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2223

 

Dual switchmode power supply

 

  • 24 / 115 / 230 VAC supply voltage
  • 3.75 kVAC isolation
  • 2 adjustable 5...24 VDC outputs
  • Output: ±5...24 VDC, 10...48 VDC
  • Short-circuit protection
  • Thermal protection against overload
  1. Overview +

  2. Technical details +

  3. Accessories +


Advanced features

  • The power supply is based on switch mode technology to achieve a high efficiency.
  • The outputs are adjustable by 2 front potentiometers in the ranges 5...24 VDC.

Application

  • Supply for small measuring systems that demand 2 stabilized voltages.
  • Either as a combination of positive and negative voltages, or as 2 separate supplies as required.
  • The two supplies are galvanically separated with 500 VAC test voltage and can be connected in series or used as two independent supplies with or without common gnd. 
  • Separation of circuits in safety installations according to PELV/SELV.
  • Galvanic isolation between the primary and the secondary voltage is achieved through the double-isolated safety transformer.

Technical characteristics

  • Two green LEDs, Power ON 1 and Power ON 2, indicate active outputs.
  • By connecting the two outputs in series, 10...48 VDC or ±5...24 VDC can be achieved.
  • The input circuit is protected with a bimetal thermal fuse.
  • DC output short circuit protection with current limiter.
  • Mounting for a standard 11-pole socket which can be adapted for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying.

Environmental Conditions

Operating temperature -20°C to +60°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP30

Mechanical specifications

Dimensions (HxWxD) 80.5 x 35.5 x 84.5 mm (D is without pins)
Weight approx. 400 g

Common specifications

Supply

Internal power dissipation 4 W

Isolation voltage

Isolation voltage, test / working 3.75 kVAC / 250 VAC
Isolation output 1 / 2, test / working 500 VAC / 50 VAC (75 VDC)
PELV/SELV IEC 61140
Effect of supply voltage change < ±30 mV (±10%)
Transformer EN 60742
Transient stability (10%-max. load) < 250 mV
Temperature coefficient 0.05% / °C
EMC immunity influence < ±0.5%

Input specifications

Supply voltage 21.6...26.4 VAC 103.5...126.5 VAC
207...253 VAC
Frequency 50...60 Hz

Output specifications

Current output

Current limit Typ. 100 mA (short circuit)
Output voltage 4.75...25.2 VDC
Output power Max. 7.5 W (total)
Output current, per channel 0.5 A / 5 VDC (2.5 W) 0.37 A / 12 VDC (4.5 W)
0.30 A / 15 VDC (4.5 W)
0.18 A / 24 VDC (4.3 W)
Load effect (10%-max. load) < 1.5% / A
Output ripple < 20 mVRMS

Observed authority requirements

EMC 2014/30/EU
LVD 2014/35/EU
EAC TR-CU 020/2011
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