DC 6V To 30V One Way Relay Module

Wide voltage power supply (6 – 30V), supports micro USB 5.0V power supply, making this 6-30V 1-channel power relay module with adjustable timing cycle easy to integrate into various projects. It comes with an emergency stop function (stop button) and reverse polarity protection, which helps prevent damage from incorrect wiring.

This is a 6-30V 1-Channel Delay Power Relay Module with onboard adjustable timing cycle switches and a digital LED display. This one way relay module is widely used in home automation delay timer control systems and timer controller applications. The module operates within an input voltage range of 6-30V and also supports micro USB 5.0V power supply.

With strong output capability, this 30V relay can control devices up to DC 30V 5A or AC 220V 5A. Its versatility makes it suitable for a wide range of applications, including automation, DIY electronics, and industrial control systems. As a compact and efficient one relay solution, it ensures stable and reliable switching performance across use cases.

What is Relay? Explained in simple terms.

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At Robocraze, the price starts at just 99, making it one of the most affordable and value-packed relay modules available. Pricing may vary based on ongoing offers, stock availability, and promotional discounts, ensuring you always get competitive deals. Unlike low-cost generic alternatives, our relay modules are carefully quality-checked for stable switching performance, long operational life, and reliable load handling. We prioritize durability and consistent performance, giving you better build quality compared to many unverified marketplace sellers. Whether you’re working on automation, robotics, or embedded system projects, you get both affordability and reliability in one product.

Operation Mode:

P1: Trigger signal, the relay is on OP time, and then disconnect; Within the OP time, proceed as follows:

P1.1: the signal is triggered again, invalid

P1.2: the signal is triggered again, re-clocking

P1.3: Signal has triggered again, the relay is disconnected, stop the clock;

P-2: Trigger signal, after the CL time is off, the OP time is on. When the timing is completed, the replay will be disconnected;

P3.1: Trigger signal, after the OP time is on, the CL time is off, then cycle the above actions. If trigger signal within the loop, the relay will be disconnected and stop the clock. The number of cycles ( LOP ) can be set.

P3.2: No need to trigger the signal after powering up, the OP time is on, the CL time is off, then cycle the above actions; The number of cycles ( LOP ) can be set.

P-4: Signal holding function. If the signal is triggered, timing is cleared, the relay remains on; when the signal disappears, the relay will be off when the OP time is over; if another signal is triggered during timing, timing will be cleared.

How to choose the time interval:

parameter Introduction: OP power over time, turn off time CL, LOP cycle times (1-999 times, is unlimited cycle)

1. In the selection of parameter set interface mode, and press the STOP button to select the time.

(1)xxx. if the decimal point is in some place, the time interval is s-1 999 s

(2)xx. x is the decimal place is ten, the time interval is 0.1 s 99.9 s-

(3)x. x. x is the decimal point are all on, the time interval is 1 min-999 min

How to set the parameter:

First, make sure relay operation mode

According to the operating relay mode, the main interface (power module will flash current operating mode; standard mode P1.1, then come into the main interface); long press SET key two seconds and then choose and enter selection interface mode; by pressing UP, DOWN key to choose the mode setting (P1.1 ~ P4)

After selecting the mode, press short SET to set the corresponding parameter, then the parameter you want to set will flash (OP power in time; CL power off time; LOP cycle times, is unlimited cycle ); by UP, DOWN to set the parameter value, support long press (increase or decrease quickly) and press slightly (increase or decrease of 1 unit); after setting the parameter value by short press the STOP key to choosing decimal place; choose the time interval (corresponding time interval is 0.1 s-999 min); Short press SET to set the current mode next parameter, the process is the same as above

After the setting mode parameter, press and hold the SET button then hold the current configuration mode will flash, then go back to the main interface; define success parameter main interface: when the relay does not work, it will show 000 (no decimal point); the operating state relay, the screen has a decimal point

Mode Select Interface:

press and hold the SET key to enter; after setting, long-press the SET button back on the main interface

Activate Relay Mode:

NO: PO in power over time, the relay can be connected

OFF: relay is not allowed to connect, when in the off state

in short main interface press the STOP key to achieve turn ON and OFF, the current state will flash; then back to the main interface

(this function is a function of a sudden stop, 1 key to turn off the relay)

Sleep Mode:

C-P Sleep mode: within 5 minutes, no operation; nixie tube will close auto display, and a function program well

Note:

1. Press and hold the STOP button for 2 seconds can achieve change from C-P to O-d; Current state will flash and then return to the main interface
2. The relay contact is passive and electricity production; 1 channel has the control function on / off

Features:

• Wide operating voltage: 6V to 30V
• Adjustable timing cycle with digital display
• Supports DC and AC load control
• Built-in reverse polarity protection
• Emergency stop function for safety
• Optocoupler isolation for noise resistance
• Compact and easy-to-use design

Applications of 6-30V Relay Module:

This 6-30V 1-channel power relay module with adjustable timing cycle is ideal for applications such as delay switching, motor control, lighting automation, and smart home systems. Whether you’re using a 30V relay for industrial automation or a compact one relay setup for DIY electronics, this module offers flexibility, precision timing control, and dependable performance.

DC 6V To 30V One Way Relay Module Specifications Comparison: