Siemens GJD126.1U Spring return 2-point fire and smoke actuator 24 V (20 lb-in)

Product Description

Siemens GJD126.1U is a spring-return fire and smoke damper actuator that operates at 24 V with 20 lb-in torque and 2-point (on/off) control. The unit includes a built-in switch and an electronic fusible link and is UL555 rated for fire and smoke damper applications. It provides a typical 15 second spring return and is suitable for controlling fire and smoke dampers in HVAC systems.

• 24 V operation with 2-position (on/off) control and 20 lb-in torque
• Spring-return design with typical 15 second spring return and 30 second operating drive time
• Includes built-in auxiliary switch and electronic fusible link; UL555 rated; plenum/NEMA 1 enclosure

Product Highlights

Fire and smoke rated damper actuator, 24 V, 20 lb-in torque, spring return, built-in switch and electronic fusible link.

Product Information

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: GJD126.1U
• Country of Origin: USA

Technical Specifications

• Brand: Siemens
• MPN: GJD126.1U
• Product type: Fire and smoke damper actuator
• Input Voltage: 24 V
• Control: 2-point (On/Off)
• Operation: Spring return
• Torque: 20 lb-in (minimum)
• Stall Torque: 35 lb-in (minimum)
• Positioning time: Operating: 30 s; Spring return (power loss): Typical 15 s
• Spring return time: 15 seconds
• Electronic fusible link: Included / supported
• UL Rating: UL555
• Auxiliary Switch: Built-in (fixed switch points reported at 5° and 85°)
• Auxiliary switch type: SPDT (two switches reported on some listings)
• Angular rotation: 95°
• Cable length: 3 ft (pre-cabled)
• Enclosure Rating: NEMA 1 / IP40
• Plenum rating: Plenum-rated housing
• Housing material: Plenum-rated plastic
• Damper shaft size: 1/2-inch (13 mm) round
• Dimensions (W x H x D): 2.83 x 5.61 x 2.48 in
• Weight: 1.32 lbs (0.60 kg)
• Power consumption: Running: 10 VA / 5 W; Holding: 5 VA / 3 W
• Actuation style: Rotary
• Control application: Fire/Smoke damper control
• Angular feedback / position feedback: No position feedback reported
• Standards / Certifications: UL60730; cUL CSA 60730; CE conformity (in addition to UL555)
• Country of origin: USA