Remote Actuator Unit (RAU) for DD-Frame (D7)
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Remote Actuator Unit (RAU) for DD-Frame (D7) Remote actuator unit is factory-fitted on the left hand side of the DD-Frame circuit breaker The RAU module is designed to function on a wide voltage range: 18 Vdc to 80 Vdc The RAU can be supplied from main system voltage or a standalone source The DD-Frame circuit breaker operates on the main system voltage, AC or DC LED for status indication Selectable pulse or constant actuate signal operation Provides status of the load side of the circuit breaker Can be paired with up to a 3 pole DD-Frame circuit breaker Battery management Telecommunications Railways Solar System automation Switching operations in distant, inconvenient or unreachable environments The remote actuation unit (RAU) is a factory-fitted module that enables the automated switching of a DD-Frame circuit breaker. The RAU internally actuates the circuit breaker both ON and OFF. The RAU is mounted on the left hand side of the circuit breaker and can actuate up to three poles. The RAU is available with circuit breakers with a standard toggle handle only. The unit has an LED that provides an indication of the mode of operation (PULSE or CONSTANT). A colour flag shows the position of the latch mechanism of the connected circuit breaker - green for OFF and red for ON. The RAU provides the option to set the actuation signal voltage between pulse or constant mode. This is selected by a switch situated on the front of the RAU.

Remote Actuator Unit (RAU) for DD-Frame (D7) Technical Data Actuation signal voltage (For other voltages refer to page 11) Starting current Number of poles that can be actuated Ambient operating temperature Typical actuation time Power consumption Number of operations Flammability Toxicity Pollution degree Signal Out Resistance to LOAD terminal Product Type RAU 18  Vdc to 80  Vdc HIGH (ON) Min. 3.3  Vdc to Max. 60  Vdc Constant Mode LOW (OFF) Min. 0.0 Vdc to Max. 0.5  Vdc On or OFF Min. 3.3  Vdc to Max. 60  Vdc Pulse Mode Pulse Duration 500 ms to 1000 ms < 250 mA 1 to 3 pole DD-Frame -...

Remote Actuator Unit (RAU) for DD-Frame (D7) Ordering Information To order a DD-Frame with RAU, select 7 in Group 2 from the DD-Frame circuit breaker ordering code. Group 1: Frame Group 2: Type Group 3: Mounting Group 4: Handle Type or Blank for Reduced Handle Group 5: Termination Code D Code 7 Code A Code Description DD-Frame Description Remote actuation unit Description Front mount, rectangular aperture, standard (toggle) handle type Description Comments Comments RAU module attached to DD-Frame unit Comments Warning: Maximum penetration depth into the product by the mounting screw is 6 mm...

Remote Actuator Unit (RAU) for DD-Frame (D7) Ordering Information Group 10: Circuit Configuration (circuit breaker’s internal construction) Group 11: Auxiliary and Alarm Switches Types & Options Description Switch Circuit breaker (series trip current sensing) Circuit breaker with trip alarm, but NO MID trip (Reversed function - Latch type) Description Not applicable Gold tips, equally spaced terminals, 2.75 mm, (0.108”) - DB3 Silver tips, equally spaced terminals, 2.75 mm, (0.108”) - DB2 Silver tips, offset terminals, 4.75 mm mm (0.189’’) - VD4 Parallel bridge housing - for all parallel...

Remote Actuator Unit (RAU) for DD-Frame (D7) Connection Diagrams LINE 1 RAU UNIT ACTUATE SIGNAL COMMON GROUND COMMON GROUND SUPPLY VOLTAGE SUPPLY VOLTAGE INTELLIGENT CONTROLLER ACTUATE SIGNAL RAU UNIT ACTUATE SIGNAL COMMON GROUND SUPPLY VOLTAGE INTELLIGENT CONTROLLER SUPPLY VOLTAGE ACTUATE SIGNAL INTELLIGENT CONTROLLER COMMON GROUND Note: Signal out only provides status indication of the adjacent pole through a 330 kΩ resistor. Data Sheet Page 5 o

Remote Actuator Unit (RAU) for DD-Frame (D7) Plug compatible with DEGSON 2EDGKF-5.08-04P -14 and a PHOENIX CONTACT plug 1780002. The RAU front switch has two positions, namely ‘‘Pulse’’ or ‘‘Constant’’. Refer to RAU Operation on page 7 for more details. MOUNTING SCREW TERMINALS Installation Instructions 1. Before connecting the RAU to power, the circuit breaker must be in the OFF position and the RAU front switch must be set to the user’s option of PULSE or CONSTANT. 2. Isolate the power to the circuit breakers. 3. Connect the circuit breakers as required and connect the necessary wiring...

Remote Actuator Unit (RAU) for DD-Frame (D7) The RAU Operation 1. RAU initial conditions • • • • • RAU in OFF position Actuation signal OFF Supply voltage ON LED flashes 3 times RAU manual operation possible 2. Operations in PULSE mode ( The LED is ON) • • Apply a pulse signal, the RAU will actuate ON Apply another the pulse signal, the RAU will actuate to the OFF position 3. Operations in CONSTANT mode ( The LED is always OFF) • Apply a constant signal, the RAU will actuate ON • Remove the constant signal and the RAU will switch OFF 4. Changing Mode Use a small tool to slide the front...

Remote Actuator Unit (RAU) for DD-Frame (D7) LED Status Indication Confirmation LED State Flash 3 times Flash 3 times every 4 seconds ON OFF 2 Short flash & 1 long flash Indication Initialisation Fault state Pulse actuation signal mode Constat actuation signal mode Initialisation fault Application Notes: RAU powered from Negative DC Bus The DD-frame RAU requires a positive supply voltage between 18 Vdc and 80 Vdc to operate, however, systems may only have a negative voltage supply available. The RAU is able to accommodate such environments. Figure 1 shows an example of an RAU in a...

Remote Actuator Unit (RAU) for DD-Frame (D7) Using the Signal Out Signal out can have many functions and is not just an auxiliary contact to indicate the open / closed state of the circuit breaker. The signal out function will depend on its specific application. This application note will convey the function of signal out for various applications under resistive loads only. The signal out contact is connected only to the adjacent pole LOAD side and is isolated from the control. Note that the signal out will vary depending on the type of load and will need to be taken into consideration when...