BFTM-3 UNITED AUTOMATION United Automation, BFTM-3, Thyristor Trigger Module, 97 x 94 x 73mm
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| Producent | UNITED AUTOMATION | | Part Number | BFTM-3 (BFTM3) |
| Specifications | United Automation, BFTM-3, Thyristor Trigger Module, 97 x 94 x 73mm |
| Unit Price | 116,93 EUR |
| Minimum Order Quantity | 1 |
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| Description | Dimensions97 x 94 x 73mm Height73mm Length97mm Maximum Operating Temperature+65 °C Minimum Operating Temperature0 °C Mounting TypeDIN Rail Width94mm Product Details Burst Firing Trigger Modules, BFTM - United Automation Burst firing trigger module for driving both triacs & thyristors. Single & 3-phase versions available. Zero voltage switchingOpto-isolated outputsVoltage or manual potentiometer controlLED indication of outputTop hat or G profile DIN-rail mounting Supply either 240V 50/60Hz 1.2VA or 15V to 32Vdc 20mA max Signal span 2V to 30Vdc Zero offset 0 to 30% of span Trigger current output 250mA max continuous or 1.0A for 10ms Isolation to output 7500V peak Line voltage of driven thyristors 100V to 440Vac Operating temperature range -10°C to +60°C Trigger Modules Phase Angle Firing Features In each mains half-cycle the duration of thyristor or triac conduction is determined by the firing instant, relative to mains polarity changeover. Once switched on, the driven thyristors conduct power to the load until the end of each applied half-cycle, resulting in a chopped sine wave output. A ramp and pedestal input circuit, allowing variation of firing phase angle, enables more power through the load with increasing conduction angle. Step changes in load current generate Radio Frequency Interference (RFI). In sensitive applications this interference must be suppressed to comply with the relevant EMC standards or to prevent interaction with other components. This can be achieved by the addition of EMC mains filter networks. In repeating 1 second periods the number of complete mains sine waves is varied in its ON/OFF ratio, or duty cycle. The burst firing circuit provides trigger pulses coincident with the mains zero polarity changeover ensuring only complete half cycles are passed through to the resistive loads. Virtually no Radio Frequency Interference (RFI) is produced. Burst Firing Features |
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