bids are invited for 1 smps, 24 v dc, 10a smps, 24 v dc, 10a primary switch mode power supply unit, 24 v dc, 10a having following specification: input voltage range: 90 ¿ 264 v ac single phase, input frequency range: 47 ¿ 63 hz, output current 10 a at 24 v dc, output voltage adjustable range: 22.5 v dc to 28 v dc, degree of protection ip20, led signalling for 24 v dc ok, ambient operating temparature: -10 deg cen to +70 deg cen, din r ail mounting, having overvoltage and short circuit protection, efficiency ( typ ) should be more than 82 %.should conform to en 60950 ( standard for electrical safety ) and en 61000 ( emc standard ) . 8 ea 2 smps , 24 v dc, 20 a smps , 24 v dc, 20 a primary switch mode power supply unit, 24 v dc, 20a having following specification: input voltage range: 90 - 264 v ac single phase, input frequency range: 47 - 63 hz, output current 20 a at 24 v dc, output voltage adjustable range: 22.5 v dc to 28 v dc, degree of protection ip20, led signalling for 24 v dc ok, ambient operating temparature: -10 deg cen to +70 deg cen, din rail mounting, having overvoltage and short circuit rotection, efficiency ( typ ) should be more than 82 %. should conform to en 60950 ( standard for electrical safety ) and en 61000 ( emc standard ) . 8 ea 3 24 vdc smps 10 amps 24 vdc smps 10 amps miniature size, input three-phase 340 ~ 550vac ( dual phase operation possible ) 480 ~ 780vdc protection from over voltage, over current and short circuit cooling by free air convection, ambient 70 deg c, din rail mounted overload protection type :105 ~ 130% rated output power constant current limiting, unit will shut down after 3 sec. , re-power on to recover 8 ea 4 24 vdc smps 40 amps 24 vdc smps 40 amps miniature size, input three-phase 340 ~ 550vac ( dual phase operation possible ) 480 ~ 780vdc protection from over voltage, over current and short circuit cooling by free air convection, ambient 70 deg c, din rail mounted overload protection type :105 ~ 130% rated output power constant current limiting, unit will shut down after 3 sec. , re-power on to recover 2 ea total quantity : 26