• 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
  1. Overview + -

  2. Technical details + -

  3. Accessories + -

Advanced features

  • Two transformers may be paralleled for higher output power.


  • 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.

Data sheet & Manuals

Data sheet


Supplementary documentation

EU Declaration of Conformity

Safety note

Safety note

Approvals & Certificates

EAC declaration

Metrology Pattern Approval (MPA), Russia

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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