• RMA Associates

Electronic Circuit Breaker

Availability and safety of production equipment are paramount in modern manufacturing plants. However, DC 24 V switch-mode power supplies, which are widely used in industry today, may stop entire plants as their self-protecting characteristics will shut down the output in the event of overload or short circuit currents with the result that one faulty load in the system can lead to complete disconnection of all loads. To overcome this problem and ensure selective disconnection with genuine physical isolation in the event of a fault (overload or short circuit) while allowing individual loads to start up, RMA Associates offers the E-T-A electronic circuit breaker, Type ESX10. This provides the means for pure electronic disconnection of machinery fitted with a safety PLC to prevent dangerous machine operation in the event of a failure, selectively and reliably. Professional over-current protection prevents undefined fault conditions, stoppages and downtime. Integration of tailor-made safety at the equipment design stage saves expensive retrofitting. Standard-compliant components facilitate global installation of customers equipment (EN60204-1, CE certification, UL 1077) The use of pre-wired E-T A power distribution systems reduces wiring and installation costs. Technical data: operating voltage ? DC 24 V (DC 18?..32 V); load disconnection ? electronic disconnection; switch-on delay ? typically 0.5s; rated current IN ? 1 A to 12 A; overload disconnection ? typically 1.1 x IN; short circuit current ICN ? 1.3 x IN to 1.8 IN (depending on IN); trip times overload circuit ? typically 3s typically 100 ms?.5s; signalisation ? LED status indication signal contact F status output SF; signal input ? remote reset remote On/Off; and manual actuation ? On/Off-button.