United Automation PSR-25, Phase Angle Power Control Module, 25 A 250 A
- RS Stock No.:
- 841-924
- Distrelec Article No.:
- 172-05-503
- Mfr. Part No.:
- PSR-25
- Manufacturer:
- United Automation
Bulk discount available
Subtotal (1 unit)*
HK$566.40
FREE delivery for orders over HK$250.00
In Stock
- 50 unit(s) ready to ship from another location
- Plus 4 unit(s) ready to ship from another location
- Plus 25 unit(s) shipping from 06 March 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 - 4 | HK$566.40 |
| 5 - 9 | HK$549.40 |
| 10 - 19 | HK$532.40 |
| 20 - 49 | HK$521.10 |
| 50 + | HK$509.70 |
*price indicative
- RS Stock No.:
- 841-924
- Distrelec Article No.:
- 172-05-503
- Mfr. Part No.:
- PSR-25
- Manufacturer:
- United Automation
Specifications
Product overview and Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | United Automation | |
| Product Type | Phase Angle Power Control Module | |
| Rated Average On-State Current Irms | 25A | |
| 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 | |
| Select all | ||
|---|---|---|
Brand United Automation | ||
Product Type Phase Angle Power Control Module | ||
Rated Average On-State Current Irms 25A | ||
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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