Electrical data Nominal voltage AC 24 V, 50/60 Hz DC 24 V. Power consumption In operation At rest For wire sizing

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1 echnical data sheet Rotary actuator LR4A Rotary actuator for and -way (control) ball valves orque 5 Nm Nominal voltage AC/DC 4 V Control: Open/close or -point echnical data Electrical data Nominal voltage AC 4 V, 5/6 Hz DC 4 V Power supply range AC/DC V Power consumption In operation At rest For wire sizing W at nominal torque. W VA Connection Cable m, x.75 mm Parallel connection Possible, note performance data Functional data orque (nominal torque) Min. 5 Nm at nominal voltage Manual override Gearing latch disengaged with pushbutton (temporary-permanent) Running time 9 s / 9 Noise level Max. 5 db (A) (without the valve) Position indication Mechanical, add-on Safety Protection class III Extra low voltage Degree of protection IP54 in any mounting position EMC CE according to 89/6/EEC Mode of operation ype (to EN 67-) Rated impulse voltage.8 kv (to EN 67-) Control pollution degree (to EN 67-) Ambient temperature range... 5 C Media temperature 5... C in (control) ball valve C with stem heating upon request Non-operating temperature C Ambient humidity range 95% r.h., non-condensating (to EN 67-) Maintenance Maintenance-free Dimensions / Weight Dimensions See «Dimensions» on page Weight Approx. 55 g Safety notes! he rotary actuator has been designed for use in stationary heating, ventilation and air conditioning systems and 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. All applicable legal or institutional installation regulations must be complied with. he switch for changing the direction of rotation may only be operated by authorized personnel. he direction of rotation must not be reversed in a frost protection circuit. 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. 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.

2 LR4A Rotary actuator AC/DC 4 V, 5 Nm Product features Simple direct mounting Straightforward direct mounting on the ball valve with only one screw. he assembly tool is integrated in the plug-on position indicator. he mounting position in relation to the ball valve can be selected in 9 steps. 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 Description Data sheet Electrical accessories Auxiliary switch S..A.. - S..A.. Feedback potentiometer P..A.. - P..A.. Wiring diagram Open-close control -point control Notes Connect via safety isolation transformer.! Parallel connection of other actuators possible. Note performance data. Direction of rotation switch is covered. Factory setting: Direction of rotation Direction of rotation Y Rotary actuator Rotary valve A AB = % Y Dimensions [mm] Dimensional diagrams R65 4 Further documentations Complete overview of actuators for water solutions Data sheets for ball valves Installation instructions for actuators and/or ball valves Notes for project planning (hydraulic characteristic curves and circuits, installation regulations, commissioning, maintenance etc.) Data sheet LR4A en v. 4.6 Subject to changes

3 R..A.. / LR..A.. / NR..A.. / SR..A D 4 Z M4 A A AB = % A AB = % B AB = % AB A AB B 5 A AB = % -R..A../LR..A../NR..A../SR..A.. v.. /

4 R..A.. / LR..A.. / NR..A.. / SR..A.. N L N L Y Y AC 4 V / DC 4 V S S S...% LR4A SR4A NR4A LR4A-S SR4A-S NR4A-S AC... 4 V N L L! N L L S S S S S S S S S...% LRA SRA NRA LRA-S SRA-S NRA-S AC 4 V / DC 4 V Y U DC ()... V DC... V Y U DC ()... V MP 5 5 RC4A-SR LR(C)4A-SR NR(C)4A-SR SR4A-SR LR4A-MF NR4A-MF SR4A-MF LR4A-MP SR4A-MP NR4A-MP WORKS AC 4 V / DC 4 V V MF MF p MF MF / -R..A../LR..A../NR..A../SR..A.. v..

5 R..A.. / LR..A.. / NR..A.. / SR..A.. Z 764-.A A AB A B AB -Z-R..A../LR..A../NR..A../SR..A.. v.. /