The Whadda WPM400 4 channel relay interface board can control various appliances and other equipment with high current. It can be controlled directly by any micro controller. * Standard interface that can be controlled directly by any microcontroller * Opto-isolated inputs * Indicator LEDs for relay output status * Control input current (in1 to in4): 5 - 15 mA * Control input voltage: 5 - 12 VDC * Relay output: 250 VAC 10 A; 30 VDC 10 A (non-inductive) * Dimensions: 75 x 55 x 19 mm * Weight: 61 g https://elecena.pl/product/27149344/whadda-wpm400-4-channel-relay-module 2024-11-06 https://elecena.pl/product/27149344/whadda-wpm400-4-channel-relay-module 2026-06-04