Isolation amplifiers (intrinsically safe) Typ: KFD2-SH-Ex1
application: Bistable isolation amplifier with intrinsically safe control circuit class [Ex ib] IIC for
Double inductive contacts according to DIN 19234 or NAMUR or mechanical contacts in explosion-hazardous industrial plants.
technical data sheet
Approvals Case
NORYL SE 0 (self-extinguishing)
Case dimensions
B x H x T : 40 x 107 x 115 mm
Mounting
Snap mounting on rail : 35 mm to EN 50022
Weather protection
IP 20 to EN 60529
Wiring
Self-opening instrument terminals
Cable cross section : up to 2,5 mm²
Power supply
AC 85 - 253 V / 45 - 65 Hz
Power consumption
≤ 2,3 W
Inputs (intrinsically safe)
No load voltage UA0 : approx. 8,4 VDC
Short circuit current IAK : approx. 11,7 mA
Switching point
Relay energised : 2,8 mA < IS < 5,3 mA
Relay de-energised : IS <2,8 mA or ≥5,9mA
Input delay : ≤ 1 ms
Details of certificate of conformity
PTB 00 ATEX 2081
Max. voltage U0 : 9,6 VDC
Max. current IK: 19mA
Max. power Pmax : 45 mW
Ignition protection class : [Ex ia]
Explosion group : IIC
Outputs (non-intrinsically safe)
2 potential free make contact
Contact loading AC : 253 V / 1 A
: cosφ= 0,7
Contact loading DC : 24 V / 1 A
Switching rate
Max. : 5 Hz
Permissible temperatures Tmin / Tmax
Ambient temperature: - 20 ... + 60°C
Option
see technical data sheet
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