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Green rectangular circuit board with relay, terminal blocks, and ESP-8266 module

Traditions (Generic)

Traditions (Generic) 8266 Relay Module 10A 220V DC 7V-30V 4 Layer Board TVS Protection computer power cord

SKU CH-91PH-YAS67

A Wi-Fi relay module switching 10 A at 220 V with 7–30 V DC input and TVS protection

  • Handles 220 V loads with a 10 A relay rating
  • Wide DC input range from 7 V to 30 V powers the module flexibly
  • Four-layer board layout improves signal integrity and durability
  • Built-in TVS protection guards the input against voltage spikes

8266 Relay Module 10A 220V

This 8266 relay module switches 10 A at 220 V for network-connected automation tasks. It accepts a DC input between 7 V and 30 V and includes TVS automatic protection on the input side. The four-layer board layout supports stable operation in custom control projects. It suits makers integrating Wi-Fi relay switching into existing systems.

Thermals noise and power draw

The module draws minimal power from the DC supply while the relay coil is inactive. During switching the coil current creates a brief load within the 7 V to 30 V range. No active cooling is fitted so the board runs silently in normal use. Heat stays low because the relay only conducts when closed.

How it compares

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Price $10.99
Cheaper than about 73% of the 1,029 comparable items (median $15.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I wire the 8266 relay module to a 220 V load and what is the common mistake?

Connect the load to the COM and NO terminals on the high-voltage side and supply 7 V to 30 V DC to the input pins. The frequent error is swapping the live and neutral wires on the 220 V side, which leaves the load permanently energised.

What part of the 8266 module will need replacement after repeated switching?

The mechanical relay contacts are rated for 10 A at 220 V and will wear out after many cycles, so the relay itself is the component that eventually requires replacement.

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