echnical data sheet LH4A-S-P.. Linear actuators for adjusting air dampers and slide valves in ventilation and air-conditioning systems for building services installations For air dampers up to approx. m Actuating force 5 ominal voltage AC/DC 4 V Control: Open-close or -point Length of stroke up to max. or mm, adjustable in steps of mm With integrated auxiliary switch With connecting terminals Overview of types ype Stroke Weight LH4A-S-P up to approx. mm, adjustable in steps of mm 575 g LH4A-S-P up to approx. mm, adjustable in steps of mm 6 g echnical data Electrical data ominal voltage AC 4 V, 5/6 Hz / DC 4 V ominal voltage range AC 9.... 8.8 V / DC.6... 8.8 V Power consumption In operation At rest For wire sizing.5 W @ nominal force.5 W VA Auxiliary switch x SPD, ma... (.5) A, AC 5 V (adjustable... %) Connection Motor Auxiliary switch erminals 4 mm (Cable 4... mm, three-core) erminals 4 mm (Cable 4... mm, three-core) Functional data Actuating force 5 @ nominal voltage Stroke See «Overview of types» Direction of stroke Reversible with switch resp. Manual override Gearing latch disengaged with pushbutton, can be locked Running time 5 s / mm Sound power level Max. 5 db (A) Safety Protection class III Extra-low voltage / UL Class Supply Degree of protection IP54 in any mounting position EMA, UL Enclosure ype EMC CE according to 4/8/EC Certification culus according to UL 67-A and UL 67--4 and CA/CSA E67-: Certified to IEC/E 67- and IEC/E 67--4 Mode of operation ype Rated impulse voltage.8 kv Control pollution degree Ambient temperature... 5 C on-operating temperature 4... 8 C Ambient humidity 95% r.h., non-condensating Maintenance Maintenance-free Dimensions / Weight Dimensions See «Dimensions» on page Weight See «Overview of types» Safety notes! he actuator is not allowed to be used outside the specified field of application, especially in aircraft or in any other airborne means of transport. It may only be installed by suitably trained personnel. Any legal regulations or regulations issued by authorities must be observed during assembly. he device may only be opened at the manufacturer's site. It does not contain any parts that can be replaced or repaired by the user. www.belimo.com -LH4A-S-P.. en v..9 Subject to changes /
LH4A-S-P.. Linear actuators, AC/DC 4 V, 5, with integrated auxiliary switch, with connecting terminals Safety notes Product features Manual override Adjustable stroke High functional reliability he rotary supports and coupling pieces available as accessories must always be used if lateral forces are likely. In addition, the actuator must not be tightly bolted to the application. It must remain movable via the rotary support (refer to «Assembly notes»). If the linear actuator is exposed to severely contaminated atmosphere, appropriate precautions must be taken on the system side. Excessive deposits of dust, soot etc. can prevent the gear rack from being extended and retracted correctly. If not installed horizontally, the gear disengagement pushbutton may only be actuated when there is no pressure on the gear rod. o calculate the torque required for air dampers and slide valves, the specifications supplied by the damper manufacturers concerning the surface, cross section, design, installation site and the air flow conditions must be observed. If a rotary support and/or coupling piece is used, losses in the actuation force losses are to be expected. he device contains electrical and electronic components and is not allowed to be disposed of as household refuse. All locally valid regulations and requirements must be observed. Manual override with push-button possible (the gear is disengaged for as long as the button is pressed or remains locked). he stroke of the gear rack can be adjusted on both sides in increments of mm by means of mechanical end stops. he actuator is overload-proof, requires no limit switches and automatically stops when the end stop is reached. Flexible signalization Flexible signalization with adjustable auxiliary switch (... %). Accessories Electrical installation Description Wiring diagrams Open-close control Priority on connection Data sheet Mechanical accessories Rotary support to compensate lateral forces Z-DS - Z-LH..A.. Coupling piece - Z-LH..A.. End stop set Z-AS - Z-LH..A.. otes Connect via safety isolation transformer.! Other actuators can be connected in parallel. ote the performance data. S S S S S S Direction of stroke...%...% -point control Auxiliary switch S S S S S S S S S Direction of stroke...% / -LH4A-S-P.. en v..9 Subject to changes www.belimo.com
LH4A-S-P.. Linear actuators, AC/DC 4 V, 5, with integrated auxiliary switch, with connecting terminals Dimensions [mm] Dimensional drawings 75 65.5 68 6.5 mm 5 mm 4... mm 4. 94 5 B 67 ype Max. stroke A B LH4A-S-P.5 64. LH4A-S-P.5 64. A Assembly notes Application without transverse forces Application with transverse forces Caution If a rotary support and/or coupling piece is used, losses in the actuation force are to be expected.! he linear actuator is screwed directly to the housing at three points. Afterwards, the head of the gear rod is fastened to the moving part of the ventilation application (e.g. damper or slide valve). he coupling piece with the internal thread () is connected to the head of the gear rod. he rotary support (Z-DS) is screwed to the ventilation application. Afterwards, the linear actuator is screwed to the previously mounted rotary support with the enclosed screw. Afterwards, the coupling piece, which is mounted to the head of the gear rod, is attached to the moving part of the ventilation application (e.g. damper or slide valve). he transverse forces can be compensated for to a certain limit with the rotary support and/or coupling piece. he maximum permissible swivel angle of the rotary support and coupling piece is, laterally and upwards. www.belimo.com -LH4A-S-P.. en v..9 Subject to changes /
7749-.C LH..A. / LH4A-SX.. / LH4A-MF.. / LH4A-MP.. / LHV-D-MP... A x Ø max. 8mm mm mm B ± mm Z-DS Z-DS 4.5 Z-DS 5.5 www.belimo.com M-LH..A.. v. 7.9 / 4
LH4A-SR. / LHASR.. A x Ø max. 8mm B ± Z-DS Z-DS 4.5 5.5 / 4 M-LH..A.. v. 7.9 www.belimo.com
LH..A.. / LH4A-SR. / LH4A-SX.. / LH4A-MF.. / LH4A-MP.. / LHV-D-MP.. / LHASR.. L L L AC 4 V / DC 4 V S S S...% LH4A.. LH4A-S.. AC... 4 V! L L L L S S S S S S S S S LHA.. LHA-S.....% AC 4 V / DC 4 V Y U DC V DC V Y U DC V MP 5 5 LH4A-SR.. LH4A-SX.. LH4A-MF.. LH4A-MP.. LHV-D-MP.. AC V L SG..4 Y U 5 DC... V DC... V 5 LHASR.. www.belimo.com M-LH..A.. v. 7.9 / 4
LH..A..P Z-P 6 mm 5 mm 4...6 mm ype 45-6...8 mm ype 45-4 8... mm ype 45-6 5 max 4 m 4 / 4 M-LH..A.. v. 7.9 www.belimo.com