OUTPUT:
The output is adjustable from front potentiometer in the range 5...24 VDC. A
green LED indicates active output. Short-circuit protection limits the current to
typ. 2.2 Amp. Output is isolated by 3.75 kVAC from input.
ELECTRICAL SPECIFICATIONS:
Specifications range:
-20°C to +60°C
Common specifications:
Internal consumption max.......................... 4 W
Isolation test / operation ............................ 3.75 kVAC / 250 VAC
Transformer ................................................ EN 60742
Temperature coefficient .............................. 0.05% / °C
Mains effect (±10%) ................................... < ±30 mV
Transient stability (10%-max. load) ............ < 250 mV
EMC immunity influence ............................ < ±0.5%
Relative air humidity ................................... < 95% RH (non-cond.)
Dimensions (HxWxD) .................................. 80.5 x 35.5 x 84.5 mm
Protection degree ....................................... IP50
Weight ........................................................ 425 g
Input:
Input voltage............................................... 21.6...26.4 VAC
99...121
VAC
108...132
VAC
207...253
VAC
Frequency ................................................... 50...60 Hz
Output:
Output voltage ............................................ 4.75...25.2 VDC
Output power ............................................. Max. 7 W
Output current ............................................ 1 A / 5 VDC
0.55 A / 12 VDC
0.45 A / 15 VDC
0.3 A / 24 VDC
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SWITCHMODE
POWER SUPPLY
2220
• 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 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 power. Isolation test voltage between input and
output is 3.75 kVAC. This makes the unit suitable for PELV/SELV applications. The
double-isolated 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 specifications. Galvanic isolation
is ensured by the double-isolated safety transformer.
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