United Automation PATFC, Firing Circuit Commander Module
- RS Stock No.:
- 489-3503
- Mfr. Part No.:
- PATFC
- Brand:
- United Automation
Bulk discount available
Subtotal (1 unit)*
£20.76
(exc. VAT)
£24.91
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 34 unit(s) ready to ship
- Plus 50 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 | £20.76 |
5 - 9 | £20.64 |
10 + | £19.87 |
*price indicative
- RS Stock No.:
- 489-3503
- Mfr. Part No.:
- PATFC
- Brand:
- United Automation
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
---|---|---|
Brand | United Automation | |
Dimensions | 11 x 4 x 9mm | |
Select all | ||
---|---|---|
Brand United Automation | ||
Dimensions 11 x 4 x 9mm | ||
- COO (Country of Origin):
- GB
Phase Angle Triac Firing Circuit - United Automation
Thick film hybrid firing circuit
Gives phase control of most loads in the range 1 to 100 amps (depending on choice of triac, heat sink and potentiometer)
Gives phase control of most loads in the range 1 to 100 amps (depending on choice of triac, heat sink and potentiometer)

The number of complete mains cycles during fixed repeating periods (typically 1 to 10 seconds) is varied, thus altering the duty cycle or on-/off-time ratio. Trigger pulses coincide with the zero-crossing times of the mains supply thus ensuring no RFI is produced when using resistive loads.
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