KFD2-EB2.R4A.B, Redundant Power Feed Module
Redundant Power Feed Module, KFD2-EB2.R4A.B Interface for Power Rail Used for redundant configuration Supply current ≤ 4 A Replaceable fuse Relay contact output, reversible LED status indication The power feed module supplies the Power Rail with a voltage of 24 V DC and a maximum current of 4 A. The device is designed for applications requiring redundant power. In the event of a device fault or a wiring fault of any isolator on the Power Rail, the collective error messaging relay alerts the controller via a binary I/O point. This relay can be configured as normally-open or normally-closed. A green LED on the front of the device indicates the power state, and a red LED lights up during a fault condition. Additionally, the bus implemented in the Power Rail is forwarded to the terminals 13 and 15 for usage with the RS-485 connection of the KFD2-WAC2-Ex1.D device. Terminal 14 is only for test purposes. In the sense of functional safety (SIL) the device provides no dangerous failures. Thereby the safe condition of the supplied isolators must be defined as the de-energized state. Thus the device will not influence the safety calculation or the SIL value. This device is compatible with all versions of the Power Rail and provides group fusing. Note: Redundant systems require 2 KFD2-EB.R4A.B power feed modules. Product Description Power feed module, redundant supply Supply Connection terminals 11+, 12-terminals 8+, 9- Rated voltage 20 ... 30 V DCThe maximum rated operating voltage of the devices plugged onto the Power Rail must not be exceeded. Fusing 5 AT/250 V ACrecommended maximum utilization of the fuse: 80 % Power dissipation ≤ 2.4 W Output Connection Power Rail Output rated operating current max. 4 A Output voltage Ui ≥ rated voltage Ur = Ui - 0.6 V Fault signal relay output: NO contact Contact loading 30 V AC/ 2 A / cos φ ≥ 0.7 ; 40 V DC/ 2 A Energized/De-energized delay approx. 20 ms / approx. 20 ms Indicators/settings Display elements LEDs Control elements DIP-switch Configuration via DIP switches Labeling space for labeling at the front Directive conformity Electromagnetic compatibility Directive 2014/30/EU EN 61326-1:2013 (industrial locations) Conformity Electromagnetic compatibility NE 21:2006 Degree of protection IEC 60529:2001 Ambient conditions Ambient temperature -20 ... 60 °C (-4 ... 140 °F) Mechanical specifications Degree of protection IP20 Connection screw terminals Mass approx. 100 g Dimensions 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2 Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001 Data for application in connection with hazardous areas Certificate TÜV 00 ATEX 1618 X Marking # II 3G Ex nA nC IIC T4 Directive conformity Directive 2014/34/EU EN 60079-0:2012+A11:2013 , EN 60079-15:2010 International approvals FM approval Control drawing 116-0160 IECEx approval IECEx UL 16.0051X Approved for Ex nA nC IIC T4 Gc General information Supplementary information Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.https://control-automation.com/. Accessories Optional accessories - universal power rail UPR-03(-M)(-S)- universal power rail UPR-05(-S)- profile rail K-DUCT-GY(-UPR-03)- profile rail K-DUCT-GY(-UPR-05)- profile rail K-DUCT-BU(-UPR-03)- profile rail K-DUCT-BU(-UPR-05)