Power Supplies MA - Power Supplies

The MA 4804, MA 4852 and MA 4853 are power supply units with the built-in nsformers permiting a continuous voltage adjustment within the limits of declared specifications. The transformers have separate primary and secondary windings resulting in galvanic isolation of the mains circuit from output circuit. frequent requirement for energizing specific variable traThis is V-meter and A-meter, circuit-breaker whiinsulateds. Test voltage of 4kV a.c. rms between input and output enables using the units in electrical devices.The power supply units are equipped withwhich allow a permanent control over output voltage and current. They are overload-protected with ach disconnects the secondary circuits when a short-circuit condition occurs at the output.

Field Application

The MA 4804, MA 4852 and MA 4853 power supply units are used in electronic industry (electrical and control labs), in service workshops, in technical education, etc., briefly everywhere adjustable supply voltage is needed, or where for technical or safety reasons the power supply source has to be galvanically from the main CAT III 300 V environment.

Characteristics

MA 4804 is a source of adjustable a.c. voltage from 0 to 245 V, with permissible permanent load of 3.1 A. The unit contains special circuit to prevent high inrush current. MA 4852 is a low-voltage source of a.c. and d.c. voltage. The d.c. voltage can be adjusted in the range of 0 to 46 V and a.c. voltage from 0 to 33 V. The permissible total current load is 6 A. The power supply unit has a built-in C filter for filtering out d.c. voltage. MA 4853 is a power supply unit with improved characteristic of MA 4852. A CLC filter is incorporated for d.c. output voltage smoothing. MA 4804 MA 4852MA 4853

Technical specifications

Load/overload characteristics

Part No. MA 4804MA 4852MA 4853

MA 4804

Power supply:230 V, 50-60 Hz230 V, 50-60 Hz230 V, 50-60 HzOutput voltage:a.c. voltage0
I out % ¸ 245 V (230 V)*0 ¸ 33 V (30 V)*0 ¸ 33 V (30 V)*d.c. voltage-0 ¸ 46 V (32 V)*0 ¸ 46 V (32 V)*Maximum continuous permanent currents:3.1 A6 A (d.c.
I N 3.1 A + a.c.
ef )6 A (d.c. + a.c.
ef )Ripple of the d.c. output:<15 V
01002003000.11101001000 pp (I=6 A)<200 mV
pp (I= 6 A)<3.5 V
t (min) pp (I=1 A)<30 mV
pp (I= 1 A)Operating temperature range:-5
I out %

MA 4852, MA 4853

¸ +40 °C-5 ¸ +40 °C-5 ¸ +40 °C Dimensions (w x h x l):228 x 216 x 210 mm228 x 216 x 210 228 x 216 x 210 Weight:11 kg8.2 kg9.1 kg* at rated output current
3 mmmm
33 ACDC I N 6 A 01002003000.010.1110100 t (min)

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