| Brand | CCTC |
|---|
Check the listing for details. CCTC 21402-5 System Interface Relay & Fan Control Board. Condition: Used. Listed at 36.95 USD. 🔌 Relay switching and input/output signaling coordination. 🔧 On-board fuses, resistors, and capacitor clusters for relay protection. 🧠System interface for EPO, relay signaling, or fault response. 🔄 Two CNY65 opto-isolated relay drivers.
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