📝 Description

Used product. Original Mastervolt communication interface module for SunMaster CS15TL and CS20TL inverters, complete with electronic circuit board, metal bracket and cable glands. The SunMaster CS series manual confirms the presence of a removable communication module for MasterBus and RS485 connections and alarm wiring.

⚙️ Main Specifications

• Brand: Mastervolt.
• Reference compatibility: SunMaster CS15TL / CS20TL; documentation for the CS15TL RP / CS20TL RP series describes the same type of module.
• Interfaces: MasterBus and RS485 connectors.
• Alarm contact: COM, NO and NC terminals.
• Maximum contact rating: 30 V / 1 A, as indicated on the label.
• Construction: Electronic circuit board mounted on a metal bracket, with cable glands for cable entry.
• Installation: Removable module designed to fit into the dedicated inverter compartment.

🔌 Main Functions

• Connects the inverter to the MasterBus communication network.
• Enables communication via the RS485 interface.
• Connects an alarm signal through the COM/NO/NC contact.
• Allows multiple compatible inverters to be connected to the RS485 network, according to the manual.

🧩 Compatibility

Designed for the Mastervolt SunMaster CS15TL and CS20TL inverter family. Before purchasing, compare the module with the one installed in the inverter, checking the revision and connectors.
Warning: MasterBus and RS485 connectors may look similar, but they are not interchangeable. The Mastervolt manual warns against connecting incompatible devices directly to the MasterBus network.

🛡️ Product Condition

• Used.
• Visible signs of wear and deposits on the bracket and cable glands.
• Operation has not been confirmed by testing.
• Sold as an electronic spare part for maintenance.

📦 Package Contents

• Mastervolt communication module.
• Electronic circuit board with communication ports.
• Metal bracket and cable glands, as shown in the photographs.

🟢 Summary

Mastervolt communication module for SunMaster CS15TL/CS20TL inverters, featuring MasterBus and RS485 interfaces and an alarm contact. Suitable as a replacement part for maintenance, subject to verification against the original module.