using D Doepke » residual current display using 10x LED display» Residual current Transformer» Adjustable pre-alarm» Applications up to 630 A

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1 oepke The experts in residual current protection technology g n i r o t i n o m idual current es / using» residual current display using 10x LE display» esidual current Transformer» Adjustable pre-alarm» Applications up to 630 A

2 oepke o you know the difference? (esidual urrent evices) are residual current protection devices. This product group includes B, BO, B and. All of these devices B esidual current circuit breaker BO B + B B ircuit breaker with residual current protection are able to detect a residual current, and in case of failure, to disconnect the monitored circuit from the voltage source. This results in the shutdown required in accordance with VE These devices are required and recommended ifferential current monitoring device in many areas (VE ). odular residual current device An (residual current monitor) works differently. An is only able to detect and to signal the existence of differential current. There is no shutdown in the event of a fault, just a warning of the fault. These devices do not belong to the product group. Standards differentiate between and and thus determine their use. oepke modular residual current device oepke residual current monitor Product features reflect the characteristics and standard designations.

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4 S i mi l ari t ie s b e twe e n a n d With both the and the, In conjunction with T and T the electrical system is constantly B+ series external residual current monitored. Using a 10x LE display, transformers, rated currents of up to the size of the residual current and 630 A can be monitored in systems. the differential current can be shown The residual current transformers are and identified. If the adjustable available up to a diameter of 210 mm. pre-alarm threshold is exceeded, a volt-free contact is activated. The possibility of having a prealarm provides many advantages for the device operator. and are available as type A (pulsating A/-sensitive) and type B+ (A/-sensitive). Both series are mains voltage-dependent. [ Adjustable rated residual current [ Setting for pre-alarm threshold between % [ Adjustable delay time [ Test key [ isplays: operating display, prealarm and alarm display [ Wire break and short circuit notification by means of flashing code

5 oepke Pre-alarm and protection combined to form modular residual current device The modular residual current devices 1A and 1B+ provide safety and ease of use. Using these devices instead of a means that there is adequate protection if a circuit breaker is also used, thus meeting the requirements of an as per VE and VE The combination of the and a oepke-approved circuit breaker ensures a shutdown within 40 ms when the measured residual current is fi ve times the norm so that the requirements for the "Protection by automatic disconnection of the power supply" can be met. So many similarities, but these are things to look out for: An is used only as an alternative for applications where the residual current devices (s) cannot be used because the operating current of the protected circuit is greater than the maximum rated current of the residual current device (). Only then can differential current monitoring () as per IN EN (VE 0663) be used as an alternative, together with a documented risk assessment. The application of a also extends to electrical machines, in which an abrupt shutdown could cause damage to the machine or workpiece. In this case a risk assessment must also be carried out in advance, as per the achinery irective IN VE , for example. Application areas [ etalworking and machinery [ Food processing machinery [ onstruction and building material machines [ Plastics and rubber machines [ Printing, paper and board machines [ otorised doors/gates [ easurement and testing equipment [ Woodworking machinery [ achines for hot metal processing [ ompressors [ Assembly machines [ ining and quarrying equipment [ Packaging machinery [ onveyor systems [ Handling equipment [ Agricultural and forestry machinery [ Laundry machines [ Textile machinery [ Transportable machines [ efrigerators and conditioner machines [ Portable machines [ Leather/faux leather and shoe machines [ achines for passenger transport and recreational equipment [ Heating and ventilation equipment [ Tanning machines [ Pumps [ Hoists

6 ifferential current monitoring device odular residual current device Voralarm Alarm N L1 L2 L3 PE Voralarm N L1 L2 L3 PE Leistungsschalter Wandler Wandler EV-Filter EV-Filter FU FU There is a pre-alarm and an alarm. The system is not shut down.. 3 ~ A pre-alarm is triggered, but the system is not shut down. A shutdown occurs only once both the alarm has been triggered and the circuit breaker has been tripped. 3 ~ Benefits for the system operator When traditional residual current devices the electrical system is shut down electrical system or stop production (s) are used for system protection, immediately when the is tripped. processes and then turn off the For manufacturing companies, system so that the system fault oepke Schaltgeräte GmbH Stellmacherstraße Norden, Germany Tel Fax info@doepke.de this type of failure is a financial risk, because the resulting downtime and batch failures may incur unforeseen costs. Installing a pre-alarm is recommended, because when the or reaches the pre-alarm threshold, no shutdown occurs. A system fault is thus detected at an early stage and the operator has the option to shut down the can be located and corrected. The modular residual current device is a product that offers many advantages for electrical equipment, operators and machinery manufacturers. An, combined with a prealarm, provides very safe and reliable protection for people and systems. Art. No V 05/2012 oepke Schaltgeräte GmbH Technical specifications subject to change.