Intrinsic Safety Barrier
Model: KCD2-SR-Ex2, make: Pepperl & Fuchs
Safety barriers is a Electronic device and Limiting the Voltage in the circuits between Field sensor and PLC Inputs
Intrinsic safety barriers from Pepperl+Fuchs limit the energy that is supplied to a circuit and protect hazardous areas from excess energy. By limiting energy to a safe level, intrinsically safe circuits prevent the ignition of potentially explosive atmospheres. This simplifies maintenance and repair of Ex i circuits.
When is Required : Every intrinsic safety device in any hazardous area must use intrinsic safety barriers. Intrinsic safety barriers are devices created to limit the voltage and current. These are the typical culprits that cause energy sparks in the signal and power conductors of a device.
Auxiliary Supply: 19-30VDC
Input: Digital Inputs (NO or NC), 2 Wires
No of Channel: Two Channel
Output: Two Relay Output (NO)
Output Control Voltage: Min 2mA/ 24VDC
Configuration: Dip switched selection channel one or Two
Protection level: Ga , Gb , Gc , Da , Db , Dc , Ma; , Mb; Device suitable for mounting in equipment protection level:; Gc;
Device provides intrinsically safe circuits for division:; Div. 1 , Div. 2; Device suitable for mounting in division: Div. 2; Safety integrity level: SIL 2;
Hazardous area to meet Zone 0, 1, 2 Div. 1, 2
Marking : 1 II 3(1)G Ex ec nC [ia Ga] IIC T4 Gc , 1 II (1)D [Ex ia Da] IIIC , 1 I (M1) [Ex ia Ma] I
Input: Ex ia
Output: Contact loading Zone 2 : 50 V AC/2 A/cos φ > 0.75; 30 V DC/2 A resistive load
Source Ref: Pepperl & Fuchs, P&F, Model No: KCD2-SR-Ex2 Switch Amplifier KCD2-SR-Ex2
Other Models: KCD2-SOT-Ex1.LB, KFD2-SOT3-Ex1.LB, KFD2-SOT3-Ex2, KCD2-SR-Ex1.LB, KCD2-SR-Ex2, KFD2-ER-Ex1.W.LB, KFD2-ER-Ex1.W.LB, KFD2-SH-Ex1.T.OP, KFD2-SOT3-Ex2.IO, KFD2-SR2-Ex1.W, KFD2-SR2-Ex1.W.LB, KFD2-SR2-Ex2.W, KFD2-SRA-Ex4, KFU8-SR-Ex1.W, KFU8-SR-Ex1.W.LB, KFU8-SR-Ex2.W, KHA6-SH-Ex1, WE 77/Ex-1 115V, WE 77/Ex-1 230V, WE 77/Ex-2 230V, KCD2-SON-Ex1, KCD2-SON-Ex1.R1, KCD2-SON-Ex1.R2, KCD2-SON-Ex1.R3, KCD2-SON-Ex2, KCD2-SON-Ex2.R1, KCD2-SON-Ex2.R2, KCD2-SON-Ex2.R3, KCD2-SOT-Ex1.LB.SP, KCD2-SOT-Ex2.SP, KCD2-SR-Ex1, KCD2-SR-Ex1.LB.SP, KCD2-SR-Ex2.SP, KCD2-ST-Ex1.LB, KCD2-ST-Ex2, KFA6-ER-Ex1.W.LB, KFD2-ELD-Ex16, KFD2-SOT3-Ex1.LB.IO, KFD2-SOT3-Ex2.IO-Y1, KFD2-SR3-Ex2.2S, WE 77/Ex-2 115V, KFA5-SOT2-Ex2