United Automation PSR-25, Thyristor Power Controller 25A

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Subtotal (1 unit)*

£44.22

(exc. VAT)

£53.06

(inc. VAT)

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  • Plus 39 unit(s) shipping from 27 October 2025
  • Plus 39 unit(s) shipping from 27 October 2025
  • Plus 25 unit(s) shipping from 03 November 2025
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Per unit
1 - 4£44.22
5 - 9£43.42
10 - 19£41.65
20 - 49£38.20
50 +£36.26

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RS Stock No.:
841-924
Distrelec Article No.:
172-05-503
Mfr. Part No.:
PSR-25
Brand:
United Automation
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Brand

United Automation

Current Rating

25A

Power Rating

6kW

Mounting Type

Panel Mount

Dimensions

56 x 43 x 21mm

Maximum Operating Temperature

+65 °C

COO (Country of Origin):
GB

25A High Power, PSR-25 and TPSR-25 with Thermistor option


Full wave ac phase-angle controller capable of regulating loads up to 6 kW (25 A) at 230 Vac. The controller provides a variable phase-controlled output to the load dependent on the value of the potentiometer wired across connections 3 & 4. The thermistor option allows proportional control of blower speed in response to temperature. It is suitable for the regulation of fan speeds in heating, ventilation and air-conditioning systems.

Low thermal impedance and high isolation
Operates down to 100mA load current
Internal snubber

Note

Select for use a plastic housed potentiometer with a plastic shaft.

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