Feature 1 This product has six working modes: open, close, jog, selflock, interlock, and delay. 2 The serial port hyper terminal input can support up to 64 devices in parallel. 3 32 channel RS485 relay, maximum load is 10A/250VAC, 10A/125VAC. 4 Exquisite workmanship and small size, convenient to use and with good performance 5 Using high‑quality materials, strong and durable, has a long service lifeItem Type: 32 Channel RS485 RelayWorking Voltage: 12VWorking Current: Standby 8MA, 32 relays are open 1.15AMaximum delay 255 secondsWeight: Approx. 296 g / 10.4 ozMaximum Load: 10A/250VAC, 10A/125VACDIN Rail Box Parameters: Product Model: UM100SColor: GreenWidth: Suitable for circuit board width UM100 (Approx. 10cm / 3.9in)Insulation Grade: Flame retardant VO gradeBase Plate Length: Suitable for 19 cm circuit boardsSize: Approx.19cm / 7.5inNet Weight: Approx. 170g / 6ozInstallation Method: DIN35 and C45 rail Package List1 x 32 Channel RS485 RelayNoteRemarks: The use of 32‑channel RS485 relay and 2‑channel RS485 relay is the same (32 channels do not have AT commands)