Model Number:Health Gearo4xud52nsk-02 Colour:12v Package Dimensions:16.1 x 8 x 3.1 cm; 112 Grams Item Weight:112 g Features:- Adopt patch photocoupler isolation, strong driving ability, stable performance. Trigger current is 5mA.- Module operating voltage is 5V,12V,24V for choice.- Each route of the module can be triggered by the high level or low level through a jumper setting.- Fault-tolerant design,even if the control line breaks,the relay will not move.- Power indicator light (green), 8-way relay state indicator light (red).- Humanized interface design, all interfaces can be directly connected through the terminal lead.- Four fixing bolt holes are provided.Specification:Weight: 118g/4.2ozCommon interface load: AC 250V/10A, DC 30V/10AModule Size (L x W x H): 141.5 x 50 x 18.5mm/5.6 x 2 x 0.7inchBolt Hole: 3.1 mm; 136 x 44.5mm (spacing)Voltage: 5V/ 12V/ 24V (Optional)High and low level trigger selection terminal:1. S1-S8 is the high-low level trigger selection of relay 1-8 channels successively;2. Com and low short connection, the corresponding relay for low level trigger, com and high short connection for high level trigger.Package List:1 * Relay Module About this item [Optocoupler Isolation]: The isolation circuit prevent damages to I / O port by relay switch current [Application]: Supports all MCU control, The industrial field, PLC control, Smart home control [Easy to Use]: Each relay has normally open and normally closed contact, can be selected by jumper relay and TTL or ground [3 Voltage for Option]: Equipped with high-current relay, AC250V 10A ; DC30V 11A; There are 3 module operating voltage (5V, 12V, 24V) for your different requirement [100% Satisfaction]: If you have any question about this item, please feel free to contact us, we will help you within 24 hours on weekdays [Optocoupler Isolation] [Application] [Easy to Use] [3 Voltage for Option] [100% Satisfaction]