KFD2-SR2-EX2.W : KFD2SR2EX2W Specification

Alternative Part Number: 

132960

Manufacturer: Pepperl + Fuchs

Pricing Unit: Each

Weight: 0.160 kg(each)

Tariff code: 85389099

KFD2-SR2-EX2.W

132960

Features

• 2-channel isolated barrier

• 24 V DC supply (Power Rail)

• Dry contact or NAMUR inputs

• Relay contact output

• Line fault detection (LFD)

• Reversible mode of operation

• Up to SIL2 acc. to IEC 61508

Your benefits

This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe area.

The proximity sensor or switch controls a form C changeover relay contact for the safe area load. The normal output state can be reversed using switches S1 and S2. Switch S3 is used to enable or disable line fault detection of the field circuit.

During an error condition, the relays revert to their deenergized state and the LEDs indicate the fault according to NAMUR NE44.

A unique collective error messaging feature is available when used with the Power Rail system.

Technical Data
General Specifications
Signal type	Digital Input
Supply
Connection	Power Rail or terminals 14+, 15-
Rated voltage	20 ... 30 V DC
Ripple	≤ 10 %
Rated current	≤ 50 mA
Power loss	1 W
Power consumption	< 1.3 W
Input
Connection	terminals 1+, 2+, 3-; 4+, 5+, 6-
Rated values	acc. to EN 60947-5-6 (NAMUR)
Open circuit voltage/short-circuit current	approx. 8 V DC / approx. 8 mA
Switching point/switching hysteresis	1.2 ... 2.1 mA / approx. 0.2 mA
Line fault detection	breakage I ≤ 0.1 mA , short-circuit I > 6 mA
Pulse/Pause ratio	≥ 20 ms / ≥ 20 ms
Output
Connection	output I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12
Output I, II	signal, relay
Minimum switch current	2 mA / 24 V DC
Energized/De-energized delay	approx. 20 ms / approx. 20 ms
Mechanical life	107 switching cycles
Transfer characteristics
Switching frequency	≤ 10 Hz
Electrical isolation
Output/power supply	reinforced insulation according to IEC 61140, rated insulation voltage 300 Veff
Output/Output	reinforced insulation according to IEC 61140, rated insulation voltage 300 Veff
Directive conformity
Electromagnetic compatibility
Directive 2004/108/EC	EN 61326-1:2006
Low voltage
Directive 2006/95/EC	EN 50178:1997
Conformity
Electromagnetic compatibility	NE 21
Protection degree	IEC 60529
Protection against electric shock	IEC 61140
Ambient conditions
Ambient temperature	-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Protection degree	IP20
Mass	approx. 150 g
Dimensions	20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in) , housing type B2
Data for application in connection with Ex-areas
EC-Type Examination Certificate	PTB 00 ATEX 2080 , for additional certificates see www.pepperl-fuchs.com
Group, category, type of protection	Ex II (1) G [Ex ia] IIC, II (1) D [Ex ia] IIIC
Input	[Ex ia] IIC, [Ex ia] IIIC
Voltage Uo	10.5 V
Current Io	13 mA
Power Po	34 mW (linear characteristic)
Supply
Maximum safe voltage Um	253 V AC / 125 V DC (Attention! Um is no rated voltage.)
Output
Contact loading	253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load
Maximum safe voltage Um	253 V AC (Attention! The rated voltage can be lower.)
Statement of conformity	Pepperl+Fuchs
Group, category, type of protection	Ex II (3)G [Ex ic] IIC; [Ex nL] IIC
Input	[Ex ic] IIC; [Ex nL] IIC
Voltage Uo	10.5 V
Current Io	13 mA
Power Po	34 mW (linear characteristic)
Output
Contact loading	253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load
Statement of conformity	TÜV 99 ATEX 1493 X , observe statement of conformity
Group, category, type of protection, temperature class	Ex II 3G Ex nA nC IIC T4
Output
Contact loading	50 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load
Electrical isolation
Input/Output	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Input/power supply	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
Directive 94/9/EC	EN 60079-0:2009, EN 60079-11:2007 , EN 61241-11:2006 , EN 60079-0:2006, EN 60079-15:2005
International approvals
FM approval
Control drawing	116-0035
CSA approval
Control drawing	116-0047
IECEx approval	IECEx PTB 11.0034
Approved for	[Ex ia] IIC , [Ex ia] IIIC , [Ex ia] I




KFD2-SR2-EX2.W P+F TRANSFORMER ISOLATED AMPLIFIER