12V 8‑Channel RS485 Relay PLC Expansion Board for RTU Protocol Remote Control Item Type: Relay Working Voltage: DC 12V Working Current: standby 12MA, 1 relay on 40MA, 2 relays on 68MA, 3 relays on 94MA, 4 relays on 120MA, 5 relays on 148MA, 6 relays on 174MA, 7 Relay on 199MA, 8 relays on 224MA Default Baud Rate: 9600BPS Select Baud Rate through Jumper: 2400, 4800. 19200BPS Size: Approx. 100 x 72 x 20mm / 3.94 x 2.83 x 0.79in(circuit board) Approx.100 x 88 x 42mm / 3.9x 3.46 x 1.65in (box with rail) DIN Rail Box Parameters: Product Model: UM72 Color: Green Width: Suitable for circuit board width UM72 (inside 72) Insulation Class: Flame retardant VO level Base Plate Length: Suitable for 10 cm circuit board Net Weight: Approx. 72 g / 2.5 oz Installation Method: DIM35 and C45 rail Weight: Approx.120 g / 4.2 oz(circuit board) Approx.198 g / 7 oz(box with rail) Maximum Load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin