BT9404 type excitation switch control circuit

BT9404 de-excitation type switch by the CJ4-S contactors and JT3-21/3-type electromagnetic relays. Its control circuit is shown in Figure 7-55. Figure, KM contactors CJ4-S; KT

was time relay JT3-21/3; SA controls switch LW2-2-la, 4, 6a, 40, 20/F8; Hi, Hz green, red XD2, llov, 8W, additional resistance 2.5k0; SQi, SQ2 for the terminal switch.

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