United Automation PSR-25, Phase Angle Power Control Module, 25 A 250 A

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Subtotal (1 unit)*

€53.06

(exc. VAT)

€65.26

(inc. VAT)

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  • Plus 24 unit(s) shipping from 23 February 2026
  • Plus 25 unit(s) shipping from 06 March 2026
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Units
Per unit
1 - 4€53.06
5 - 9€52.10
10 - 19€49.98
20 - 49€45.84
50 +€43.51

*price indicative

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

United Automation

Rated Average On-State Current Irms

25A

Product Type

Phase Angle Power Control Module

Surge Current Rating

250A

Mount Type

Chassis

Minimum Operating Temperature

-20°C

Maximum Operating Temperature

65°C

Series

PSR

Standards/Approvals

I.E.T. Regulations (BS7671), EMC Directive, Low Voltage Directive (LVD)

Automotive Standard

No

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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