EN10. TECHNICAL DATA1phase modelsKempact 181A 251R, 251AConnection voltage 1~, 50/60 Hz 230 V ±15% 1~, 50/60Hz 240V ±15%Rated power at max.current50% ED I1max (180A) 5 kVA 30% ED I1max (250A) 8.5 kVASupply current 50 % ED I1max (180A) 22 A 30 % ED I1max (250A) 36 A100 % ED I1eff (140A) 16 A 100 % ED I1eff (150A) 17 AConnection cable H07RN-F 3G1.5 (1.5 mm², 5 m) H07RN-F 3G2.5 (2.5 mm², 5 m)Fuse Type C 16 A Type C 20 AWelding range 10V/20A–26V/180A 10V/20A–29V/250ANo load voltage 36 V 36 VIdle power 35 W 35 WPower factor at max. 180 A / 23 V 0.99 250 A / 26.5 V 0.99Efficiency at100% ED140 A / 21 V 82% 150 A / 21.5 V 82%Wire feed speedadjustment range1.0–14.0 m/min 1.0–18.0 m/minVoltage adjustmentrange8.0–26.0 V 8.0–29.0 VFiller wires Fe solid 0.8…1.2 mm 0.8…1.2 mmFe cored wires 0.8…1.2 mm 0.8…1.2 mmSs 0.8…1.2 mm 0.8…1.2 mmAl 1.0…1.2 mm 1.0…1.2 mmBrazing 0.8…1.0 mm 0.8…1.0 mmWire spool max 300 mm / 20 kg 300 mm / 20 kgShielding gases CO₂, Ar, Ar+CO₂ mixed CO₂, Ar, Ar+CO₂ mixedExternal dimensions L x W x H 623 x 579 x 1070 mm L x W x H 623 x 579 x 1070 mmWeight Not including gun andcables44 kg Not including gun andcables44 kgTemperature class F (155 °C) F (155 °C)EMC class A ADegree of protection IP23S IP23SOperatingtemperature range–20…+40 °C –20…+40 °CStorage temperaturerange–40…+60 °C –40…+60 °CStandards IEC 60974-1 IEC 60974-1IEC 60974-5 IEC 60974-5IEC 60974-10 IEC 60974-10IEC 61000-3-12 IEC 61000-3-12Kempact 251R, 253R, 323R, 181A, 251A, 253A, 323A36