Senseca ATEX A-U1-2 Switching Unit

Switching Head A-U1-2DimensionsFor device NW1Handling and operation● I M1 Ex ia I ● II 1G Ex ia IIC T4 ● II 1D Ex iaD 20 T135Characteristics Intrinsically safe switching unit with reed switch and ATEX approval,for the NW1 range of devices, for use in intrinsically safe power circuits.Technical data Switch Medium temperature Ambient temperature Weight WiringOrdering codereed switch -20..+110 ℃The base device is ordered e.g. NW1-020HMA with switching head A-U1-2.-20..+50 ℃1.0.05 kg additionally normally opened (n.o.) or normally closed (n.c.), no. 0.4421 Switching voltage Switching current Switch performance Protection classIngress protection Electrical connection● For use only in intrinsically safe power circuits Provide a suitable isolating amplifier.● Cable lengths max. 5 m.● It must be ensured that the values given for voltage, current, and power are not exceeded.● When switched on, a load must be connected in series.● The electrical details apply to ohmic loads. Capacitive, inductive and lamp loads must be operated using a protectivecircuit.21A-U1 - 21. Device series 2 For NW12max. 30 V max. 1 A max. 50 W 3IP 65 cable 2.5 m, other cable lengths up to max.5 m are optionally availabledsh_fam_a-u1-2_en_vs011