Redundant Power Feed Module KFD2-EB2.R4A.B

Datasheet excerpt: Technical data of  KFD2-EB2.R4A.B

Supply
Connection		terminals 11+, 12- terminals 8+, 9-
Rated voltage		20 ... 30 V DC The maximum rated operating voltage of the devices plugged onto the Power Rail must not be exceeded.
Fusing		5 AT/250 V AC recommended 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) (W x H x D) , 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 IEC 60079-0:2018+AC:2020 , EN 60079-15:2010
International approvals
FM approval
	Control drawing	116-0160
UL approval		E106378
CSA approval		CoC 1051840
IECEx approval
	IECEx certificate	IECEx UL 16.0051X
	IECEx marking	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.pepperl-fuchs.com.

Classifications

Documents: KFD2-EB2.R4A.B

CAD+CAE: KFD2-EB2.R4A.B

Approvals+Certificates: KFD2-EB2.R4A.B

Associated Products: KFD2-EB2.R4A.B

Matching System Components
UPR-03 Universal Power Rail 35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 2 m (6 foot), simple to customize to application space, Eliminates daisy-chainspa
UPR-03-S Universal Power Rail 35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 0.8 m (2.6 ft), simple to customize to application space, Eliminates daisy-chainspa
UPR-03-M Universal Power Rail 35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 1.6 m (5 foot), simple to customize to application space, Eliminates daisy-chainspa
UPR-05 Universal Power Rail 35 mm DIN mounting rail with 5-conductor insert, Provides DC supply voltage and the bus connection to all equipped K-System modules, Standard length 2 m (6 foot), simple to customize to application space, Eliminates daisy-chainspa
UPR-05-S Universal Power Rail 35 mm DIN mounting rail with 5-conductor insert, Provides DC supply voltage and the bus connection to all equipped K-System modules, Standard length 0.8 m (2.6 ft), simple to customize to application space, Eliminates daisy-chainspa
K-DUCT-GY-UPR-03 Profile Rail Cable trunking with integrated Power Rail UPR-03, Safe spacious separation of field and control signals, No additional cable guides necessary, Provides DC supply voltage to all equipped K-System modules, Standard length 1.8 m (5.8 ft), simple to customize to application space, With end caps UPR-E, cover and mounting aidspa
K-DUCT-GY-UPR-05 Profile Rail Cable trunking with integrated Power Rail UPR-05, Safe spacious separation of field and control signals, No additional cable guides necessary, Provides DC supply voltage and the bus connection to all equipped K-System modules, Standard length 1.8 m (5.8 ft), simple to customize to application space, With end caps UPR-E, cover and mounting aidspa
K-DUCT-BU-UPR-03 Profile Rail Cable trunking with integrated Power Rail UPR-03, Safe spacious separation of safe and hazardous signals, No additional cable guides necessary, Provides DC supply voltage to all equipped K-System modules, Standard length 1.8 m (5.8 ft), simple to customize to application space, With end caps UPR-E, cover and mounting aidspa
K-DUCT-BU-UPR-05 Profile Rail Cable trunking with integrated Power Rail UPR-05, Safe spacious separation of safe and hazardous signals, No additional cable guides necessary, Provides DC supply voltage and the bus connection to all equipped K-System modules, Standard length 1.8 m (5.8 ft), simple to customize to application space, With end caps UPR-E, cover and mounting aidspa
Accessories
KF-ST-5GN Terminal Block 3-pin screw terminal, For KF modules of K-System, Packaging unit: 5 pieces greenpa
KF-CP Coding Pins Coding of K-System terminal blocks, Coding of LB/FB-System front sockets, Packaging unit: 20 x 6 coding pinspa

Function: KFD2-EB2.R4A.B

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.