Senseca A-U1-1 Switching Unit Atex

Switching Unit AtexSwitching Head A-U1-1DimensionsFor device UR1Handling and operation ● I M1 Ex ia I Ma ● II 1G Ex ia IIC T4 Ga ● II 1D Ex IIIC T135°C DaCharacteristics Intrinsically safe switching unit with reed switch and ATEX approval,for the UR1 range of devices, for use in intrinsically safe power circuits.Technical data Switch Medium temperature Ambient temperaturereed switch -20..+110 °CWeight Wiring0.05 kg additionally normally open (n.o.) or normally closed (n.c.), no. 0.442-20..+50 °CNote ● 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 protective circuit.Adjustment Loosen bolt(s), push the switching current tube into the desiredposition. Retighten the bolt(s).Normally closed (n.c.) or normally opened (n.o.) as per table "Technical data"Ordering code The base device is ordered, e.g. UR1-015GMA with switching head A-U1-1.1.A-U1 - 1 1 1 2 2 Switching voltage max. 30 V Switching current max. 1 A Switching capacity max. 50 WProtection class 3 Ingress protection IP 65 Electrical cable 2.5 m, other cable lengths up to max.connection 5 m are optionally availablepi-ho_ze-a-u1_e V1.03-021.Device series 1 for UR11