4 Channel 5V Relay Expansion Board V1.3 Module Computer Accessories,Default NO

Features:

1. Support 4 channel 3A relay control, for xbee wireless module, etc.

2. Independent external power supply and optocoupler isolation, effectively avoid electromagnetic interference of the controlled device

Specification

External power supply voltage: 7 ~ 12V (> 200mA)

Relay maximum conversion voltage: 240VAC/60VDC

Relay maximum conversion current: 5A

Contact load capacity: 1A 250VAC, 3A 120VA / 24VDC

Number of relays: 4

Wireless output interface: (serial port) for Bluetooth Bee/Wireless Programming Module

Occupy for port: (relay) digital port 2, 3, 4, 5, (wireless module) digital port 0, 1

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