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• 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:
General power supply for smaller measurement systems requiring fixed stabilized 24 VDC, or supply for any other sensors, transmitters or as a general variable power supply 5 to 24 VDC.
• Two units may be connected in parallel for higher output current or connected in series for plus/minus or higher output voltage.
Technical characteristics:
The unit is based on secondary switchmode technology enabling an adjustable output with a minimum loss of pow-er. Isolation test voltage between input and output is 3.75 kVAC and min. clearance and creepage distances are 6 mm, according to EN60 742. This makes the unit suitablefor PELV/SELV applications. The double insulated safety transformer includes a 100°C thermal fuse, which switches off the input before the transformer is overheated. When the temperature returns below 100°C the thermal fuse will automatically switch on the power supply.
Mounting:
The 2220 is for standard 11-pole socket mounting in all positions. To achieve maximum cooling, vertical position and a small distance (10 mm) between neighbouring units are recommended.
Input:
Standard supply voltages in accordance to the specificati-ons. Galvanic isolation is ensured by the double insulated safety transformer.
Output:
The output is adjustable from front potentiometer in the ran-ge 5...24 VDC. A green LED indicates active output. Short-circuit protection limits the current to typ. 2.2 Amp. Output is isolated 3.75 kVAC from input.
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