Description: Features: 12V Relay Module with Optocoupler, relays, and completely isolated from SCM! (You can achieve complete separation of the two power supplies) Has power reversal protection diode, the effectively protecting the product; The board with a power transistor to drive the relay. High quality delay chip design, With far better performance than 555 chip; LED indicator light for power and time indication; Specifications: Delay Time Range : 8 Ranges(0.1 Second to 1 hour delay); Contact Type : NO(Normally Open), Delayed Triggering Power Supply : DC 12V; Load Voltage : 10A 250VAC 10A 125VAC,10A 30VDC 10A 28VDC Total Size : 6 x 3.5 x 2.5cm/2.4" x 1.4" x 1"(L*W*T); Mounting Hole Dia : 3mm/ 0.12" Cable Length: 12cm/4.7"; Material: Electric Part Weight : 30g Package list: 1 x Circulate Time Delay Module
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