Delay relay module with adjustable time, compatible with 6–30V (MicroUSB 5V power possible). Ideal for industrial and DIY applications that require a delay relay module with adjustable control and timing, digital display, and anti-interference protection.
Key Features
Power supply: 5V (MicroUSB) or 6–30V DC
Trigger: High Level Trigger 3–24V
Output capacity: up to 30VDC 5A or 220VAC 5A
Optocoupler isolation: increases interference immunity and stores settings
Time resolution: adjustable 0.1 s – 999 min
Digital display: count-up or count-down display, status indicator
Dimensions: 62 × 38 × 17 mm
Benefits
Intuitive configuration — SET / UP / DOWN / STOP buttons for quick setup
Reliable operation in electrically noisy environments thanks to the optocoupler
Multiple modes (P1–P4) for flexibility in automation
Permanent memory of parameters after setup
Compact and easy to integrate into panels or DIY projects
Technical Specifications
Parameter
Detail
Power supply
5V MicroUSB or 6–30V DC
Trigger
High Level 3–24V
Isolation type
Optocoupler
Switching current
≤ 5A (up to 30VDC or 220VAC)
Time range
0.1 s – 999 min (selectable)
Modes
P1 (pulse on), P2 (delay then on), P3 (loop), P4 (hold then delay)
Dimensions
62 × 38 × 17 mm
Display resolution
0.1 s / 1 s / 1 min (selectable via decimal position)
Operating Modes (Detailed)
P1 — Pulse ON (OP)
Upon receiving the signal, the relay turns on for the OP duration, then switches off. Submodes:
P1.1 — ignores repeated signals during OP
P1.2 — repeated signal restarts the OP timer
P1.3 — reset signal stops the relay and the timer
P2 — Delay then ON
Upon signal, the module waits for CL, then activates the relay for OP, then turns off.
P3 — Loop (ON/OFF cycle)
P3.1 — starts ON/OFF cycle on signal; P3.2 — starts automatic cycle at power-on without signal. Number of cycles (LOP) is adjustable or unlimited.
P4 — Hold then Delay
The relay stays active while the signal is present. When the signal disappears, OP timing starts; it stops at expiration. During signal presence, the timer resets.
Parameter Setup (Step by Step)
Ensure the module has correct power (5V MicroUSB or 6–30V at connectors).
In the main interface, hold SET for 2s to enter mode selection menu.
Use UP/DOWN to choose P1–P4; short SET to edit OP / CL / LOP parameters.
After setting values, hold SET for 2s to save and return to the main interface.
Use STOP to quickly change ON/OFF state (emergency stop function).
How to select the time interval
Short press STOP in the setup menu to move the decimal point and select resolution (0.1 s / 1 s / 1 min). Example: OP = 03.2 displays 3.2 seconds.
Warnings and Wiring
Be careful with relay contacts — they are passive; incorrect wiring may cause danger at high voltages (220VAC).
Relay pins are exposed — avoid direct contact during operation.
Use trigger signal according to specification (High Level 3–24V).
Optionally, connect signal ground to system ground only if project specifications allow.
Recommended Applications
Industrial and home automation
Control of small motors, pumps, and valves (observe max current)
DIY systems with Arduino / PLC for timed commands
Projects requiring a delay relay module with display for monitoring
Frequently Asked Questions
Can it be powered via MicroUSB?
Yes — 5V MicroUSB power is supported; alternatively, 6–30V at connectors.
What is the maximum contact current?
Up to 5A at 30VDC or 220VAC (check load conditions and power factor).
Minimum time interval?
0.1 s (depends on decimal position) up to 999 minutes.
Technical Note
The module includes optocoupler isolation, permanent memory of parameters, and support for multiple operating modes (P1–P4). Recommended for users needing a delay relay module with adjustable control and timing, visible display, and precise control.
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