echnical data sheet LM4A-F Damper actuator for operating air control dampers in ventilation and air-conditioning systems for building services installations For air dampers up to approx. m orque 5 Nm Nominal voltage AC/DC 4 V Control: Open-close or 3-point Damper rotation: Form-fit 8 mm echnical data Safety notes Electrical data Nominal voltage AC 4 V, 5/6 Hz / DC 4 V Nominal voltage range AC 9.... 8.8 V / DC.6... 8.8 V Power consumption In operation At rest For wire sizing.5 W @ nominal torque. W.5 VA Connection Cable m, 3 x.75 mm Functional data orque (nominal torque) Min. 5 Nm @ nominal voltage Direction of rotation Reversible with switch resp. Manual override Gearing latch disengaged with pushbutton, can be locked Angle of rotation Max. 95, can be limited at both ends with adjustable mechanical end stops Running time 5 s / 9 Sound power level Max. 35 db (A) Damper rotation Form-fit 8 mm Position indication Mechanical, pluggable Safety Protection class III Safety extra-low voltage / L Class Supply Degree of protection IP54 in any mounting position NEMA, L Enclosure ype EMC CE according to 4/8/EC Certification clus according to L 673-A and L 673--4 and CAN/CSA E673-: Certified to IEC/EN 673- and IEC/EN 673--4 Mode of operation ype Rated impulse voltage.8 kv Control pollution degree 3 Ambient temperature range 3... 5 C Non-operating temperature 4... 8 C Ambient humidity range 95% r.h., non-condensating Maintenance Maintenance-free Dimensions / Weight Dimensions See «Dimensions» on page Weight Approx. 48 g he actuator is not allowed to be used outside the specified field of application, especially in aircraft or any other form of air transport. Assembly must be carried out by 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. he cable must not be removed from the device. When calculating the required torque, the specifications supplied by the damper manufacturers (cross section, design, installation site), and the air flow conditions must be observed. 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. www.belimo.com -LM4A-F en v. 9.8 Subject to changes /
LM4A-F Product features Simple direct mounting Manual override Damper actuator AC/DC 4 V, 5 Nm, Form-fit 8 mm Simple direct mounting on the damper spindleby form-fit. he actuator, with its hollow shaft, is placed over the 8 mm square spindle of the damper and secured by two screws. Manual override with push-button possible (the gear is disengaged for as long as the button is pressed or remains locked). Adjustable angle of rotation High functional reliability Adjustable angle of rotation with mechanical end stops. he actuator is overload-proof, requires no limit switches and automatically stops when the end stop is reached. Accessories Electrical installation Notes Connection via safety isolating transformer. Other actuators can be connected in parallel. Please note the performance data. Description Wiring diagrams Open-close control 3-point control Data sheet Electrical accessories Auxiliary switch S..A.. - S..A.. Feedback potentiometer P..A.. - P..A.. Mechnical accessories Various accessories - Z-M..A../LM..A.. 3 3 Direction of rotation Cable colours: = black = red 3 = white Dimensions [mm] Dimensional drawings 47 6 6 6 8.5.5 66 3 5. 8 Damper spindle Length 8 94 4 / -LM4A-F en v. 9.8 Subject to changes www.belimo.com
LM..A..F / M..A..F 74-4.D ZF-LMA ZF-LMA ZF8-LMA mm 3 mm 4 65 www.belimo.com M-LM..A../M..A..F v. 9.8 /
LM..A..F / M..A..F 3 3 DC 48... V (LM7A..) 3 3 S S S3 3 S S S3...% LM4A.. LMC4A.. LM7A.. MC4A.. LM4A-S.. MC4A-S.. LM4AP5.. AC... 4 V L 3 L 3 S S S3 S S S3 S S S3 LM3A.. LMC3A.. MC3A.. LM3A-S.. MC3A-S.....% DC V DC V DC V MP 3 5 3 5 LM4A-SR.. LMC4A-SR.. LM4A-SX.. MC4A-SR.. LM4A-MF.. LM4A-MP.. DC 48... V (LM7A-SR..) DC... V DC... V 3 5 LM7A-SR.. AC... 4 V N L DC... V DC... V 3 5 LM3ASR.. / M-LM..A../M..A..F v. 9.8 www.belimo.com
LM..A..F / M..A..F 74-4.D ZF-LMA ZF-LMA ZF8-LMA mm 3 mm 4 65 www.belimo.com M-LM..A../M..A..F v. 9.8 /
LM..A..F / M..A..F 3 3 DC 48... V (LM7A..) 3 3 S S S3 3 S S S3...% LM4A.. LMC4A.. LM7A.. MC4A.. LM4A-S.. MC4A-S.. LM4AP5.. AC... 4 V L 3 L 3 S S S3 S S S3 S S S3 LM3A.. LMC3A.. MC3A.. LM3A-S.. MC3A-S.....% DC V DC V DC V MP 3 5 3 5 LM4A-SR.. LMC4A-SR.. LM4A-SX.. MC4A-SR.. LM4A-MF.. LM4A-MP.. DC 48... V (LM7A-SR..) DC... V DC... V 3 5 LM7A-SR.. AC... 4 V N L DC... V DC... V 3 5 LM3ASR.. / M-LM..A../M..A..F v. 9.8 www.belimo.com