.004,298.56
GND326.1U FS,53IN-LB,230V,2POS,15SEC-DRV/RET,2-SPDTINFO923.00516.88
GND326.1U/F FS,53IN-LB,230V,2POS,15SEC-DRV/RET,2-SPDT,EFLINFO961.00538.16


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