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  Thyristors (828 items)

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United Automation FC11BL/2, Burst Firing Module / 2329369 (1 offer) 
25A Burst Firing Module, FC11BL2. Single phase Burst Firing modules which provide trigger pulses coincident with the mains polarity crossover, ensuring complete sine waves are passed through the re...
United Automation
FC11BL/2
from £ 65.401*
per piece
United Automation FC36M, Thyristor Trigger Module / 2329347 (2 offers) 
Phase Angle ; Burst Firing Three-Phase, FC36M. A microprocessor based thyristor firing control PCB with both Phase Angle and Burst Firing options. Suitable for ac/dc resistive/inductive loads, via ...
United Automation
FC36M
from £ 270.34*
per piece
United Automation MAT, Thyristor Trigger Module / 4893480 (1 offer) 
Manual Phase Angle Triac Trigger Module, MAT. Variable phase angle trigger module for ac loads. Inclusive manual control potentiometer and minimum setpoint trimmer Industrial panel mounted enclosur...
United Automation
MAT
from £ 25.27*
per piece
United Automation PAC-2, Thyristor Trigger Module / 3796518 (2 offers) 
25A Phase Angle Power Controller, PAC2. A single phase, compact ac phase angle power controller capable of regulating loads up to 6kW. Controls the amount of power to the load via a remote 0-5V pro...
United Automation
PAC-2
from £ 56.419*
per piece
United Automation PATFC, Firing Circuit Commander Module / 4893503 (1 offer) 
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 pote...
United Automation
PATFC
from £ 23.568*
per piece
United Automation PR1-DIN-2.5KW, HVAC Power Regulator 11A / 493077 (1 offer) 
2.5kW Burst Fire HVAC Power Regulator. 2.5KW compact (module only) Integral heat sink for maximum power capability Single Phase 230/240Vac Input Voltage 0 to 10Vdc Control Input Solid State Control...
United Automation
PR1-DIN-2.5KW
from £ 56.092*
per piece
United Automation PR1-E-3KW, HVAC Control 12.5A / 4893547 (1 offer) 
Single-phase units do not include failsafe alarms. PRx-E series 1 ; 3-Phase HVAC Controllers. The PRx-E thyristor stack units provide full seamless control of 1/3-phase resistive loads. Burst-firin...
United Automation
PR1-E-3KW
from £ 127.216*
per piece
United Automation PR1-E-6KW, HVAC Control 25A / 4893553 (1 offer) 
Single-phase units do not include failsafe alarms. PRx-E series 1 ; 3-Phase HVAC Controllers. The PRx-E thyristor stack units provide full seamless control of 1/3-phase resistive loads. Burst-firin...
United Automation
PR1-E-6KW
from £ 158.535*
per piece
United Automation PR3-DIN-12kW, Burst Fire Power Controller 16.7A / 1221377 (1 offer) 
PR3-DIN 3-phase Burst-fire Power Controllers. Thyristor power control modules from United Automation which can provide seamless control of three phase electric heating loads from a suitable BMS or ...
United Automation
PR3-DIN-12kW
from £ 139.336*
per piece
United Automation PR3-DIN-18kW, Burst Fire Power Controller 25A / 1221378 (1 offer) 
PR3-DIN 3-phase Burst-fire Power Controllers. Thyristor power control modules from United Automation which can provide seamless control of three phase electric heating loads from a suitable BMS or ...
United Automation
PR3-DIN-18kW
from £ 167.364*
per piece
United Automation PR3-E-12KW, HVAC Control 17A / 4893569 (1 offer) 
Single-phase units do not include failsafe alarms. PRx-E series 1 ; 3-Phase HVAC Controllers. The PRx-E thyristor stack units provide full seamless control of 1/3-phase resistive loads. Burst-firin...
United Automation
PR3-E-12KW
from £ 276.151*
per piece
United Automation PR3-E-18KW, HVAC Control 25A / 4893575 (1 offer) 
Single-phase units do not include failsafe alarms. PRx-E series 1 ; 3-Phase HVAC Controllers. The PRx-E thyristor stack units provide full seamless control of 1/3-phase resistive loads. Burst-firin...
United Automation
PR3-E-18KW
from £ 301.315*
per piece
United Automation PR3-E-6kW, HVAC Control 8A / 9196245 (1 offer) 
Single-phase units do not include failsafe alarms. PRx-E series 1 ; 3-Phase HVAC Controllers. The PRx-E thyristor stack units provide full seamless control of 1/3-phase resistive loads. Burst-firin...
United Automation
PR3-E-6kW
from £ 204.421*
per piece
United Automation PSR-25, Thyristor Power Controller 25A / 841924 (2 offers) 
Select for use a plastic housed potentiometer with a plastic shaft. 25A High Power, PSR-25 and TPSR-25 with Thermistor option. Full wave ac phase-angle controller capable of regulating loads up to ...
United Automation
PSR-25
from £ 34.54*
per piece
United Automation QLC-TB-RFI, AC Regulator with RFI Suppression / 2143957 (1 offer) 
10A Variable ; Switched ac Regulator with RFI Suppression, QVR/RFI and QLC/RFI. QVR/RFI: Variable min to max operation,QLC/RFI: Switched variable potentiometer. Compact, robust, phase angle power r...
United Automation
QLC-TB-RFI
from £ 62.546*
per piece
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* Prices with asterisk are net prices excl. statutory VAT.
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