Belimo Aircontrols (USA), Inc. LF24SRUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque

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1 - 5$474.00
Your Price$206.17
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12+$193.80
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LF Series DIrect coupled spring return actuator, 35 in-lb minimum torque

ApplicationFor fail-safe, modulating control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer?s specifications. The actuator is mounted directly to a damper shaft from 3/8? up to 1/2? in diameter by means of its universal clamp, 1/2? shaft centered at delivery. For shafts up to 3/4? use K6-1 accessory. 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.
SH8Push rod for KG6 & KG8 ball joints (36? L, 5/16? diameter).
ZG-DC1Damper clip for damper blade, 3.5? width.
ZG-DC2Damper clip for damper blade, 6? width.
ZS-100Weather shield - galvaneal (13? L x 8? W x 6? D).
ZS-150Weather shield - PC w/ foam seal (16? L x 8-3/8? W x 4? D).
ZS-260Explosion proof housing.
ZS-300NEMA 4X, 304 stainless steel enclosure.
TOOL-068 mm and 10 mm wrench.
PS-100Actuator power supply and control simulator.
SGA24Positioner control for modualting actuators (surface mount).
SGF24Positioner control for modulating actuators (flush mount).
ADS-100Analog to digital switch for modulating actuators.
ZG-R014 to 20 mA adaptor, 500�, 1/4 W resistor w 6? pigtail wires.
ZG-X40120 to 24 VAC, 40 VA transformer.
PTA-250Pulse width modulation interface for modulating actuators.
IRM-100Input rescaling module for modulating actuators.
KG8Ball joint for 5/16? diameter rod, 90�, galvanized steel.
KG10ABall joint for 3/8? diameter rod, zinc plated.
SH10Push rod for KG10A ball joint (36? L, 3/8? diameter).
ZG-R0250% voltage divider kit (resistors with wires).
ZG-SGFMounting plate for SGF.
ZG-109Right angle bracket for ZS-260.
ZG-110Stand-off bracket for ZS-260.
ZS-101Base plate for ZS-100.
ZS-300-5NEMA 4X, 316L stainless steel enclosure.
ZS-300-C11/2? shaft adaptor, standard wtih ZS-300(-5).
ZS-300-C23/4? shaft adaptor for ZS-300(-5).
ZS-300-C31? shaft adaptor for ZS-300(-5).
KH12Univ. crankarm, slot 21/64? w, for 3/4? to 1? dia. Shafts
KH8Univ. crankarm,slot 21/64? w,for 3/8? to 11/16? dia. shafts.
AV6-206.7? shaft extension for 1/4? to 3/4? diameter shafts.
IND-LFLF position indicator.
K6 USStandard LF clamp (3/8? to 1/2?).
K6-1LF clamp (1/2? to 3/4?).
KG6Ball joint for 5/16? diameter rod, zinc plated.
KH6Univ. crankarm, slot 1/4? w, for 3/8? to 11/16? dia. shafts.
KH-LFLF crankarm (with 1/2? diameter shaft pass through).
KH-LFVV-bolt Kit for KH-LF.
LF-PAnti-rotation bracket LF.
ZDB-LFAngle of rotation Limiter for LF.
ZF8-LF8x8 mm form fit adaptor for LF.
ZG-112LF right angle bracket (4-1/2? H x 5-1/2? W x 2-1/2? D).
ZG-LF112LF crankarm adaptor kit (includes ZG-112).
ZG-LF2LF crankarm adaptor kit (T bracket included).
ZG-LMSA-1Shaft extension for 3/8? diameter shafts (4? L).
ZG-LMSA-1/2-5Shaft extension for 1/2? diameter shafts (5? L).
OperationThe LF series actuators provide true spring return operation for reliable fail-safe application and positive close-off on air tight dampers. The spring return system provides consistent torque to the damper with, and without, power applied to the actuator. The LF series provides 95� of rotation and is provided with a graduated position indicator showing 0 to 95�. The LF24-SR US uses a brushless DC motor which is controlled by an Application Specific Integrated Circuit (ASIC) and a microprocessor. The microprocessor provides the intelligence to the ASIC to provide a constant rotation rate and to know the actuator?s exact fail-safe position. The ASIC monitors and controls the brushless DC motor?s rotation and provides a digital rotation sensing function to prevent damage to the actuator in a stall condition. The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches. Power consumption is reduced in holding mode.
Typical SpecificationSpring return control damper actuators shall be direct coupled type which require no crank arm and linkage and be capable of direct mounting to a shaft up to a 3/4? diameter and center on a 1/2? shaft (default). Actuator shall deliver a minimum output torque of 35 in-lbs. The actuator must provide modulating damper control 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. Actuators shall use a brushless DC motor controlled by a microprocessor and be protected from overload at all angles of rotation. Run time shall be constant, and independent of torque. A 2 to 10 feedback signal shall be provided for position feedback. The actuator must be designed so that they may be used for either clockwise or counter clockwise failsafe operation. 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.

Product Family

Model NumberDecriptionManufacturerPriceAvail. Qty 
LF120SUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. $193.65 35    Add To Cart
LF120US LF Series Direct Coupled Spring Return Actuator, 3 Belimo Aircontrols (USA), Inc. $166.89 97    Add To Cart
LF230SUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. Call for Pricing 0    View More Info
LF230US LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. $203.63 2    Add To Cart
LF243SUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. $209.64 2    Add To Cart
LF243US LF Series Direct Coupled Spring Return Actuator, 3 Belimo Aircontrols (USA), Inc. $172.82 53    Add To Cart
LF24MFT20US LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. $259.48 1    Add To Cart
LF24MFTS20US LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. Call for Pricing 0    View More Info
LF24MFTSUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. $212.24 5    Add To Cart
LF24MFTUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. $222.33 30    Add To Cart
LF24SREUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. $222.29 2    Add To Cart
LF24SRSUS LF Series Direct Coupled Spring Return Actuator, 3 Belimo Aircontrols (USA), Inc. $216.60 20    Add To Cart
LF24SRUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. $206.17 223    Add To Cart
LF24SUS LF Series Direct Coupled Spring Return Actuator, 3 Belimo Aircontrols (USA), Inc. $177.71 52    Add To Cart
LF24US LF Series Direct Coupled Spring Return Actuator, 3 Belimo Aircontrols (USA), Inc. $141.24 194    Add To Cart
LFC243RUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. Call for Pricing 0    View More Info
LFC243SUS LF Series Direct Coupled Spring Return Actuator, 35 in-lb minimum torque Belimo Aircontrols (USA), Inc. Call for Pricing 0    View More Info

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Cross Reference

Belimo Aircontrols (USA), Inc.LF24-SR US
ReplacementFunctional
Honeywell, Inc.VC7936ZZ11/U
Manufacturer Suggested Replacement
Belimo Aircontrols (USA), Inc.LF24-SR US
Replacement
Siemens Building TechnologiesGMA161.1P
CommentElec. Damper Actuator
Manufacturer Suggested Replacements
Belimo Aircontrols (USA), Inc.LF24-SR US
Replacement
Siemens Building TechnologiesGMA161.1P
CommentElec. Damper Actuator
Manufacturer Suggested Replacements

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