Transformer – PR Electronics 2240

Features

  • Double-isolated transformer
  • 3.75 kVAC isolation voltage
  • 30 VA ring core transformer
  • Thermal overload protection
  • 12 or 24 VAC secondary voltage
  • Standard 11-pole relay socket
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Advanced features

  • Two transformers may be paralleled for higher output power.

Application

  • Transformer for supply of components with 12 or 24 VAC supply voltage.
  • Transformer for stabilized DC power supplies, e.g. type 2229.
  • Suitable for PELV/SELV applications.

Technical characteristics

  • Standard primary input voltages of 115 or 230 VAC.
  • Standard secondary voltages of 12 or 24 VAC.
  • Ring core transformer with separate 3.75 kVAC isolation voltage between primary and secondary windings.
  • Fitted with a thermal fuse.
  • The device is supplied with a retention clip for a safe attachment to the relay socket.
  • 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.

Specification

ENVIRONMENTAL CONDITIONS
OPERATING TEMPERATURE -20°C TO +60°C
RELATIVE HUMIDITY < 95% RH (NON-COND.)
PROTECTION DEGREE IP50
MECHANICAL SPECIFICATIONS
DIMENSIONS (HXWXD) 80.5 X 35.5 X 84.5 MM (D IS WITHOUT PINS)
WEIGHT APPROX. 600 G
COMMON SPECIFICATIONS
Isolation voltage
ISOLATION VOLTAGE, TEST / WORKING 3.75 KVAC / 250 VAC
POWER DERATING TAMB. > 25°C, 0.4 VA/°C
EMC IMMUNITY INFLUENCE < ±0.5% OF SPAN
INPUT SPECIFICATIONS
PRIMARY VOLTAGE 207…253 VAC 97.75…132.25 VAC
FREQUENCY 50…60 HZ
OUTPUT SPECIFICATIONS
SECONDARY VOLTAGE (LOADED) 24 VAC / 1.25 A 12 VAC / 2.50 A
SECONDARY VOLTAGE (UNLOADED) 28 VAC 14 VAC
OF SPAN = OF THE PRESENTLY SELECTED RANGE
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
LVD 2014/35/EU
ROHS 2011/65/EU
EAC TR-CU 020/2011

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