8EControl switch, GHG 292 and control switch withmeasuring instrument, GHG 293Dimensions in mmX = fixing dimensions1 Technical data1.1 Control switch GHG 29:Control swich GHG 292Control switch GHG 293,with meas. instrument with c.t. connectionControl switch GHG 293,with mes. instrument with direct connection EC type examination certificate: BVS 14 ATEX E 125UMovement: Moving iron Ex e IIC Gb Moving coil Ex ib IIC GbMeasuring accuracy: Class 2.5 Class 1.5Overload range: 10-fold at 25 sec.25-fold at 4 sec.50-fold at 1 sec.telltale 1:1.510-fold at 5 sec.Measuring range: n / 1 A 0 - 20 mA0 - 25 A direct 4 - 20 mALi: - max. 0.1 mHCi: - max. 0.1 nFUi: - max. 30 VIi: - max. 150 mATerminals: 2 x 1.5 - 4 mm²AM 72 weight: approx. 0.40 kgMax. safe voltage Um: 690 VeffSafe galvanic isolation from all other circuits andearthMarking acc. to 2014/34/EU: II 2 G Ex d e ia II C T5/T6 T5/T6II 2 D Ex tD A21 IP66 T80° CEC type examination certificate:complete PTB 99 ATEX 1163switch base Ex 29 BVS 14 ATEX E 119Uswitch base Ex 28 BVS 14 ATEX E 076URated voltage Ex 29: up to 500 V, 50/60 HzRated voltage Ex 28: bis 690 V, 50/60 HzRated current Ex 29: up to 16 A** with rated current >12 A terminal cross section > 2.5 mm².Rated current Ex 28: up to 20 APermissible ambient temperature:Other temperatures possible with specialversions.-20° C up to +40° C (standard version)Perm.ambient temperature in original packing: -20° C to +40° CPerm. short-circuit back-up fuse: 20 A/gL at 500 VSwitching capacity Ex 29: AC 15 230 V / 6 A 400 V / 4.0 ADC 13 24 V / 2 A 230 V / 0.3 ASwitching capacity Ex 28: AC 15 230 V / 8 A 500 V / 6.0 ADC 13 24 V / 6 A 230 V / 0.4 ADesign with gold-tipped contacts:Rated voltage 24 VRated current max. 400 mADegree of protection to EN/IEC 60529: IP 66 (standard version)Insulation class acc. to EN/IEC 61140: I - with metal flangeII - plastic terminal boxes fulfil this requirementCable entries: (standard version)GHG 292 1 x M25GHG 293 with c.t. measuring instrument 1 x M32GHG 293 with directly indicated meas.instrument 2 x M32 and 1 x M25Cabel entry: M25 M32Test torque for screw in thread cable entry (Nm) 3.0 5.0Seal 1+2+3 1 2 3 min. 8.0 / 1.5 --(Ø mm/Nm) max. (1) 10.0 / 2.0 --Seal 1+2 1 2 3 min. 10.0 / 2.3 14.0 / 3.0(Ø mm/Nm) max. (1) 13.0 / 2.6 17.0 / 4.0Seal 1 1 2 3 min. 13.5 / 1.3 17.5 / 1.5(Ø mm/Nm) max. (1) 17.5 / 2.3 21.0 / 1.3Terminals (standard version): 2 x 0.5 - 2.5 mm² or 1 x 1.0 - 6.0 mm²Test torques:Cover screws 2.5 NmTerminals 2.5 NmWeight: 1 level 2 levels 3 levelsstandard version GHG 292 approx. 1.10 kg 1.25 kg 1.40 kgstandard version GHG 293 (c.t.) approx. 2.00 kg 2.15 kg 2.30 kgstandard version GHG 293 (direct) approx. 2.15 kg 2.30 kg 2.45 kg(1) The tests of clamping ranges and torque values were performed with metal mandrel. The clamping range canvary by using cables with different manufacturing tolerances and material properties. Please use a suitablecombination of seals in the intermediate area, so that the cap nut can be tightened in future maintenancework on the cable entry.1.2 AM72 measuring instrument: