32 Channel Modbus RTU Relay Module With RS485 Interface, Isolation Protection Circuits, Industrial Rail Mount Case, Configurable Address 1 To 255, Cascadable Onboard Regulator For 7 To 36V Power, Includes Flash On Off Timing Function

32-Channel Modbus RTU Relay Module with RS485, 1 unit
✔️ Configurable address 1-255, cascadable, 7-36V input

The 32-channel Modbus RTU relay module is a rail-mountable control unit that lets you switch up to 32 relays from a single Modbus RTU master over RS485. It’s typically used in industrial automation panels, building automation, and control cabinets for HVAC, manufacturing lines, or remote devices.

✅ Configurable address 1-255 on RS485 bus
✅ Cascadable design for expanding channel count
✅ Onboard 7-36V regulator with isolated supply
✅ Isolation protections: optocoupler, magnetics, TVS, fuse
✅ Relay rating up to 10A 250VAC/30VDC
✅ Flash on/off timing function for timed control

💡 What is a modular RS485 relay board used for in automation systems? This handy module lets you manage multiple loads from a single Modbus RTU master with solid isolation and surge protection. - 32-channel relay control over RS485 Modbus RTU - isolation and surge protection for rugged industrial use - cascadable design for easy expansion of channels - rail-mount enclosure for quick installation