2220 SWITCHMODE POWER SUPPLY Mains voltage input Isolation 3.75 kVAC Adjustable output 5...24 VDC, max. 7 W Short-circuit protection Thermal overload protection Standard 11-pole relay socket Applications: Electrical specifications: General power supply for smaller measurement systems requiring fixed stabilised 24 VDC, or supply for any other Specifications range: sensors, transmitters or as a general variable power supply -20°C to +60°C 5 to 24 VDC. • Two units may be connected in series for plus / minus or higher output voltage. Common specifications: Internal consumption max. ................ 4 W Technical characteristics: Isolation test / operation .................... 3.75 kVAC / 250 VAC The unit is based on secondary switchmode technology Transformer ....................................... EN 60742 enabling an adjustable output with a minimum loss of Temperature coefficient ..................... 0.05% / °C power. Isolation test voltage between input and output Mains effect (±10%) .......................... < ±30 mV is 3.75 kVAC. This makes the unit suitable for PELV/SELV Transient stability (10%-max. load) ... < 250 mV applications. The double-isolated safety transformer EMC immunity influence ................... < ±0.5% includes a 100°C thermal fuse which switches off the input Relative air humidity .......................... < 95% RH (non-cond.) before the transformer is overheated. When the temperature Dimensions (HxWxD) ......................... 80.5 x 35.5 x 84.5 mm returns below 100°C the thermal fuse will automatically Tightness ........................................... IP50 switch on the power supply. Weight ............................................... 425 g Mounting: Input: The 2220 is for standard 11-pole socket mounting in all Input voltage ...................................... 21.6...26.4 VAC positions. To achieve maximum cooling, vertical position 99...121 VAC and a small distance (10 mm) between neighbouring units 108...132 VAC are recommended. 207...253 VAC Frequency .......................................... 50...60 Hz Input: Standard supply voltages in accordance with the Output: specifications. Galvanic isolation is ensured by the double- Output voltage ................................... 4.75...25.2 VDC isolated safety transformer. Output power .................................... Max. 7 W Output current ................................... 1 A / 5 VDC Output: 0.55 A / 12 VDC The output is adjustable from front potentiometer in the 0.45 A / 15 VDC range 5...24 VDC. A green LED indicates active output. 0.3 A / 24 VDC Short-circuit protection limits the current to typ. 2.2 Amp. Load effect, (10%-max. load) ............ < 1.5% / A Output is isolated by 3.75 kVAC from input. Current limit (short circuit) ................. Typ. 2.2 A Output ripple ..................................... < 20 mVRMS GOST R approval: VNIIM ................................................. Cert. no. Ross DK.ME48.V01899 Observed authority requirements: Standard: EMC 2004/108/EC Emission and immunity .............. EN 61326 LVD 73/23/EEC .................................. EN 61010-1 PELV/SELV ......................................... IEC 364-4-41 and EN 60742 Lerbakken 10 · DK-8410 Rønde Tlf. 8637 2677 · Fax 8637 3085 www.prelectronics.dk Order: 2220 Type Version Output 2220 110 VAC : A Special (5...24 V) : 0 230 VAC : B 24 VDC : 1 24 VAC : D 15 VDC : 2 120 VAC : F 12 VDC : 3 5 VDC : 4 Block diagram: Front layout: 2220Y102-UK (0612)