United Automation PSR-25, Thyristor Power Controller 25A

View all Thyristors
Bulk discount available

Subtotal (1 unit)*

£44.22

(exc. VAT)

£53.06

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 47 unit(s) shipping from 03 October 2025
  • Plus 13 unit(s) shipping from 03 October 2025
  • Plus 25 unit(s) shipping from 30 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 - 4£44.22
5 - 9£43.42
10 - 19£41.65
20 - 49£38.20
50 +£36.26

*price indicative

Alternative

This product is not currently available. Here is our alternative recommendation.

presentation
United Automation TPSR-25, Thyristor Power Controller
RS Stock No.
841-930

Each

£42.94

(exc. VAT)

£51.53

(inc. VAT)

RS Stock No.:
841-924
Distrelec Article No.:
172-05-503
Mfr. Part No.:
PSR-25
Brand:
United Automation
Find similar products by selecting one or more attributes.
Select all

Brand

United Automation

Current Rating

25A

Mounting Type

Panel Mount

Power Rating

6kW

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.

Related links