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