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2222

 

Switchmode power supply

 

  • 230 or 115 VAC primary voltage
  • 24 VDC output voltage
  • Double isolation by 3.75 kVAC
  • 48 Watt output power, short circuit-protected
  • Thermal protection against overload
  1. Overview

  2. Technical details

  3. Accessories


Advanced features

  • The power supply is based on primary switchmode technology to achieve a high efficiency.
  • An internally mounted potentiometer allows for a ±5% adjustment of the output voltage.

Application

  • General 24 VDC supply for equipment that requires a stabilised DC voltage.
  • Two units can be connected in series to achieve a plus / minus supply or a higher output voltage.
  • Separation of circuits in safety installations according to the PELV/SELV norm.
  • Galvanic isolation between the primary and the secondary voltage is achieved through the double-isolated safety transformer.

Technical characteristics

  • A green LED in the front of the module indicates an active primary voltage.
  • Input circuit protected with a 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. 210 g

Common specifications

Supply

Fuse 1 A SB / 250 VAC
Max. required power 60 VA

Isolation voltage

Isolation voltage, test / working 3.75 kVAC / 250 VAC
PELV/SELV IEC 61140
Effect of supply voltage change < 1% (±10%)
Efficiency ≥ 80%
Thermal overload protection 100°C
Power derating 1% / °Camb. (Tamb. > 40°C)
Transient stability (10%-max. load) < 500 mV
Temperature coefficient 0.05% / °C
EMC immunity influence < ±0.5%

Input specifications

Supply voltage 207...253 VAC 102.4...132.2 VAC
Frequency 50...60 Hz

Output specifications

Current output

Current limit Nom. 2.5 A (electronic)
Output voltage 24 VDC
Adjustment ±5%
Output power 48 W (max.)
Output current 2 A / 24 VDC
Load effect, (0-max. load) < 1.5% / A
Output ripple ≤ 40 mVRMS (100 kHz)

Observed authority requirements

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