Belimo Aircontrols (USA), Inc. GKB24-SR Damper Actuator at Controls Central

Belimo Aircontrols (USA), Inc. GKB24-SR Damper Actuator

Brand: Belimo Aircontrols (USA), Inc.

SKU: GKB24SR

	Unit Price
List Price	$2,112.00
Your Price	$950.40	You Save	$1,161.60 (55.0 %)

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Damp.NEMA4(EFS), 360in-lb,SR (2-10V),24V

Actuator Type	Electronic fail-safe

Control Type	Modulating

Electrical Connection	cable

Running time	150 seconds

Voltage	AC/DC 24ï¿½V

Angle of Rotation	95ï¿½

Direction of Rotation (Fail-Safe)	reversible with switch

Direction of Rotation (Motor)	reversible with built-in switch

Power Consumption (Holding)	3ï¿½W

Power Consumption (Running)	11 W

Degree of Protection	NEMAï¿½2, ULï¿½Enclosureï¿½Typeï¿½2

Shaft Diameter	1/2" to 1.05" round, centers on 3/4" with insert, 1.05" without insert

Torque	360 in-lbs [40 Nm]

Safety Function	YES

Manual Override	external push button

Application	For fail-safe, proportional control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer?s specifi cations. The actuator is mounted directly to a damper shaft up to 1.05? in diameter by means of its universal clamp. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft. The actuator operates in response to a 2 to 10 VDC or, with the addition of a 500? resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 VDC feedback signal is provided for position indication. Not to be used for a master-slave application.

Application

For fail-safe, proportional control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer?s specifi cations. The actuator is mounted directly to a damper shaft up to 1.05? in diameter by means of its universal clamp. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft. The actuator operates in response to a 2 to 10 VDC or, with the addition of a 500? resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 VDC feedback signal is provided for position indication. Not to be used for a master-slave application.

Weight	3.85 lbs [1.75 kg]

Servicing	maintenance free

Power Supply	24VAC ï¿½20% 50/60Hz 24VDC ï¿½10%

Transformer Sizing	21VA (class 2 power source)

Electrical Connection	18 GA plenum rated cable ï¿½" conduit connector protected NEMA 2 (IP54) 3 ft [1m] 10 ft [3m] 16 ft [5m]

Overload Protection	electronic throughout 0 to 95 rotation

Input Impedance	100 kï¿½ (0.1 mA), 500 ï¿½

Angle of Rotation	max. 95ï¿½, adjustable with mechanical stop electronically variable

Manual Override	external push button

Housing	NEMA2, IP54, UL enclosure type 2

Quality Standard	ISO 9001

Position Indication	refl ective visual indicator (snap-on)

Feedback Output U	2 to 10VDC, 0.5mA max

Housing Material	UL94-5VA

Ambient temperature	-22ï¿½F to +122ï¿½F [-30ï¿½C to +50ï¿½C]

Noise level	< 45dB(A

Humidity	5 to 95% RH non-condensing (EN 60730-1)

Direction of Rotation	reversible with switch

Torque	360 in-lb [40 Nm]

Bridge Time	2 second delay before fail-safe activates

Storage temperature	-40ï¿½F to +176ï¿½F [-40ï¿½C to +80ï¿½C]

Power consumption	12W (3W)

Fail-Safe Position	adjustable with dial, 0 to 1 in 10ï¿½ increments

Operation range Y	2 to 10 VDC, 4 to 20mA

Running time normal operation fail-saf	150 seconds (default), variable 90 to 150 seconds 35 seconds

Agency list	cULus acc. to UL 60730-1A/-2-14 CAN/CSA E60730-1:02 CE acc. to 2004/108/EC and 2006/95/EC

Initial charge	5 to 20 seconds

S1A, S2A	Auxiliary Switch(es)

P...A	Feedback Potentiometers

ZS-100	Weather Shield - Steel

ZS-150	Weather Shield - Polycarbonate

ZS-260	Explosion Proof Housing

ZG-JSA (-1, 2,3)	Jackshaft Adaptors for Hollow Jackshafts

ZS-300 (-1) (-5)	NEMA 4X Housing

PS-100	Actuator Power Supply Simulator

P370	Shaft Mount Auxiliary Switch

K-GM20	?" [20mm] Shaft Clamp

ZG-102	Multiple Actuator Mounting Bracket

TOOL-07	13 mm Wrench

ZG-GMA	Crank arm Adaptor Kit

Operation

The GK..24-SR actuator provides 95ï¿½ of rotation and a visual indicator shows the position of the actuator. When reaching the damper or actuator end position the actuator automatically stops. The gear can be manually disengaged by pressing the button located on the actuator cover. The GK..24-SR actuators use a brushless DC motor, which is controlled by an Application Specifi c Integrated Circuit (ASIC). The ASIC monitors and controls the actuators rotation and provides a digital rotation sensing (DRS) function to prevent damage to the actuator in a stall condition. Power consumption is reduced in a holding mode. The actuator is electronically protected against overload. The anti-rotation strap supplied with the actuator will prevent lateral movement. Add-on auxiliary switches or feedback potentiometers are easily fastened directly onto the actuator body for signaling and switching functions.

Typical Specification

Proportional control damper actuators shall be electronic direct-coupled type, which require no crank arm and linkage and be capable of direct mounting to shaft up to 1.05" diameter. Actuators must provide proportional damper control response to a 2 to 10 VDC or, with the addition of a 500ï¿½ resistor, a 4 to 20 mA control input from an electronic controller or positioner. Actuators shall have brushless DC motor technology and be protected from overload at all angles of rotation. Actuators shall have reversing switch and manual override on the cover. Run time shall be constant and independent of torque. Actuators shall be cULus listed, have a 5-year warranty, and be manufactured under ISO 9001 International Quality Control Standards. Actuators shall be as manufactured by Belimo.

Fail-Safe Indication	Green LED status indicator light sequence: On: operation ok, no faults Blinking: fail-safe mechanism is active Off: fault is detected or not in operation / capacitors charging