Signal Conditioners

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Relay Module KFD2-RSH-1.2E.L2

1-channel signal conditioner
24 V DC supply
Logic input 19 V DC ... 26.4 V DC
Recommended connectable voltage 8 V DC ... 60 V DC
Relay contact output for energized to safe function
Line fault transparency (LFT)
Diagnostic function
Up to SIL 3 acc. to IEC/EN 61508

Technical Data
Details
Informative Literature
Product Documentation
Design / Simulation
Approvals
Associated Products

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of KFD2-RSH-1.2E.L2

General specifications
Signal type		Digital Output
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 3
Systematic capability (SC)		SC 3
Supply
Connection		Power Rail or terminals 14+, 15-
Rated voltage		19 ... 26.4 V DC
Input current		max. 35 mA at 24 V DC , max. 44 mA at 19 V DC , with enabled internal fault detection
Power consumption		< 1.7 W , includes the power consumption of the digital input , see derating curves
Input
Connection side		control side
Connection		terminals 7+, 8-
Pulse/Pause ratio		min. 150 ms / min. 150 ms with disabled internal fault detection min. 1 s / min. 1 s with enabled internal fault detection
Test pulse length		max. 2 ms from DO card
Signal level		0-signal: -5 ... 5 V DC 1-signal: 19 ... 26.4 V DC
Rated current		0-signal: typ. 1.6 mA at 1.5 V DC; typ. 8 mA at 3 V DC (maximum leakage current DO card) 1-signal: ≥ 36 mA (minimum load current DO card)
Inrush current		< 200 mA after 100 µs
Output
Connection side		field side
Connection		external voltage : terminals 5+, 2- load : terminals 6, 3
Connectable voltage		8 ... 60 V DC
Power dissipation		< 3.3 W at 5 A , see derating curves
Contact loading		30 V DC / 5 A resistive load , see derating curves
Minimum switch current		10 mA
Mechanical life		5 x 10⁶ switching cycles
Line fault detection		low voltage < 5 V DC undercurrent: 10 mA DC; overcurrent: 2.2 A DC (relay energized) breakage: 8.2 kΩ; short-circuit: 11 Ω (load, relay de-energized)
Fault indication output
Connection		terminals 10, 11
Contact loading		30 V DC/ 0.5 A resistive load
Reaction time		< 2 s
Mechanical life		10⁵ switching cycles
Transfer characteristics
Switching frequency		< 3 Hz with disabled internal fault detection < 0.5 Hz with enabled internal fault detection
Galvanic isolation
Input/power supply		basic insulation according to IEC/EN 61010-1, rated insulation voltage 60 V_eff
Input/fault indication output		basic insulation according to IEC/EN 61010-1, rated insulation voltage 30 V_eff
Output/other circuits		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
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 21:2017 , IEC/EN 61326-3-2:2018 , EN 61326-3-1:2017
Degree of protection		IEC 60529:2013
Protection against electrical shock		EN 61010-1:2010
Ambient conditions
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F) Observe the temperature range limited by derating, see section derating.
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 134 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
	Height	119 mm
	Width	20 mm
	Depth	115 mm
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
Certificate		PF 17 CERT 4305 X
	Marking	II 3G Ex nC ec IIC T4 Gc [device in zone 2]
Directive conformity
	Directive 2014/34/EU	EN 60079-0:2012+A11:2013 , EN 60079-7:2015 , EN 60079-15:2010
International approvals
UL approval		E106378
General information
Supplementary information		Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Classifications

System	Classcode
ECLASS 13.0	27210101
ECLASS 12.0	27210101
ECLASS 11.0	27210101
ECLASS 10.0.1	27210101
ECLASS 9.0	27210101
ECLASS 8.0	27210101
ECLASS 5.1	27210121
ETIM 9.0	EC001485
ETIM 8.0	EC001485
ETIM 7.0	EC001485
ETIM 6.0	EC001485
ETIM 5.0	EC001485
UNSPSC 12.1	39121543

Details: KFD2-RSH-1.2E.L2

Function

This signal conditioner provides the galvanic isolation between field circuits and control circuits.

The device is a relay module that is suitable for safely switching applications of a load circuit. The device isolates load circuits up to 60 V DC and the 24 V DC control circuit.

The energized to safe (ETS) function is permitted for SIL 3 applications.

An internal fault or a line fault is signalized by the impedance change of the relay contact input and an additional relay contact output.

A fault is signalized by LEDs and a separate collective error message output.

Informative Literature: KFD2-RSH-1.2E.L2

Literature	Language	File Type	File Size
Application Report - Biological Cleaning of Wastwater and Secondary Sedimentation Stage	ENG	PDF	566 KB
Application Report - Generating Electricity in Coal-Fired Power Plants	ENG	PDF	412 KB
Application Report - Sand Trap and Preliminary Sedimentation Stage	ENG	PDF	448 KB
Application Report - Screening Systems in Sewage Treatment Plants	ENG	PDF	577 KB

Product Documentation: KFD2-RSH-1.2E.L2

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	149 KB
Functional Safety Manual	ENG	PDF	1994 KB
Manuals
System Manual	ENG	PDF	3694 KB

Design / Simulation: KFD2-RSH-1.2E.L2

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	2510 KB
CAD Portal / CAD Portal	ALL	LINK	---
CAE
CAE EPLAN Data Portal / CAE EPLAN Data Portal	ALL	LINK	---
CAE EPLAN macro EDZ / CAE EPLAN Makro EDZ	ALL	EDZ	1526 KB

Approvals: KFD2-RSH-1.2E.L2

Certificates	Certificate No.	Language	File Type	File Size
DNV Marine	TAA00001WX	ALL	PDF	106 KB
Europe Pepperl+Fuchs ATEX Category 3	PF17CERT4305X	ALL	PDF	191 KB
USA Canada UL Hazardous Location Certificate of Compliance cULus UL E106378	CoC E106378 RepRef E106378-20181213	ALL	PDF	348 KB
Worldwide TUV Rheinland Functional Safety Certificate	TÜV Rheinland Certificate 968/FSP 1538.01/20	ALL	PDF	650 KB
cULus	2018-11-22-E223772	ALL	PDF	266 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)	DOC-3653C	ALL	PDF	75 KB

Associated Products: KFD2-RSH-1.2E.L2

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Accessories

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Triple Protection

Pepperl+Fuchs is setting a new level of reliability with newly developed safety relays. With multi-redundant switching contacts, the interface module from the tried-and-tested K-System provides reliable and safety-related activation and deactivation for applications in accordance with IEC61508 up to SIL 3.

Pepperl+Fuchs SE
Lilienthalstraße 200
68307 Mannheim
Germany
info@de.pepperl-fuchs.com
phone +49 621 776-0

Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.