Dehner Elektronik CT-551 Controller Board for Cotek AE/AEK Series Inverters

When a Cotek AE or AEK series inverter loses its control board, the entire power system can go down—leaving critical loads without backup. The Dehner Elektronik CT-551 controller board is the direct replacement that restores full system control and monitoring, so your inverter operates reliably again.

Who is it for

This board is intended for service technicians, system integrators, and advanced users who maintain Cotek AE/AEK series inverters in off-grid solar installations, mobile power systems, or industrial backup applications. It is not a universal controller; it is engineered specifically for these Cotek models.

Main features

• Direct replacement for Cotek AE and AEK series inverter control boards
• Provides system control and status monitoring functions
• Internal PCB design for seamless integration into the inverter chassis
• Manufactured by Dehner Elektronik, a trusted name in power electronics
• Enhances operational control and reliability of the host inverter

Specifications

• Product type: Controller board
• Manufacturer: Dehner Elektronik
• Model number: CT-551
• MPN: CT-551
• EAN: 4251125201889
• Compatible device series: Cotek AE, Cotek AEK
• Main function: System control
• Secondary function: Status monitoring
• Integration type: Internal component
• Component category: Electronic control unit (ECU)
• Board material: Printed circuit board (PCB)
• Target equipment: Inverters, power supplies

Tips

Before installation, verify that your inverter model is listed as compatible (Cotek AE or AEK series). Disconnect all power sources and follow proper ESD precautions when handling the board. If you are unsure about compatibility, consult your inverter's service manual or contact a qualified technician.