The VELLEMAN MK111 Interval Timer Kit is a compact and versatile electronic timer designed to provide reliable intermittent switching for a wide variety of automation, control, lighting, and hobby applications. Featuring independently adjustable pulse and pause intervals, this easy-to-build kit is ideal for projects that require repetitive ON/OFF cycling without the need for complex programming.
The MK111 operates by repeatedly switching its onboard relay ON and OFF according to user-defined timing intervals. Both the pulse duration and pause duration can be adjusted independently using onboard controls, allowing the timer to be customised for numerous applications, from simple flashing lights to automated equipment control.
The pulse time can be adjusted between 0.5 and 5 seconds, while the pause interval is adjustable from 2.5 to 60 seconds, giving users excellent flexibility for creating repeating timing sequences.
A built-in 3A relay with dry changeover contacts allows the MK111 to safely control a wide range of low-voltage and switching applications. The relay output can be connected to lamps, motors, alarms, solenoids, cameras, relays, model accessories, and other electrical devices within its switching capacity.
The MK111 is ideal for applications such as flashing warning lights, photography and video single-frame triggering, slide projector automation, miniature railway and model control, process automation, alarm systems, test equipment, and many other repetitive control tasks requiring reliable interval timing.
Powered from a standard 12VDC supply, the timer consumes minimal current, making it suitable for continuous operation in permanently installed systems as well as portable projects.
Its compact PCB design allows easy installation inside equipment enclosures, automation panels, model layouts, and custom electronic projects. As a self-assembly kit, it also provides an excellent educational introduction to timer circuits, relay control, and automation electronics.
Whether you're building a flashing beacon, automating photography equipment, controlling model railway accessories, or creating a repeating control system for industrial or hobby projects, the VELLEMAN MK111 Interval Timer Kit delivers dependable timing performance with simple adjustment and reliable relay switching.
Features
Adjustable interval timer with repeating ON/OFF operation
Independently adjustable pulse and pause times
Built-in relay with dry changeover contacts
Suitable for intermittent equipment control
Ideal for flashing lights and warning indicators
Perfect for photography and video trigger applications
Excellent for model railways and miniature automation
Compact PCB design
Low power consumption
Easy self-assembly
Specifications
Product Code: VELLEMAN MK111
Product Name: Interval Timer Kit
Function Group: Timers / Controllers / Sensors
Relay Output: Dry changeover contact
Relay Rating: 3A / 24V
Pulse Time Adjustment: 0.5 to 5 seconds
Pause Time Adjustment: 2.5 to 60 seconds
Power Supply: 12VDC
Current Consumption: 100mA
PCB Dimensions: 40 × 85mm (1.6 × 3.4")
Typical Applications: Flashing lights, warning beacons, photography triggering, single-frame video capture, slide projector control, miniature railway automation, model engineering, alarm systems, industrial automation, process control, repetitive switching applications, educational electronics, and DIY control projects.
What's in the box
1 x VELLEMAN MK111 Adjustable Interval Timer Relay Controller Kit
