ABB S201_B25 25A Miniature Circuit Breaker

ABB S201_B25 25A Miniature Circuit Breaker

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Cables

Direct mode – means that both channels A and B are working accordingly to PWM signals. It is possibile to switch on both channels A and B at the same time. This operation mode can be activated by setting the JP1 jumper on position marked as D-M (shorting pins 1 and 2 on Figure 3). When jumper JP1 is used there is no need to short X1.12 to GND of power supply. 

Half-bridge mode is especially usefull when IGBTs are driven in half bridge configuration. By proper selection of capacitor values C4 and C5 the required dead time between channels A and B can be provided. This operation mode can be activated by setting the JP1 jumper on position marked as H-M (shorting pins 2 and 3 on Figure 3). When jumper JP1 is used there is no need to short X1.12 to VDC. Table 8 shows how dead time depends on these capacitors value. The dead time with not connected capacitors is 1,6µs. 

ABB S201_B25 25A Technical drawing:

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